---
_id: '55085'
abstract:
- lang: eng
  text: The lithium niobate–lithium tantalate solid solution’s phase diagram was investigated
    using experimental data from differential thermal analysis (DTA) and crystal growth.
    We used XRF analysis to determine the elemental composition of the crystals. The
    Neumann–Kopp rule provided essential data for the end members lithium niobate
    (LN) and lithium tantalate (LT). The heats of fusion of the end members, given
    by DTA measurements, are 103 kJ/mol at 1531 K for LN and 289 kJ/mol at 1913 K
    for LT. These values were used as input parameters to generate the data. This
    data served as the basis for calculating a phase diagram for LN-LT solid solutions.
    Finally, based on the experimental data and a thermodynamic solution model, the
    Calphad Factsage module optimized the phase diagram. We also generated thermodynamic
    parameters for Gibbs’ excess energy of the solid solution. A plot of the segregation
    coefficient as a function of Ta concentration was derived from the phase diagram.
author:
- first_name: Umar
  full_name: Bashir, Umar
  last_name: Bashir
- first_name: Detlef
  full_name: Klimm, Detlef
  last_name: Klimm
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Matthias
  full_name: Bickermann, Matthias
  last_name: Bickermann
- first_name: Steffen
  full_name: Ganschow, Steffen
  last_name: Ganschow
citation:
  ama: Bashir U, Klimm D, Rüsing M, Bickermann M, Ganschow S. Evaluation and thermodynamic
    optimization of phase diagram of lithium niobate tantalate solid solutions. <i>Journal
    of Materials Science</i>. Published online 2024. doi:<a href="https://doi.org/10.1007/s10853-024-09932-7">10.1007/s10853-024-09932-7</a>
  apa: Bashir, U., Klimm, D., Rüsing, M., Bickermann, M., &#38; Ganschow, S. (2024).
    Evaluation and thermodynamic optimization of phase diagram of lithium niobate
    tantalate solid solutions. <i>Journal of Materials Science</i>. <a href="https://doi.org/10.1007/s10853-024-09932-7">https://doi.org/10.1007/s10853-024-09932-7</a>
  bibtex: '@article{Bashir_Klimm_Rüsing_Bickermann_Ganschow_2024, title={Evaluation
    and thermodynamic optimization of phase diagram of lithium niobate tantalate solid
    solutions}, DOI={<a href="https://doi.org/10.1007/s10853-024-09932-7">10.1007/s10853-024-09932-7</a>},
    journal={Journal of Materials Science}, publisher={Springer Science and Business
    Media LLC}, author={Bashir, Umar and Klimm, Detlef and Rüsing, Michael and Bickermann,
    Matthias and Ganschow, Steffen}, year={2024} }'
  chicago: Bashir, Umar, Detlef Klimm, Michael Rüsing, Matthias Bickermann, and Steffen
    Ganschow. “Evaluation and Thermodynamic Optimization of Phase Diagram of Lithium
    Niobate Tantalate Solid Solutions.” <i>Journal of Materials Science</i>, 2024.
    <a href="https://doi.org/10.1007/s10853-024-09932-7">https://doi.org/10.1007/s10853-024-09932-7</a>.
  ieee: 'U. Bashir, D. Klimm, M. Rüsing, M. Bickermann, and S. Ganschow, “Evaluation
    and thermodynamic optimization of phase diagram of lithium niobate tantalate solid
    solutions,” <i>Journal of Materials Science</i>, 2024, doi: <a href="https://doi.org/10.1007/s10853-024-09932-7">10.1007/s10853-024-09932-7</a>.'
  mla: Bashir, Umar, et al. “Evaluation and Thermodynamic Optimization of Phase Diagram
    of Lithium Niobate Tantalate Solid Solutions.” <i>Journal of Materials Science</i>,
    Springer Science and Business Media LLC, 2024, doi:<a href="https://doi.org/10.1007/s10853-024-09932-7">10.1007/s10853-024-09932-7</a>.
  short: U. Bashir, D. Klimm, M. Rüsing, M. Bickermann, S. Ganschow, Journal of Materials
    Science (2024).
date_created: 2024-07-05T06:47:53Z
date_updated: 2024-07-05T06:49:25Z
department:
- _id: '15'
- _id: '169'
- _id: '623'
doi: 10.1007/s10853-024-09932-7
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1007/s10853-024-09932-7
oa: '1'
publication: Journal of Materials Science
publication_identifier:
  issn:
  - 0022-2461
  - 1573-4803
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Evaluation and thermodynamic optimization of phase diagram of lithium niobate
  tantalate solid solutions
type: journal_article
user_id: '22501'
year: '2024'
...
---
_id: '55140'
article_number: '012424'
author:
- first_name: Farha
  full_name: Yasmin, Farha
  last_name: Yasmin
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
citation:
  ama: 'Yasmin F, Sperling J. Entanglement-assisted quantum speedup: Beating local
    quantum speed limits. <i>Physical Review A</i>. 2024;110(1). doi:<a href="https://doi.org/10.1103/physreva.110.012424">10.1103/physreva.110.012424</a>'
  apa: 'Yasmin, F., &#38; Sperling, J. (2024). Entanglement-assisted quantum speedup:
    Beating local quantum speed limits. <i>Physical Review A</i>, <i>110</i>(1), Article
    012424. <a href="https://doi.org/10.1103/physreva.110.012424">https://doi.org/10.1103/physreva.110.012424</a>'
  bibtex: '@article{Yasmin_Sperling_2024, title={Entanglement-assisted quantum speedup:
    Beating local quantum speed limits}, volume={110}, DOI={<a href="https://doi.org/10.1103/physreva.110.012424">10.1103/physreva.110.012424</a>},
    number={1012424}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Yasmin, Farha and Sperling, Jan}, year={2024} }'
  chicago: 'Yasmin, Farha, and Jan Sperling. “Entanglement-Assisted Quantum Speedup:
    Beating Local Quantum Speed Limits.” <i>Physical Review A</i> 110, no. 1 (2024).
    <a href="https://doi.org/10.1103/physreva.110.012424">https://doi.org/10.1103/physreva.110.012424</a>.'
  ieee: 'F. Yasmin and J. Sperling, “Entanglement-assisted quantum speedup: Beating
    local quantum speed limits,” <i>Physical Review A</i>, vol. 110, no. 1, Art. no.
    012424, 2024, doi: <a href="https://doi.org/10.1103/physreva.110.012424">10.1103/physreva.110.012424</a>.'
  mla: 'Yasmin, Farha, and Jan Sperling. “Entanglement-Assisted Quantum Speedup: Beating
    Local Quantum Speed Limits.” <i>Physical Review A</i>, vol. 110, no. 1, 012424,
    American Physical Society (APS), 2024, doi:<a href="https://doi.org/10.1103/physreva.110.012424">10.1103/physreva.110.012424</a>.'
  short: F. Yasmin, J. Sperling, Physical Review A 110 (2024).
date_created: 2024-07-09T10:27:33Z
date_updated: 2024-07-09T10:29:29Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '429'
doi: 10.1103/physreva.110.012424
intvolume: '       110'
issue: '1'
language:
- iso: eng
project:
- _id: '174'
  grant_number: '231447078'
  name: 'TRR 142 - C10: TRR 142 -  Erzeugung und Charakterisierung von Quantenlicht
    in nichtlinearen Systemen: Eine theoretische Analyse (C10*)'
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Entanglement-assisted quantum speedup: Beating local quantum speed limits'
type: journal_article
user_id: '75127'
volume: 110
year: '2024'
...
---
_id: '55173'
article_number: '013705'
author:
- first_name: Christian
  full_name: Di Fidio, Christian
  last_name: Di Fidio
- first_name: Laura
  full_name: Ares, Laura
  last_name: Ares
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
citation:
  ama: Di Fidio C, Ares L, Sperling J. Quantum walks and entanglement in cavity networks.
    <i>Physical Review A</i>. 2024;110(1). doi:<a href="https://doi.org/10.1103/physreva.110.013705">10.1103/physreva.110.013705</a>
  apa: Di Fidio, C., Ares, L., &#38; Sperling, J. (2024). Quantum walks and entanglement
    in cavity networks. <i>Physical Review A</i>, <i>110</i>(1), Article 013705. <a
    href="https://doi.org/10.1103/physreva.110.013705">https://doi.org/10.1103/physreva.110.013705</a>
  bibtex: '@article{Di Fidio_Ares_Sperling_2024, title={Quantum walks and entanglement
    in cavity networks}, volume={110}, DOI={<a href="https://doi.org/10.1103/physreva.110.013705">10.1103/physreva.110.013705</a>},
    number={1013705}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Di Fidio, Christian and Ares, Laura and Sperling, Jan}, year={2024}
    }'
  chicago: Di Fidio, Christian, Laura Ares, and Jan Sperling. “Quantum Walks and Entanglement
    in Cavity Networks.” <i>Physical Review A</i> 110, no. 1 (2024). <a href="https://doi.org/10.1103/physreva.110.013705">https://doi.org/10.1103/physreva.110.013705</a>.
  ieee: 'C. Di Fidio, L. Ares, and J. Sperling, “Quantum walks and entanglement in
    cavity networks,” <i>Physical Review A</i>, vol. 110, no. 1, Art. no. 013705,
    2024, doi: <a href="https://doi.org/10.1103/physreva.110.013705">10.1103/physreva.110.013705</a>.'
  mla: Di Fidio, Christian, et al. “Quantum Walks and Entanglement in Cavity Networks.”
    <i>Physical Review A</i>, vol. 110, no. 1, 013705, American Physical Society (APS),
    2024, doi:<a href="https://doi.org/10.1103/physreva.110.013705">10.1103/physreva.110.013705</a>.
  short: C. Di Fidio, L. Ares, J. Sperling, Physical Review A 110 (2024).
date_created: 2024-07-11T07:20:08Z
date_updated: 2024-07-11T07:21:12Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '429'
doi: 10.1103/physreva.110.013705
intvolume: '       110'
issue: '1'
language:
- iso: eng
project:
- _id: '266'
  grant_number: PROFILNRW-2020-067
  name: 'PhoQC: PhoQC: Photonisches Quantencomputing'
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Quantum walks and entanglement in cavity networks
type: journal_article
user_id: '75127'
volume: 110
year: '2024'
...
---
_id: '55174'
abstract:
- lang: eng
  text: "<jats:p>We apply principal component analysis (PCA) to a set of electrical
    output signals from a commercially available superconducting nanowire single-photon
    detector (SNSPD) to investigate their photon-number-resolving capability. We find
    that the rising edge as well as the amplitude of the electrical signal have the
    most dependence on photon number. Accurately measuring the rising edge while simultaneously
    measuring the voltage of the pulse amplitude maximizes the photon-number resolution
    of SNSPDs. Using an optimal basis of principal components, we show unambiguous
    discrimination between one- and two-photon events, as well as partial resolution
    up to five photons. This expands the use case of SNSPDs to photon-counting experiments,
    without the need of detector multiplexing architectures.</jats:p>\r\n          <jats:sec>\r\n
    \           <jats:title/>\r\n            <jats:supplementary-material>\r\n              <jats:permissions>\r\n
    \               <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement>\r\n
    \               <jats:copyright-year>2024</jats:copyright-year>\r\n              </jats:permissions>\r\n
    \           </jats:supplementary-material>\r\n          </jats:sec>"
article_number: '014024'
author:
- first_name: Timon
  full_name: Schapeler, Timon
  id: '55629'
  last_name: Schapeler
  orcid: 0000-0001-7652-1716
- first_name: Niklas
  full_name: Lamberty, Niklas
  last_name: Lamberty
- first_name: Thomas
  full_name: Hummel, Thomas
  id: '83846'
  last_name: Hummel
  orcid: 0000-0001-8627-2119
- first_name: Fabian
  full_name: Schlue, Fabian
  id: '63579'
  last_name: Schlue
- first_name: Michael
  full_name: Stefszky, Michael
  id: '42777'
  last_name: Stefszky
- first_name: Benjamin
  full_name: Brecht, Benjamin
  id: '27150'
  last_name: Brecht
  orcid: '0000-0003-4140-0556 '
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: Schapeler T, Lamberty N, Hummel T, et al. Electrical trace analysis of superconducting
    nanowire photon-number-resolving detectors. <i>Physical Review Applied</i>. 2024;22(1).
    doi:<a href="https://doi.org/10.1103/physrevapplied.22.014024">10.1103/physrevapplied.22.014024</a>
  apa: Schapeler, T., Lamberty, N., Hummel, T., Schlue, F., Stefszky, M., Brecht,
    B., Silberhorn, C., &#38; Bartley, T. (2024). Electrical trace analysis of superconducting
    nanowire photon-number-resolving detectors. <i>Physical Review Applied</i>, <i>22</i>(1),
    Article 014024. <a href="https://doi.org/10.1103/physrevapplied.22.014024">https://doi.org/10.1103/physrevapplied.22.014024</a>
  bibtex: '@article{Schapeler_Lamberty_Hummel_Schlue_Stefszky_Brecht_Silberhorn_Bartley_2024,
    title={Electrical trace analysis of superconducting nanowire photon-number-resolving
    detectors}, volume={22}, DOI={<a href="https://doi.org/10.1103/physrevapplied.22.014024">10.1103/physrevapplied.22.014024</a>},
    number={1014024}, journal={Physical Review Applied}, publisher={American Physical
    Society (APS)}, author={Schapeler, Timon and Lamberty, Niklas and Hummel, Thomas
    and Schlue, Fabian and Stefszky, Michael and Brecht, Benjamin and Silberhorn,
    Christine and Bartley, Tim}, year={2024} }'
  chicago: Schapeler, Timon, Niklas Lamberty, Thomas Hummel, Fabian Schlue, Michael
    Stefszky, Benjamin Brecht, Christine Silberhorn, and Tim Bartley. “Electrical
    Trace Analysis of Superconducting Nanowire Photon-Number-Resolving Detectors.”
    <i>Physical Review Applied</i> 22, no. 1 (2024). <a href="https://doi.org/10.1103/physrevapplied.22.014024">https://doi.org/10.1103/physrevapplied.22.014024</a>.
  ieee: 'T. Schapeler <i>et al.</i>, “Electrical trace analysis of superconducting
    nanowire photon-number-resolving detectors,” <i>Physical Review Applied</i>, vol.
    22, no. 1, Art. no. 014024, 2024, doi: <a href="https://doi.org/10.1103/physrevapplied.22.014024">10.1103/physrevapplied.22.014024</a>.'
  mla: Schapeler, Timon, et al. “Electrical Trace Analysis of Superconducting Nanowire
    Photon-Number-Resolving Detectors.” <i>Physical Review Applied</i>, vol. 22, no.
    1, 014024, American Physical Society (APS), 2024, doi:<a href="https://doi.org/10.1103/physrevapplied.22.014024">10.1103/physrevapplied.22.014024</a>.
  short: T. Schapeler, N. Lamberty, T. Hummel, F. Schlue, M. Stefszky, B. Brecht,
    C. Silberhorn, T. Bartley, Physical Review Applied 22 (2024).
date_created: 2024-07-11T07:23:08Z
date_updated: 2024-07-11T09:36:00Z
department:
- _id: '15'
- _id: '623'
doi: 10.1103/physrevapplied.22.014024
intvolume: '        22'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '239'
  call_identifier: ERC
  grant_number: '101042399'
  name: 'QuESADILLA: ERC-Grant: QuESADILLA: Quantum Engineering Superconducting Array
    Detectors in Low-Light Applications'
- _id: '191'
  grant_number: 13N16103
  name: 'PhoQuant--QCTest: PhoQuant: Photonische Quantencomputer -  Quantencomputing
    Testplattform'
publication: Physical Review Applied
publication_identifier:
  issn:
  - 2331-7019
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Electrical trace analysis of superconducting nanowire photon-number-resolving
  detectors
type: journal_article
user_id: '55629'
volume: 22
year: '2024'
...
---
_id: '54668'
abstract:
- lang: eng
  text: Samples of dielectric optical waveguides of rib or strip type in thin-film
    lithium niobate (TFLN) technology are characterized with respect to their optical
    loss using the Fabry-Pérot method. Attributing the losses mainly to sidewall roughness,
    we employ a simple perturbational procedure, based on rigorously computed mode
    profiles of idealized channels, to estimate the attenuation for waveguides with
    different cross sections. A single fit parameter suffices for an adequate modelling
    of the effect of the waveguide geometry on the loss levels.
author:
- first_name: Manfred
  full_name: Hammer, Manfred
  id: '48077'
  last_name: Hammer
  orcid: 0000-0002-6331-9348
- first_name: Silia
  full_name: Babel, Silia
  id: '63231'
  last_name: Babel
  orcid: https://orcid.org/0000-0002-1568-2580
- first_name: Henna
  full_name: Farheen, Henna
  id: '53444'
  last_name: Farheen
  orcid: 0000-0001-7730-3489
- first_name: Laura
  full_name: Padberg, Laura
  id: '40300'
  last_name: Padberg
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
citation:
  ama: Hammer M, Babel S, Farheen H, et al. Estimation of losses caused by sidewall
    roughness in thin-film lithium niobate rib and strip waveguides. <i>Optics Express</i>.
    2024;32(13):22878. doi:<a href="https://doi.org/10.1364/oe.521766">10.1364/oe.521766</a>
  apa: Hammer, M., Babel, S., Farheen, H., Padberg, L., Scheytt, J. C., Silberhorn,
    C., &#38; Förstner, J. (2024). Estimation of losses caused by sidewall roughness
    in thin-film lithium niobate rib and strip waveguides. <i>Optics Express</i>,
    <i>32</i>(13), 22878. <a href="https://doi.org/10.1364/oe.521766">https://doi.org/10.1364/oe.521766</a>
  bibtex: '@article{Hammer_Babel_Farheen_Padberg_Scheytt_Silberhorn_Förstner_2024,
    title={Estimation of losses caused by sidewall roughness in thin-film lithium
    niobate rib and strip waveguides}, volume={32}, DOI={<a href="https://doi.org/10.1364/oe.521766">10.1364/oe.521766</a>},
    number={13}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Hammer,
    Manfred and Babel, Silia and Farheen, Henna and Padberg, Laura and Scheytt, J.
    Christoph and Silberhorn, Christine and Förstner, Jens}, year={2024}, pages={22878}
    }'
  chicago: 'Hammer, Manfred, Silia Babel, Henna Farheen, Laura Padberg, J. Christoph
    Scheytt, Christine Silberhorn, and Jens Förstner. “Estimation of Losses Caused
    by Sidewall Roughness in Thin-Film Lithium Niobate Rib and Strip Waveguides.”
    <i>Optics Express</i> 32, no. 13 (2024): 22878. <a href="https://doi.org/10.1364/oe.521766">https://doi.org/10.1364/oe.521766</a>.'
  ieee: 'M. Hammer <i>et al.</i>, “Estimation of losses caused by sidewall roughness
    in thin-film lithium niobate rib and strip waveguides,” <i>Optics Express</i>,
    vol. 32, no. 13, p. 22878, 2024, doi: <a href="https://doi.org/10.1364/oe.521766">10.1364/oe.521766</a>.'
  mla: Hammer, Manfred, et al. “Estimation of Losses Caused by Sidewall Roughness
    in Thin-Film Lithium Niobate Rib and Strip Waveguides.” <i>Optics Express</i>,
    vol. 32, no. 13, Optica Publishing Group, 2024, p. 22878, doi:<a href="https://doi.org/10.1364/oe.521766">10.1364/oe.521766</a>.
  short: M. Hammer, S. Babel, H. Farheen, L. Padberg, J.C. Scheytt, C. Silberhorn,
    J. Förstner, Optics Express 32 (2024) 22878.
date_created: 2024-06-10T11:18:06Z
date_updated: 2024-07-22T07:43:02Z
ddc:
- '530'
department:
- _id: '61'
- _id: '429'
- _id: '623'
- _id: '263'
- _id: '288'
doi: 10.1364/oe.521766
file:
- access_level: open_access
  content_type: application/pdf
  creator: fossie
  date_created: 2024-06-10T11:25:00Z
  date_updated: 2024-06-10T11:25:00Z
  file_id: '54669'
  file_name: 2024-06 Hammer - Optics Express - Estimation of losses caused by sidewall
    roughness in thin-film lithium niobate rib and strip waveguides.pdf
  file_size: 4004782
  relation: main_file
file_date_updated: 2024-06-10T11:25:00Z
has_accepted_license: '1'
intvolume: '        32'
issue: '13'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: '22878'
project:
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
    Konzepten zu funktionellen Strukturen'
- _id: '175'
  grant_number: '231447078'
  name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
    Modulatoren auf Basis von CMOS und LNOI (C11*)'
- _id: '167'
  grant_number: '231447078'
  name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle
    eines photonischen Quantensystems (B06*)'
- _id: '266'
  grant_number: PROFILNRW-2020-067
  name: 'PhoQC: PhoQC: Photonisches Quantencomputing'
publication: Optics Express
publication_identifier:
  issn:
  - 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Estimation of losses caused by sidewall roughness in thin-film lithium niobate
  rib and strip waveguides
type: journal_article
user_id: '158'
volume: 32
year: '2024'
...
---
_id: '55737'
abstract:
- lang: eng
  text: "<jats:p>We report on a photonic simulator of the critical state forming at
    the quantum phase transition between topologically distinct Anderson insulator
    phases. We observe a time-staggered profile in the circular photon polarization,
    which originates from the interplay of a chiral and sublattice symmetry, and has
    recently been suggested as a signature for topological Anderson criticality within
    the setup. We discuss the role of statistical detuning from criticality and show
    that the controlled breaking of phase coherence removes the signal, revealing
    its origin in quantum coherence.</jats:p>\r\n          <jats:sec>\r\n            <jats:title/>\r\n
    \           <jats:supplementary-material>\r\n              <jats:permissions>\r\n
    \               <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement>\r\n
    \               <jats:copyright-year>2024</jats:copyright-year>\r\n              </jats:permissions>\r\n
    \           </jats:supplementary-material>\r\n          </jats:sec>"
article_number: '033194'
author:
- first_name: Sonja
  full_name: Barkhofen, Sonja
  id: '48188'
  last_name: Barkhofen
- first_name: Syamsundar
  full_name: De, Syamsundar
  last_name: De
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Alexander
  full_name: Altland, Alexander
  last_name: Altland
- first_name: Dmitry
  full_name: Bagrets, Dmitry
  last_name: Bagrets
- first_name: Kun Woo
  full_name: Kim, Kun Woo
  last_name: Kim
- first_name: Tobias
  full_name: Micklitz, Tobias
  last_name: Micklitz
citation:
  ama: Barkhofen S, De S, Sperling J, et al. Experimental observation of topological
    quantum criticality. <i>Physical Review Research</i>. 2024;6(3). doi:<a href="https://doi.org/10.1103/physrevresearch.6.033194">10.1103/physrevresearch.6.033194</a>
  apa: Barkhofen, S., De, S., Sperling, J., Silberhorn, C., Altland, A., Bagrets,
    D., Kim, K. W., &#38; Micklitz, T. (2024). Experimental observation of topological
    quantum criticality. <i>Physical Review Research</i>, <i>6</i>(3), Article 033194.
    <a href="https://doi.org/10.1103/physrevresearch.6.033194">https://doi.org/10.1103/physrevresearch.6.033194</a>
  bibtex: '@article{Barkhofen_De_Sperling_Silberhorn_Altland_Bagrets_Kim_Micklitz_2024,
    title={Experimental observation of topological quantum criticality}, volume={6},
    DOI={<a href="https://doi.org/10.1103/physrevresearch.6.033194">10.1103/physrevresearch.6.033194</a>},
    number={3033194}, journal={Physical Review Research}, publisher={American Physical
    Society (APS)}, author={Barkhofen, Sonja and De, Syamsundar and Sperling, Jan
    and Silberhorn, Christine and Altland, Alexander and Bagrets, Dmitry and Kim,
    Kun Woo and Micklitz, Tobias}, year={2024} }'
  chicago: Barkhofen, Sonja, Syamsundar De, Jan Sperling, Christine Silberhorn, Alexander
    Altland, Dmitry Bagrets, Kun Woo Kim, and Tobias Micklitz. “Experimental Observation
    of Topological Quantum Criticality.” <i>Physical Review Research</i> 6, no. 3
    (2024). <a href="https://doi.org/10.1103/physrevresearch.6.033194">https://doi.org/10.1103/physrevresearch.6.033194</a>.
  ieee: 'S. Barkhofen <i>et al.</i>, “Experimental observation of topological quantum
    criticality,” <i>Physical Review Research</i>, vol. 6, no. 3, Art. no. 033194,
    2024, doi: <a href="https://doi.org/10.1103/physrevresearch.6.033194">10.1103/physrevresearch.6.033194</a>.'
  mla: Barkhofen, Sonja, et al. “Experimental Observation of Topological Quantum Criticality.”
    <i>Physical Review Research</i>, vol. 6, no. 3, 033194, American Physical Society
    (APS), 2024, doi:<a href="https://doi.org/10.1103/physrevresearch.6.033194">10.1103/physrevresearch.6.033194</a>.
  short: S. Barkhofen, S. De, J. Sperling, C. Silberhorn, A. Altland, D. Bagrets,
    K.W. Kim, T. Micklitz, Physical Review Research 6 (2024).
date_created: 2024-08-22T10:47:06Z
date_updated: 2024-08-22T10:47:57Z
department:
- _id: '623'
doi: 10.1103/physrevresearch.6.033194
intvolume: '         6'
issue: '3'
language:
- iso: eng
publication: Physical Review Research
publication_identifier:
  issn:
  - 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Experimental observation of topological quantum criticality
type: journal_article
user_id: '48188'
volume: 6
year: '2024'
...
---
_id: '55268'
author:
- first_name: Hendrik
  full_name: Rose, Hendrik
  id: '55958'
  last_name: Rose
  orcid: 0000-0002-3079-5428
- first_name: Polina R.
  full_name: Sharapova, Polina R.
  id: '60286'
  last_name: Sharapova
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: 'Rose H, Sharapova PR, Meier T. Microscopic simulations of the dynamics of
    excitonic many-body correlations coupled to quantum light. In: Betz M, Elezzabi
    AY, eds. <i>Ultrafast Phenomena and Nanophotonics XXVIII</i>. SPIE; 2024. doi:<a
    href="https://doi.org/10.1117/12.2690245">10.1117/12.2690245</a>'
  apa: Rose, H., Sharapova, P. R., &#38; Meier, T. (2024). Microscopic simulations
    of the dynamics of excitonic many-body correlations coupled to quantum light.
    In M. Betz &#38; A. Y. Elezzabi (Eds.), <i>Ultrafast Phenomena and Nanophotonics
    XXVIII</i>. SPIE. <a href="https://doi.org/10.1117/12.2690245">https://doi.org/10.1117/12.2690245</a>
  bibtex: '@inproceedings{Rose_Sharapova_Meier_2024, title={Microscopic simulations
    of the dynamics of excitonic many-body correlations coupled to quantum light},
    DOI={<a href="https://doi.org/10.1117/12.2690245">10.1117/12.2690245</a>}, booktitle={Ultrafast
    Phenomena and Nanophotonics XXVIII}, publisher={SPIE}, author={Rose, Hendrik and
    Sharapova, Polina R. and Meier, Torsten}, editor={Betz, Markus and Elezzabi, Abdulhakem
    Y.}, year={2024} }'
  chicago: Rose, Hendrik, Polina R. Sharapova, and Torsten Meier. “Microscopic Simulations
    of the Dynamics of Excitonic Many-Body Correlations Coupled to Quantum Light.”
    In <i>Ultrafast Phenomena and Nanophotonics XXVIII</i>, edited by Markus Betz
    and Abdulhakem Y. Elezzabi. SPIE, 2024. <a href="https://doi.org/10.1117/12.2690245">https://doi.org/10.1117/12.2690245</a>.
  ieee: 'H. Rose, P. R. Sharapova, and T. Meier, “Microscopic simulations of the dynamics
    of excitonic many-body correlations coupled to quantum light,” in <i>Ultrafast
    Phenomena and Nanophotonics XXVIII</i>, 2024, doi: <a href="https://doi.org/10.1117/12.2690245">10.1117/12.2690245</a>.'
  mla: Rose, Hendrik, et al. “Microscopic Simulations of the Dynamics of Excitonic
    Many-Body Correlations Coupled to Quantum Light.” <i>Ultrafast Phenomena and Nanophotonics
    XXVIII</i>, edited by Markus Betz and Abdulhakem Y. Elezzabi, SPIE, 2024, doi:<a
    href="https://doi.org/10.1117/12.2690245">10.1117/12.2690245</a>.
  short: 'H. Rose, P.R. Sharapova, T. Meier, in: M. Betz, A.Y. Elezzabi (Eds.), Ultrafast
    Phenomena and Nanophotonics XXVIII, SPIE, 2024.'
date_created: 2024-07-15T10:26:04Z
date_updated: 2024-08-30T11:59:34Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1117/12.2690245
editor:
- first_name: Markus
  full_name: Betz, Markus
  last_name: Betz
- first_name: Abdulhakem Y.
  full_name: Elezzabi, Abdulhakem Y.
  last_name: Elezzabi
language:
- iso: eng
project:
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
    Konzepten zu funktionellen Strukturen'
- _id: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '59'
  grant_number: '231447078'
  name: 'TRR 142 - A02: TRR 142 - Nichtlineare Spektroskopie von Halbleiter-Nanostrukturen
    mit Quantenlicht (A02)'
publication: Ultrafast Phenomena and Nanophotonics XXVIII
publication_status: published
publisher: SPIE
status: public
title: Microscopic simulations of the dynamics of excitonic many-body correlations
  coupled to quantum light
type: conference
user_id: '16199'
year: '2024'
...
---
_id: '49652'
abstract:
- lang: eng
  text: Broadband coherent anti-Stokes Raman scattering (BCARS) is a powerful spectroscopy
    method combining high signal intensity with spectral sensitivity, enabling rapid
    imaging of heterogeneous samples in biomedical research and, more recently, in
    crystalline materials. However, BCARS encounters spectral distortion due to a
    setup-dependent non-resonant background (NRB). This study assesses BCARS reproducibility
    through a round robin experiment using two distinct BCARS setups and crystalline
    materials with varying structural complexity, including diamond, 6H-SiC, KDP,
    and KTP. The analysis compares setup-specific NRB correction procedures, detected
    and NRB-removed spectra, and mode assignment. We determine the influence of BCARS
    setup parameters like pump wavelength, pulse width, and detection geometry and
    provide a practical guide for optimizing BCARS setups for solid-state applications.
article_number: '112'
article_type: original
author:
- first_name: Franz
  full_name: Hempel, Franz
  last_name: Hempel
- first_name: Federico
  full_name: Vernuccio, Federico
  last_name: Vernuccio
- first_name: Lukas
  full_name: König, Lukas
  last_name: König
- first_name: Robin
  full_name: Buschbeck, Robin
  last_name: Buschbeck
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Giulio
  full_name: Cerullo, Giulio
  last_name: Cerullo
- first_name: Dario
  full_name: Polli, Dario
  last_name: Polli
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
citation:
  ama: 'Hempel F, Vernuccio F, König L, et al. Comparing transmission- and epi-BCARS:
    a round robin on solid-state materials. <i>Applied Optics</i>. 2024;63(1). doi:<a
    href="https://doi.org/10.1364/ao.505374">10.1364/ao.505374</a>'
  apa: 'Hempel, F., Vernuccio, F., König, L., Buschbeck, R., Rüsing, M., Cerullo,
    G., Polli, D., &#38; Eng, L. M. (2024). Comparing transmission- and epi-BCARS:
    a round robin on solid-state materials. <i>Applied Optics</i>, <i>63</i>(1), Article
    112. <a href="https://doi.org/10.1364/ao.505374">https://doi.org/10.1364/ao.505374</a>'
  bibtex: '@article{Hempel_Vernuccio_König_Buschbeck_Rüsing_Cerullo_Polli_Eng_2024,
    title={Comparing transmission- and epi-BCARS: a round robin on solid-state materials},
    volume={63}, DOI={<a href="https://doi.org/10.1364/ao.505374">10.1364/ao.505374</a>},
    number={1112}, journal={Applied Optics}, publisher={Optica Publishing Group},
    author={Hempel, Franz and Vernuccio, Federico and König, Lukas and Buschbeck,
    Robin and Rüsing, Michael and Cerullo, Giulio and Polli, Dario and Eng, Lukas
    M.}, year={2024} }'
  chicago: 'Hempel, Franz, Federico Vernuccio, Lukas König, Robin Buschbeck, Michael
    Rüsing, Giulio Cerullo, Dario Polli, and Lukas M. Eng. “Comparing Transmission-
    and Epi-BCARS: A Round Robin on Solid-State Materials.” <i>Applied Optics</i>
    63, no. 1 (2024). <a href="https://doi.org/10.1364/ao.505374">https://doi.org/10.1364/ao.505374</a>.'
  ieee: 'F. Hempel <i>et al.</i>, “Comparing transmission- and epi-BCARS: a round
    robin on solid-state materials,” <i>Applied Optics</i>, vol. 63, no. 1, Art. no.
    112, 2024, doi: <a href="https://doi.org/10.1364/ao.505374">10.1364/ao.505374</a>.'
  mla: 'Hempel, Franz, et al. “Comparing Transmission- and Epi-BCARS: A Round Robin
    on Solid-State Materials.” <i>Applied Optics</i>, vol. 63, no. 1, 112, Optica
    Publishing Group, 2024, doi:<a href="https://doi.org/10.1364/ao.505374">10.1364/ao.505374</a>.'
  short: F. Hempel, F. Vernuccio, L. König, R. Buschbeck, M. Rüsing, G. Cerullo, D.
    Polli, L.M. Eng, Applied Optics 63 (2024).
date_created: 2023-12-15T07:32:38Z
date_updated: 2025-04-03T12:36:01Z
department:
- _id: '15'
- _id: '288'
- _id: '623'
doi: 10.1364/ao.505374
intvolume: '        63'
issue: '1'
keyword:
- Atomic and Molecular Physics
- and Optics
- Engineering (miscellaneous)
- Electrical and Electronic Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/pdf/2306.09701.pdf
oa: '1'
publication: Applied Optics
publication_identifier:
  issn:
  - 1559-128X
  - 2155-3165
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
related_material:
  link:
  - relation: confirmation
    url: https://arxiv.org/abs/2306.09701
status: public
title: 'Comparing transmission- and epi-BCARS: a round robin on solid-state materials'
type: journal_article
user_id: '22501'
volume: 63
year: '2024'
...
---
_id: '60023'
author:
- first_name: Helene
  full_name: Wetter, Helene
  last_name: Wetter
- first_name: Wenlong
  full_name: Gao, Wenlong
  last_name: Gao
- first_name: Falk
  full_name: Rehberg, Falk
  last_name: Rehberg
- first_name: Jan
  full_name: Wingenbach, Jan
  id: '69187'
  last_name: Wingenbach
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
citation:
  ama: 'Wetter H, Gao W, Rehberg F, Wingenbach J, Schumacher S, Zentgraf T. Dielectric
    metasurface for wave-vector variant and circular polarization dependent transmission.
    In: <i>Proceedings of The 14th International Conference on Metamaterials, Photonic
    Crystals and Plasmonics</i>. ; 2024.'
  apa: Wetter, H., Gao, W., Rehberg, F., Wingenbach, J., Schumacher, S., &#38; Zentgraf,
    T. (2024). Dielectric metasurface for wave-vector variant and circular polarization
    dependent transmission. <i>Proceedings of The 14th International Conference on
    Metamaterials, Photonic Crystals and Plasmonics</i>. META 2024 - The 14th International
    Conference on Metamaterials, Photonic Crystals and Plasmonics, Toyama, Japan.
  bibtex: '@inproceedings{Wetter_Gao_Rehberg_Wingenbach_Schumacher_Zentgraf_2024,
    title={Dielectric metasurface for wave-vector variant and circular polarization
    dependent transmission}, booktitle={Proceedings of The 14th International Conference
    on Metamaterials, Photonic Crystals and Plasmonics}, author={Wetter, Helene and
    Gao, Wenlong and Rehberg, Falk and Wingenbach, Jan and Schumacher, Stefan and
    Zentgraf, Thomas}, year={2024} }'
  chicago: Wetter, Helene, Wenlong Gao, Falk Rehberg, Jan Wingenbach, Stefan Schumacher,
    and Thomas Zentgraf. “Dielectric Metasurface for Wave-Vector Variant and Circular
    Polarization Dependent Transmission.” In <i>Proceedings of The 14th International
    Conference on Metamaterials, Photonic Crystals and Plasmonics</i>, 2024.
  ieee: H. Wetter, W. Gao, F. Rehberg, J. Wingenbach, S. Schumacher, and T. Zentgraf,
    “Dielectric metasurface for wave-vector variant and circular polarization dependent
    transmission,” presented at the META 2024 - The 14th International Conference
    on Metamaterials, Photonic Crystals and Plasmonics, Toyama, Japan, 2024.
  mla: Wetter, Helene, et al. “Dielectric Metasurface for Wave-Vector Variant and
    Circular Polarization Dependent Transmission.” <i>Proceedings of The 14th International
    Conference on Metamaterials, Photonic Crystals and Plasmonics</i>, 2024.
  short: 'H. Wetter, W. Gao, F. Rehberg, J. Wingenbach, S. Schumacher, T. Zentgraf,
    in: Proceedings of The 14th International Conference on Metamaterials, Photonic
    Crystals and Plasmonics, 2024.'
conference:
  end_date: 2024-07-19
  location: Toyama, Japan
  name: META 2024 - The 14th International Conference on Metamaterials, Photonic Crystals
    and Plasmonics
  start_date: 2024-07-16
date_created: 2025-05-23T06:30:36Z
date_updated: 2025-05-23T06:34:16Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
language:
- iso: eng
project:
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
    Konzepten zu funktionellen Strukturen'
- _id: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '164'
  grant_number: '231447078'
  name: 'TRR 142 - A09: TRR 142 - Erzeugung von Drei-Photonen-Zuständen mit On-Chip
    Pumplichtunterdrückung in topologischen Wellenleitern (A09*)'
publication: Proceedings of The 14th International Conference on Metamaterials, Photonic
  Crystals and Plasmonics
publication_identifier:
  issn:
  - 2429-1390
status: public
title: Dielectric metasurface for wave-vector variant and circular polarization dependent
  transmission
type: conference
user_id: '30525'
year: '2024'
...
---
_id: '32101'
author:
- first_name: Tobias
  full_name: Weich, Tobias
  id: '49178'
  last_name: Weich
  orcid: 0000-0002-9648-6919
- first_name: Yannick
  full_name: Guedes Bonthonneau, Yannick
  last_name: Guedes Bonthonneau
- first_name: Colin
  full_name: Guillarmou, Colin
  last_name: Guillarmou
- first_name: Joachim
  full_name: Hilgert, Joachim
  id: '220'
  last_name: Hilgert
citation:
  ama: Weich T, Guedes Bonthonneau Y, Guillarmou C, Hilgert J. Ruelle-Taylor resonances
    of Anosov actions. <i>J Europ Math Soc</i>. 2024;27(8):3085–3147. doi:<a href="https://doi.org/10.4171/JEMS/1428">https://doi.org/10.4171/JEMS/1428</a>
  apa: Weich, T., Guedes Bonthonneau, Y., Guillarmou, C., &#38; Hilgert, J. (2024).
    Ruelle-Taylor resonances of Anosov actions. <i>J. Europ. Math. Soc.</i>, <i>27</i>(8),
    3085–3147. <a href="https://doi.org/10.4171/JEMS/1428">https://doi.org/10.4171/JEMS/1428</a>
  bibtex: '@article{Weich_Guedes Bonthonneau_Guillarmou_Hilgert_2024, title={Ruelle-Taylor
    resonances of Anosov actions}, volume={27}, DOI={<a href="https://doi.org/10.4171/JEMS/1428">https://doi.org/10.4171/JEMS/1428</a>},
    number={8}, journal={J. Europ. Math. Soc.}, author={Weich, Tobias and Guedes Bonthonneau,
    Yannick and Guillarmou, Colin and Hilgert, Joachim}, year={2024}, pages={3085–3147}
    }'
  chicago: 'Weich, Tobias, Yannick Guedes Bonthonneau, Colin Guillarmou, and Joachim
    Hilgert. “Ruelle-Taylor Resonances of Anosov Actions.” <i>J. Europ. Math. Soc.</i>
    27, no. 8 (2024): 3085–3147. <a href="https://doi.org/10.4171/JEMS/1428">https://doi.org/10.4171/JEMS/1428</a>.'
  ieee: 'T. Weich, Y. Guedes Bonthonneau, C. Guillarmou, and J. Hilgert, “Ruelle-Taylor
    resonances of Anosov actions,” <i>J. Europ. Math. Soc.</i>, vol. 27, no. 8, pp.
    3085–3147, 2024, doi: <a href="https://doi.org/10.4171/JEMS/1428">https://doi.org/10.4171/JEMS/1428</a>.'
  mla: Weich, Tobias, et al. “Ruelle-Taylor Resonances of Anosov Actions.” <i>J. Europ.
    Math. Soc.</i>, vol. 27, no. 8, 2024, pp. 3085–3147, doi:<a href="https://doi.org/10.4171/JEMS/1428">https://doi.org/10.4171/JEMS/1428</a>.
  short: T. Weich, Y. Guedes Bonthonneau, C. Guillarmou, J. Hilgert, J. Europ. Math.
    Soc. 27 (2024) 3085–3147.
date_created: 2022-06-22T09:56:51Z
date_updated: 2026-02-18T10:33:34Z
ddc:
- '510'
department:
- _id: '10'
- _id: '623'
- _id: '548'
- _id: '91'
doi: https://doi.org/10.4171/JEMS/1428
file:
- access_level: open_access
  content_type: application/pdf
  creator: weich
  date_created: 2022-06-22T09:56:47Z
  date_updated: 2022-06-22T09:56:47Z
  file_id: '32102'
  file_name: 2007.14275.pdf
  file_size: 796410
  relation: main_file
file_date_updated: 2022-06-22T09:56:47Z
has_accepted_license: '1'
intvolume: '        27'
issue: '8'
language:
- iso: eng
oa: '1'
page: 3085–3147
publication: J. Europ. Math. Soc.
publication_status: published
status: public
title: Ruelle-Taylor resonances of Anosov actions
type: journal_article
user_id: '49178'
volume: 27
year: '2024'
...
---
_id: '61251'
abstract:
- lang: eng
  text: <jats:p>We theoretically investigate strategies for the deterministic creation
    of trains of time-bin entangled photons using an individual quantum emitter described
    by a Λ-type electronic system. We explicitly demonstrate the theoretical generation
    of linear cluster states with substantial numbers of entangled photonic qubits
    in full microscopic numerical simulations. The underlying scheme is based on the
    manipulation of ground state coherences through precise optical driving. One important
    finding is that the most easily accessible quality metrics, the achievable rotation
    fidelities, fall short in assessing the actual quantum correlations of the emitted
    photons in the face of losses. To address this, we explicitly calculate stabilizer
    generator expectation values as a superior gauge for the quantum properties of
    the generated many-photon state. With widespread applicability in other emitter
    and excitation–emission schemes also, our work lays the conceptual foundations
    for an in-depth practical analysis of time-bin entanglement based on full numerical
    simulations with predictive capabilities for realistic systems and setups, including
    losses and imperfections. The specific results shown in the present work illustrate
    that with controlled minimization of losses and realistic system parameters for
    quantum-dot type systems, useful linear cluster states of significant lengths
    can be generated in the calculations, discussing the possibility of scalability
    for quantum information processing endeavors.</jats:p>
article_number: '036110'
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Nikolas
  full_name: Köcher, Nikolas
  id: '79191'
  last_name: Köcher
- first_name: Nils
  full_name: Heinisch, Nils
  id: '90283'
  last_name: Heinisch
  orcid: 0009-0006-0984-2097
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic
    generation of linear photonic cluster states. <i>APL Quantum</i>. 2024;1(3). doi:<a
    href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>
  apa: Bauch, D., Köcher, N., Heinisch, N., &#38; Schumacher, S. (2024). Time-bin
    entanglement in the deterministic generation of linear photonic cluster states.
    <i>APL Quantum</i>, <i>1</i>(3), Article 036110. <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>
  bibtex: '@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement
    in the deterministic generation of linear photonic cluster states}, volume={1},
    DOI={<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>}, number={3036110},
    journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher,
    Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }'
  chicago: Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin
    Entanglement in the Deterministic Generation of Linear Photonic Cluster States.”
    <i>APL Quantum</i> 1, no. 3 (2024). <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>.
  ieee: 'D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement
    in the deterministic generation of linear photonic cluster states,” <i>APL Quantum</i>,
    vol. 1, no. 3, Art. no. 036110, 2024, doi: <a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.'
  mla: Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation
    of Linear Photonic Cluster States.” <i>APL Quantum</i>, vol. 1, no. 3, 036110,
    AIP Publishing, 2024, doi:<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.
  short: D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).
date_created: 2025-09-12T11:08:59Z
date_updated: 2025-09-12T11:11:32Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '27'
- _id: '429'
- _id: '623'
doi: 10.1063/5.0214197
intvolume: '         1'
issue: '3'
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
- _id: '56'
  name: TRR 142 - Project Area C
- _id: '173'
  name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen'
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
publication: APL Quantum
publication_identifier:
  issn:
  - 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Time-bin entanglement in the deterministic generation of linear photonic cluster
  states
type: journal_article
user_id: '16199'
volume: 1
year: '2024'
...
---
_id: '56267'
author:
- first_name: Laura
  full_name: Serino, Laura
  id: '88242'
  last_name: Serino
- first_name: Werner
  full_name: Ridder, Werner
  id: '63574'
  last_name: Ridder
- first_name: Abhinandan
  full_name: Bhattacharjee, Abhinandan
  id: '95902'
  last_name: Bhattacharjee
- first_name: Jano
  full_name: Gil López, Jano
  id: '51223'
  last_name: Gil López
- first_name: Benjamin
  full_name: Brecht, Benjamin
  id: '27150'
  last_name: Brecht
  orcid: '0000-0003-4140-0556 '
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
citation:
  ama: 'Serino L, Ridder W, Bhattacharjee A, Gil López J, Brecht B, Silberhorn C.
    Orchestrating time and color: a programmable source of high-dimensional entanglement.
    <i>Optica Quantum</i>. Published online 2024. doi:<a href="https://doi.org/10.1364/opticaq.532334">10.1364/opticaq.532334</a>'
  apa: 'Serino, L., Ridder, W., Bhattacharjee, A., Gil López, J., Brecht, B., &#38;
    Silberhorn, C. (2024). Orchestrating time and color: a programmable source of
    high-dimensional entanglement. <i>Optica Quantum</i>. <a href="https://doi.org/10.1364/opticaq.532334">https://doi.org/10.1364/opticaq.532334</a>'
  bibtex: '@article{Serino_Ridder_Bhattacharjee_Gil López_Brecht_Silberhorn_2024,
    title={Orchestrating time and color: a programmable source of high-dimensional
    entanglement}, DOI={<a href="https://doi.org/10.1364/opticaq.532334">10.1364/opticaq.532334</a>},
    journal={Optica Quantum}, publisher={Optica Publishing Group}, author={Serino,
    Laura and Ridder, Werner and Bhattacharjee, Abhinandan and Gil López, Jano and
    Brecht, Benjamin and Silberhorn, Christine}, year={2024} }'
  chicago: 'Serino, Laura, Werner Ridder, Abhinandan Bhattacharjee, Jano Gil López,
    Benjamin Brecht, and Christine Silberhorn. “Orchestrating Time and Color: A Programmable
    Source of High-Dimensional Entanglement.” <i>Optica Quantum</i>, 2024. <a href="https://doi.org/10.1364/opticaq.532334">https://doi.org/10.1364/opticaq.532334</a>.'
  ieee: 'L. Serino, W. Ridder, A. Bhattacharjee, J. Gil López, B. Brecht, and C. Silberhorn,
    “Orchestrating time and color: a programmable source of high-dimensional entanglement,”
    <i>Optica Quantum</i>, 2024, doi: <a href="https://doi.org/10.1364/opticaq.532334">10.1364/opticaq.532334</a>.'
  mla: 'Serino, Laura, et al. “Orchestrating Time and Color: A Programmable Source
    of High-Dimensional Entanglement.” <i>Optica Quantum</i>, Optica Publishing Group,
    2024, doi:<a href="https://doi.org/10.1364/opticaq.532334">10.1364/opticaq.532334</a>.'
  short: L. Serino, W. Ridder, A. Bhattacharjee, J. Gil López, B. Brecht, C. Silberhorn,
    Optica Quantum (2024).
date_created: 2024-09-27T11:46:59Z
date_updated: 2025-12-01T08:49:46Z
department:
- _id: '288'
- _id: '623'
- _id: '288'
doi: 10.1364/opticaq.532334
language:
- iso: eng
project:
- _id: '211'
  name: 'QuICHE: Quanteninformation und Quantenkommunikation mit hochdimensionaler
    Informationskodierung (QuICHE)'
publication: Optica Quantum
publication_identifier:
  issn:
  - 2837-6714
publication_status: published
publisher: Optica Publishing Group
status: public
title: 'Orchestrating time and color: a programmable source of high-dimensional entanglement'
type: journal_article
user_id: '63574'
year: '2024'
...
---
_id: '62849'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>An on-demand source of bright entangled
    photon pairs is desirable for quantum key distribution (QKD) and quantum repeaters.
    The leading candidate to generate such pairs is based on spontaneous parametric
    down-conversion (SPDC) in non-linear crystals. However, its pair extraction efficiency
    is limited to 0.1% when operating at near-unity fidelity due to multiphoton emission
    at high brightness. Quantum dots in photonic nanostructures can in principle overcome
    this limit, but the devices with high entanglement fidelity (99%) have low pair
    extraction efficiency (0.01%). Here, we show a measured peak entanglement fidelity
    of 97.5% ± 0.8% and pair extraction efficiency of 0.65% from an InAsP quantum
    dot in an InP photonic nanowire waveguide. We show that the generated oscillating
    two-photon Bell state can establish a secure key for peer-to-peer QKD. Using our
    time-resolved QKD scheme alleviates the need to remove the quantum dot energy
    splitting of the intermediate exciton states in the biexciton-exciton cascade.</jats:p>
article_number: '62'
author:
- first_name: Matteo
  full_name: Pennacchietti, Matteo
  last_name: Pennacchietti
- first_name: Brady
  full_name: Cunard, Brady
  last_name: Cunard
- first_name: Shlok
  full_name: Nahar, Shlok
  last_name: Nahar
- first_name: Mohd
  full_name: Zeeshan, Mohd
  last_name: Zeeshan
- first_name: Sayan
  full_name: Gangopadhyay, Sayan
  last_name: Gangopadhyay
- first_name: Philip J.
  full_name: Poole, Philip J.
  last_name: Poole
- first_name: Dan
  full_name: Dalacu, Dan
  last_name: Dalacu
- first_name: Andreas
  full_name: Fognini, Andreas
  last_name: Fognini
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
- first_name: Val
  full_name: Zwiller, Val
  last_name: Zwiller
- first_name: Thomas
  full_name: Jennewein, Thomas
  last_name: Jennewein
- first_name: Norbert
  full_name: Lütkenhaus, Norbert
  last_name: Lütkenhaus
- first_name: Michael E.
  full_name: Reimer, Michael E.
  last_name: Reimer
citation:
  ama: Pennacchietti M, Cunard B, Nahar S, et al. Oscillating photonic Bell state
    from a semiconductor quantum dot for quantum key distribution. <i>Communications
    Physics</i>. 2024;7(1). doi:<a href="https://doi.org/10.1038/s42005-024-01547-3">10.1038/s42005-024-01547-3</a>
  apa: Pennacchietti, M., Cunard, B., Nahar, S., Zeeshan, M., Gangopadhyay, S., Poole,
    P. J., Dalacu, D., Fognini, A., Jöns, K., Zwiller, V., Jennewein, T., Lütkenhaus,
    N., &#38; Reimer, M. E. (2024). Oscillating photonic Bell state from a semiconductor
    quantum dot for quantum key distribution. <i>Communications Physics</i>, <i>7</i>(1),
    Article 62. <a href="https://doi.org/10.1038/s42005-024-01547-3">https://doi.org/10.1038/s42005-024-01547-3</a>
  bibtex: '@article{Pennacchietti_Cunard_Nahar_Zeeshan_Gangopadhyay_Poole_Dalacu_Fognini_Jöns_Zwiller_et
    al._2024, title={Oscillating photonic Bell state from a semiconductor quantum
    dot for quantum key distribution}, volume={7}, DOI={<a href="https://doi.org/10.1038/s42005-024-01547-3">10.1038/s42005-024-01547-3</a>},
    number={162}, journal={Communications Physics}, publisher={Springer Science and
    Business Media LLC}, author={Pennacchietti, Matteo and Cunard, Brady and Nahar,
    Shlok and Zeeshan, Mohd and Gangopadhyay, Sayan and Poole, Philip J. and Dalacu,
    Dan and Fognini, Andreas and Jöns, Klaus and Zwiller, Val and et al.}, year={2024}
    }'
  chicago: Pennacchietti, Matteo, Brady Cunard, Shlok Nahar, Mohd Zeeshan, Sayan Gangopadhyay,
    Philip J. Poole, Dan Dalacu, et al. “Oscillating Photonic Bell State from a Semiconductor
    Quantum Dot for Quantum Key Distribution.” <i>Communications Physics</i> 7, no.
    1 (2024). <a href="https://doi.org/10.1038/s42005-024-01547-3">https://doi.org/10.1038/s42005-024-01547-3</a>.
  ieee: 'M. Pennacchietti <i>et al.</i>, “Oscillating photonic Bell state from a semiconductor
    quantum dot for quantum key distribution,” <i>Communications Physics</i>, vol.
    7, no. 1, Art. no. 62, 2024, doi: <a href="https://doi.org/10.1038/s42005-024-01547-3">10.1038/s42005-024-01547-3</a>.'
  mla: Pennacchietti, Matteo, et al. “Oscillating Photonic Bell State from a Semiconductor
    Quantum Dot for Quantum Key Distribution.” <i>Communications Physics</i>, vol.
    7, no. 1, 62, Springer Science and Business Media LLC, 2024, doi:<a href="https://doi.org/10.1038/s42005-024-01547-3">10.1038/s42005-024-01547-3</a>.
  short: M. Pennacchietti, B. Cunard, S. Nahar, M. Zeeshan, S. Gangopadhyay, P.J.
    Poole, D. Dalacu, A. Fognini, K. Jöns, V. Zwiller, T. Jennewein, N. Lütkenhaus,
    M.E. Reimer, Communications Physics 7 (2024).
date_created: 2025-12-04T12:03:50Z
date_updated: 2025-12-04T12:23:54Z
department:
- _id: '623'
doi: 10.1038/s42005-024-01547-3
intvolume: '         7'
issue: '1'
language:
- iso: eng
publication: Communications Physics
publication_identifier:
  issn:
  - 2399-3650
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Oscillating photonic Bell state from a semiconductor quantum dot for quantum
  key distribution
type: journal_article
user_id: '48188'
volume: 7
year: '2024'
...
---
_id: '62852'
author:
- first_name: Samuel
  full_name: Gyger, Samuel
  last_name: Gyger
- first_name: Max
  full_name: Tao, Max
  last_name: Tao
- first_name: Marco
  full_name: Colangelo, Marco
  last_name: Colangelo
- first_name: Ian
  full_name: Christen, Ian
  last_name: Christen
- first_name: Hugo
  full_name: Larocque, Hugo
  last_name: Larocque
- first_name: Julian
  full_name: Zichi, Julian
  last_name: Zichi
- first_name: Lucas
  full_name: Schweickert, Lucas
  last_name: Schweickert
- first_name: Ali
  full_name: Elshaari, Ali
  last_name: Elshaari
- first_name: Stephan
  full_name: Steinhauer, Stephan
  last_name: Steinhauer
- first_name: Saimon
  full_name: Covre da Silva, Saimon
  last_name: Covre da Silva
- first_name: Armando
  full_name: Rastelli, Armando
  last_name: Rastelli
- first_name: Hamed
  full_name: Sattari, Hamed
  last_name: Sattari
- first_name: Gregory
  full_name: Chong, Gregory
  last_name: Chong
- first_name: Yves
  full_name: Pétremand, Yves
  last_name: Pétremand
- first_name: Ivan
  full_name: Prieto, Ivan
  last_name: Prieto
- first_name: Yang
  full_name: Yu, Yang
  last_name: Yu
- first_name: Amir
  full_name: Ghadimi, Amir
  last_name: Ghadimi
- first_name: Dirk
  full_name: Englund, Dirk
  last_name: Englund
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
- first_name: Val
  full_name: Zwiller, Val
  last_name: Zwiller
- first_name: Carlos
  full_name: Errando Herranz, Carlos
  last_name: Errando Herranz
citation:
  ama: 'Gyger S, Tao M, Colangelo M, et al. Integrating superconducting single-photon
    detectors into active photonic circuits. In: Hemmer PR, Migdall AL, eds. <i>Quantum
    Computing, Communication, and Simulation IV</i>. SPIE; 2024. doi:<a href="https://doi.org/10.1117/12.3009736">10.1117/12.3009736</a>'
  apa: Gyger, S., Tao, M., Colangelo, M., Christen, I., Larocque, H., Zichi, J., Schweickert,
    L., Elshaari, A., Steinhauer, S., Covre da Silva, S., Rastelli, A., Sattari, H.,
    Chong, G., Pétremand, Y., Prieto, I., Yu, Y., Ghadimi, A., Englund, D., Jöns,
    K., … Errando Herranz, C. (2024). Integrating superconducting single-photon detectors
    into active photonic circuits. In P. R. Hemmer &#38; A. L. Migdall (Eds.), <i>Quantum
    Computing, Communication, and Simulation IV</i>. SPIE. <a href="https://doi.org/10.1117/12.3009736">https://doi.org/10.1117/12.3009736</a>
  bibtex: '@inproceedings{Gyger_Tao_Colangelo_Christen_Larocque_Zichi_Schweickert_Elshaari_Steinhauer_Covre
    da Silva_et al._2024, title={Integrating superconducting single-photon detectors
    into active photonic circuits}, DOI={<a href="https://doi.org/10.1117/12.3009736">10.1117/12.3009736</a>},
    booktitle={Quantum Computing, Communication, and Simulation IV}, publisher={SPIE},
    author={Gyger, Samuel and Tao, Max and Colangelo, Marco and Christen, Ian and
    Larocque, Hugo and Zichi, Julian and Schweickert, Lucas and Elshaari, Ali and
    Steinhauer, Stephan and Covre da Silva, Saimon and et al.}, editor={Hemmer, Philip
    R. and Migdall, Alan L.}, year={2024} }'
  chicago: Gyger, Samuel, Max Tao, Marco Colangelo, Ian Christen, Hugo Larocque, Julian
    Zichi, Lucas Schweickert, et al. “Integrating Superconducting Single-Photon Detectors
    into Active Photonic Circuits.” In <i>Quantum Computing, Communication, and Simulation
    IV</i>, edited by Philip R. Hemmer and Alan L. Migdall. SPIE, 2024. <a href="https://doi.org/10.1117/12.3009736">https://doi.org/10.1117/12.3009736</a>.
  ieee: 'S. Gyger <i>et al.</i>, “Integrating superconducting single-photon detectors
    into active photonic circuits,” in <i>Quantum Computing, Communication, and Simulation
    IV</i>, 2024, doi: <a href="https://doi.org/10.1117/12.3009736">10.1117/12.3009736</a>.'
  mla: Gyger, Samuel, et al. “Integrating Superconducting Single-Photon Detectors
    into Active Photonic Circuits.” <i>Quantum Computing, Communication, and Simulation
    IV</i>, edited by Philip R. Hemmer and Alan L. Migdall, SPIE, 2024, doi:<a href="https://doi.org/10.1117/12.3009736">10.1117/12.3009736</a>.
  short: 'S. Gyger, M. Tao, M. Colangelo, I. Christen, H. Larocque, J. Zichi, L. Schweickert,
    A. Elshaari, S. Steinhauer, S. Covre da Silva, A. Rastelli, H. Sattari, G. Chong,
    Y. Pétremand, I. Prieto, Y. Yu, A. Ghadimi, D. Englund, K. Jöns, V. Zwiller, C.
    Errando Herranz, in: P.R. Hemmer, A.L. Migdall (Eds.), Quantum Computing, Communication,
    and Simulation IV, SPIE, 2024.'
date_created: 2025-12-04T12:07:37Z
date_updated: 2025-12-04T12:24:04Z
department:
- _id: '623'
doi: 10.1117/12.3009736
editor:
- first_name: Philip R.
  full_name: Hemmer, Philip R.
  last_name: Hemmer
- first_name: Alan L.
  full_name: Migdall, Alan L.
  last_name: Migdall
language:
- iso: eng
publication: Quantum Computing, Communication, and Simulation IV
publication_status: published
publisher: SPIE
status: public
title: Integrating superconducting single-photon detectors into active photonic circuits
type: conference
user_id: '48188'
year: '2024'
...
---
_id: '62850'
author:
- first_name: Telsche
  full_name: Mikitta, Telsche
  last_name: Mikitta
- first_name: Ana
  full_name: Cutuk, Ana
  last_name: Cutuk
- first_name: Michael
  full_name: Jetter, Michael
  last_name: Jetter
- first_name: Peter
  full_name: Michler, Peter
  last_name: Michler
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
- first_name: Hermann
  full_name: Kahle, Hermann
  last_name: Kahle
citation:
  ama: 'Mikitta T, Cutuk A, Jetter M, Michler P, Jöns K, Kahle H. Membrane external-cavity
    surface-emitting lasers (MECSELs) optimized for double-side-pumping: a first fundamental
    single-side pumping characterization. In: Keller U, ed. <i>Vertical External Cavity
    Surface Emitting Lasers (VECSELs) XIII</i>. SPIE; 2024. doi:<a href="https://doi.org/10.1117/12.3002481">10.1117/12.3002481</a>'
  apa: 'Mikitta, T., Cutuk, A., Jetter, M., Michler, P., Jöns, K., &#38; Kahle, H.
    (2024). Membrane external-cavity surface-emitting lasers (MECSELs) optimized for
    double-side-pumping: a first fundamental single-side pumping characterization.
    In U. Keller (Ed.), <i>Vertical External Cavity Surface Emitting Lasers (VECSELs)
    XIII</i>. SPIE. <a href="https://doi.org/10.1117/12.3002481">https://doi.org/10.1117/12.3002481</a>'
  bibtex: '@inproceedings{Mikitta_Cutuk_Jetter_Michler_Jöns_Kahle_2024, title={Membrane
    external-cavity surface-emitting lasers (MECSELs) optimized for double-side-pumping:
    a first fundamental single-side pumping characterization}, DOI={<a href="https://doi.org/10.1117/12.3002481">10.1117/12.3002481</a>},
    booktitle={Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII}, publisher={SPIE},
    author={Mikitta, Telsche and Cutuk, Ana and Jetter, Michael and Michler, Peter
    and Jöns, Klaus and Kahle, Hermann}, editor={Keller, Ursula}, year={2024} }'
  chicago: 'Mikitta, Telsche, Ana Cutuk, Michael Jetter, Peter Michler, Klaus Jöns,
    and Hermann Kahle. “Membrane External-Cavity Surface-Emitting Lasers (MECSELs)
    Optimized for Double-Side-Pumping: A First Fundamental Single-Side Pumping Characterization.”
    In <i>Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII</i>, edited
    by Ursula Keller. SPIE, 2024. <a href="https://doi.org/10.1117/12.3002481">https://doi.org/10.1117/12.3002481</a>.'
  ieee: 'T. Mikitta, A. Cutuk, M. Jetter, P. Michler, K. Jöns, and H. Kahle, “Membrane
    external-cavity surface-emitting lasers (MECSELs) optimized for double-side-pumping:
    a first fundamental single-side pumping characterization,” in <i>Vertical External
    Cavity Surface Emitting Lasers (VECSELs) XIII</i>, 2024, doi: <a href="https://doi.org/10.1117/12.3002481">10.1117/12.3002481</a>.'
  mla: 'Mikitta, Telsche, et al. “Membrane External-Cavity Surface-Emitting Lasers
    (MECSELs) Optimized for Double-Side-Pumping: A First Fundamental Single-Side Pumping
    Characterization.” <i>Vertical External Cavity Surface Emitting Lasers (VECSELs)
    XIII</i>, edited by Ursula Keller, SPIE, 2024, doi:<a href="https://doi.org/10.1117/12.3002481">10.1117/12.3002481</a>.'
  short: 'T. Mikitta, A. Cutuk, M. Jetter, P. Michler, K. Jöns, H. Kahle, in: U. Keller
    (Ed.), Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII, SPIE,
    2024.'
date_created: 2025-12-04T12:06:23Z
date_updated: 2025-12-04T12:24:00Z
department:
- _id: '623'
doi: 10.1117/12.3002481
editor:
- first_name: Ursula
  full_name: Keller, Ursula
  last_name: Keller
language:
- iso: eng
publication: Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII
publication_status: published
publisher: SPIE
status: public
title: 'Membrane external-cavity surface-emitting lasers (MECSELs) optimized for double-side-pumping:
  a first fundamental single-side pumping characterization'
type: conference
user_id: '48188'
year: '2024'
...
---
_id: '52876'
article_number: L012043
author:
- first_name: Christian
  full_name: Arends, Christian
  id: '43994'
  last_name: Arends
- first_name: Lasse Lennart
  full_name: Wolf, Lasse Lennart
  id: '45027'
  last_name: Wolf
  orcid: 0000-0001-8893-2045
- first_name: Jasmin
  full_name: Meinecke, Jasmin
  last_name: Meinecke
- first_name: Sonja
  full_name: Barkhofen, Sonja
  id: '48188'
  last_name: Barkhofen
- first_name: Tobias
  full_name: Weich, Tobias
  id: '49178'
  last_name: Weich
  orcid: 0000-0002-9648-6919
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
citation:
  ama: Arends C, Wolf LL, Meinecke J, Barkhofen S, Weich T, Bartley T. Decomposing
    large unitaries into multimode devices of arbitrary size. <i>Physical Review Research</i>.
    2024;6(1). doi:<a href="https://doi.org/10.1103/physrevresearch.6.l012043">10.1103/physrevresearch.6.l012043</a>
  apa: Arends, C., Wolf, L. L., Meinecke, J., Barkhofen, S., Weich, T., &#38; Bartley,
    T. (2024). Decomposing large unitaries into multimode devices of arbitrary size.
    <i>Physical Review Research</i>, <i>6</i>(1), Article L012043. <a href="https://doi.org/10.1103/physrevresearch.6.l012043">https://doi.org/10.1103/physrevresearch.6.l012043</a>
  bibtex: '@article{Arends_Wolf_Meinecke_Barkhofen_Weich_Bartley_2024, title={Decomposing
    large unitaries into multimode devices of arbitrary size}, volume={6}, DOI={<a
    href="https://doi.org/10.1103/physrevresearch.6.l012043">10.1103/physrevresearch.6.l012043</a>},
    number={1L012043}, journal={Physical Review Research}, publisher={American Physical
    Society (APS)}, author={Arends, Christian and Wolf, Lasse Lennart and Meinecke,
    Jasmin and Barkhofen, Sonja and Weich, Tobias and Bartley, Tim}, year={2024} }'
  chicago: Arends, Christian, Lasse Lennart Wolf, Jasmin Meinecke, Sonja Barkhofen,
    Tobias Weich, and Tim Bartley. “Decomposing Large Unitaries into Multimode Devices
    of Arbitrary Size.” <i>Physical Review Research</i> 6, no. 1 (2024). <a href="https://doi.org/10.1103/physrevresearch.6.l012043">https://doi.org/10.1103/physrevresearch.6.l012043</a>.
  ieee: 'C. Arends, L. L. Wolf, J. Meinecke, S. Barkhofen, T. Weich, and T. Bartley,
    “Decomposing large unitaries into multimode devices of arbitrary size,” <i>Physical
    Review Research</i>, vol. 6, no. 1, Art. no. L012043, 2024, doi: <a href="https://doi.org/10.1103/physrevresearch.6.l012043">10.1103/physrevresearch.6.l012043</a>.'
  mla: Arends, Christian, et al. “Decomposing Large Unitaries into Multimode Devices
    of Arbitrary Size.” <i>Physical Review Research</i>, vol. 6, no. 1, L012043, American
    Physical Society (APS), 2024, doi:<a href="https://doi.org/10.1103/physrevresearch.6.l012043">10.1103/physrevresearch.6.l012043</a>.
  short: C. Arends, L.L. Wolf, J. Meinecke, S. Barkhofen, T. Weich, T. Bartley, Physical
    Review Research 6 (2024).
date_created: 2024-03-26T08:52:05Z
date_updated: 2025-12-04T13:38:49Z
department:
- _id: '623'
- _id: '15'
doi: 10.1103/physrevresearch.6.l012043
intvolume: '         6'
issue: '1'
keyword:
- General Physics and Astronomy
language:
- iso: eng
publication: Physical Review Research
publication_identifier:
  issn:
  - 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Decomposing large unitaries into multimode devices of arbitrary size
type: journal_article
user_id: '48188'
volume: 6
year: '2024'
...
---
_id: '62868'
abstract:
- lang: eng
  text: <jats:p>We theoretically investigate strategies for the deterministic creation
    of trains of time-bin entangled photons using an individual quantum emitter described
    by a Λ-type electronic system. We explicitly demonstrate the theoretical generation
    of linear cluster states with substantial numbers of entangled photonic qubits
    in full microscopic numerical simulations. The underlying scheme is based on the
    manipulation of ground state coherences through precise optical driving. One important
    finding is that the most easily accessible quality metrics, the achievable rotation
    fidelities, fall short in assessing the actual quantum correlations of the emitted
    photons in the face of losses. To address this, we explicitly calculate stabilizer
    generator expectation values as a superior gauge for the quantum properties of
    the generated many-photon state. With widespread applicability in other emitter
    and excitation–emission schemes also, our work lays the conceptual foundations
    for an in-depth practical analysis of time-bin entanglement based on full numerical
    simulations with predictive capabilities for realistic systems and setups, including
    losses and imperfections. The specific results shown in the present work illustrate
    that with controlled minimization of losses and realistic system parameters for
    quantum-dot type systems, useful linear cluster states of significant lengths
    can be generated in the calculations, discussing the possibility of scalability
    for quantum information processing endeavors.</jats:p>
article_number: '036110'
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Nikolas
  full_name: Köcher, Nikolas
  id: '79191'
  last_name: Köcher
- first_name: Nils
  full_name: Heinisch, Nils
  id: '90283'
  last_name: Heinisch
  orcid: 0009-0006-0984-2097
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic
    generation of linear photonic cluster states. <i>APL Quantum</i>. 2024;1(3). doi:<a
    href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>
  apa: Bauch, D., Köcher, N., Heinisch, N., &#38; Schumacher, S. (2024). Time-bin
    entanglement in the deterministic generation of linear photonic cluster states.
    <i>APL Quantum</i>, <i>1</i>(3), Article 036110. <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>
  bibtex: '@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement
    in the deterministic generation of linear photonic cluster states}, volume={1},
    DOI={<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>}, number={3036110},
    journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher,
    Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }'
  chicago: Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin
    Entanglement in the Deterministic Generation of Linear Photonic Cluster States.”
    <i>APL Quantum</i> 1, no. 3 (2024). <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>.
  ieee: 'D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement
    in the deterministic generation of linear photonic cluster states,” <i>APL Quantum</i>,
    vol. 1, no. 3, Art. no. 036110, 2024, doi: <a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.'
  mla: Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation
    of Linear Photonic Cluster States.” <i>APL Quantum</i>, vol. 1, no. 3, 036110,
    AIP Publishing, 2024, doi:<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.
  short: D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).
date_created: 2025-12-04T12:35:53Z
date_updated: 2025-12-05T13:55:00Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '27'
- _id: '429'
- _id: '230'
- _id: '623'
doi: 10.1063/5.0214197
intvolume: '         1'
issue: '3'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '173'
  name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen'
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
- _id: '56'
  name: TRR 142 - Project Area C
publication: APL Quantum
publication_identifier:
  issn:
  - 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Time-bin entanglement in the deterministic generation of linear photonic cluster
  states
type: journal_article
user_id: '16199'
volume: 1
year: '2024'
...
---
_id: '62853'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>Developing
    coherent excitation methods for quantum emitters ensuring high brightness, optimal
    single‐photon purity and indistinguishability of the emitted photons has been
    a key challenge in the past years. While various methods have been proposed and
    explored, they all have specific advantages and disadvantages. This study investigates
    the dynamics of the recent swing‐up scheme as an excitation method for a two‐level
    system and its performance in single‐photon generation. By applying two far red‐detuned
    laser pulses, the two‐level system can be prepared in the excited state with near‐unity
    fidelity. The successful operation and coherent character of this technique are
    demonstrated using a semiconductor quantum dot (QD). Moreover, the multi‐dimensional
    parameter space of the two laser pulses is explored to analyze its impact on excitation
    fidelity. Finally, the performance of the scheme as an excitation method for generating
    high‐quality single photons is analyzed. The swing‐up scheme itself proves effective,
    exhibiting nearly perfect single‐photon purity, while the observed indistinguishability
    in the studied sample is limited by the influence of the inevitable high excitation
    powers on the semiconductor environment of the quantum dot.</jats:p>"
article_number: '2300359'
author:
- first_name: Katarina
  full_name: Boos, Katarina
  last_name: Boos
- first_name: Friedrich
  full_name: Sbresny, Friedrich
  last_name: Sbresny
- first_name: Sang Kyu
  full_name: Kim, Sang Kyu
  last_name: Kim
- first_name: Malte
  full_name: Kremser, Malte
  last_name: Kremser
- first_name: Hubert
  full_name: Riedl, Hubert
  last_name: Riedl
- first_name: Frederik W.
  full_name: Bopp, Frederik W.
  last_name: Bopp
- first_name: William
  full_name: Rauhaus, William
  last_name: Rauhaus
- first_name: Bianca
  full_name: Scaparra, Bianca
  last_name: Scaparra
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
- first_name: Jonathan J.
  full_name: Finley, Jonathan J.
  last_name: Finley
- first_name: Kai
  full_name: Müller, Kai
  last_name: Müller
- first_name: Lukas
  full_name: Hanschke, Lukas
  last_name: Hanschke
citation:
  ama: Boos K, Sbresny F, Kim SK, et al. Coherent Swing‐Up Excitation for Semiconductor
    Quantum Dots. <i>Advanced Quantum Technologies</i>. 2024;7(4). doi:<a href="https://doi.org/10.1002/qute.202300359">10.1002/qute.202300359</a>
  apa: Boos, K., Sbresny, F., Kim, S. K., Kremser, M., Riedl, H., Bopp, F. W., Rauhaus,
    W., Scaparra, B., Jöns, K., Finley, J. J., Müller, K., &#38; Hanschke, L. (2024).
    Coherent Swing‐Up Excitation for Semiconductor Quantum Dots. <i>Advanced Quantum
    Technologies</i>, <i>7</i>(4), Article 2300359. <a href="https://doi.org/10.1002/qute.202300359">https://doi.org/10.1002/qute.202300359</a>
  bibtex: '@article{Boos_Sbresny_Kim_Kremser_Riedl_Bopp_Rauhaus_Scaparra_Jöns_Finley_et
    al._2024, title={Coherent Swing‐Up Excitation for Semiconductor Quantum Dots},
    volume={7}, DOI={<a href="https://doi.org/10.1002/qute.202300359">10.1002/qute.202300359</a>},
    number={42300359}, journal={Advanced Quantum Technologies}, publisher={Wiley},
    author={Boos, Katarina and Sbresny, Friedrich and Kim, Sang Kyu and Kremser, Malte
    and Riedl, Hubert and Bopp, Frederik W. and Rauhaus, William and Scaparra, Bianca
    and Jöns, Klaus and Finley, Jonathan J. and et al.}, year={2024} }'
  chicago: Boos, Katarina, Friedrich Sbresny, Sang Kyu Kim, Malte Kremser, Hubert
    Riedl, Frederik W. Bopp, William Rauhaus, et al. “Coherent Swing‐Up Excitation
    for Semiconductor Quantum Dots.” <i>Advanced Quantum Technologies</i> 7, no. 4
    (2024). <a href="https://doi.org/10.1002/qute.202300359">https://doi.org/10.1002/qute.202300359</a>.
  ieee: 'K. Boos <i>et al.</i>, “Coherent Swing‐Up Excitation for Semiconductor Quantum
    Dots,” <i>Advanced Quantum Technologies</i>, vol. 7, no. 4, Art. no. 2300359,
    2024, doi: <a href="https://doi.org/10.1002/qute.202300359">10.1002/qute.202300359</a>.'
  mla: Boos, Katarina, et al. “Coherent Swing‐Up Excitation for Semiconductor Quantum
    Dots.” <i>Advanced Quantum Technologies</i>, vol. 7, no. 4, 2300359, Wiley, 2024,
    doi:<a href="https://doi.org/10.1002/qute.202300359">10.1002/qute.202300359</a>.
  short: K. Boos, F. Sbresny, S.K. Kim, M. Kremser, H. Riedl, F.W. Bopp, W. Rauhaus,
    B. Scaparra, K. Jöns, J.J. Finley, K. Müller, L. Hanschke, Advanced Quantum Technologies
    7 (2024).
date_created: 2025-12-04T12:08:46Z
date_updated: 2025-12-11T13:00:06Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
doi: 10.1002/qute.202300359
intvolume: '         7'
issue: '4'
language:
- iso: eng
publication: Advanced Quantum Technologies
publication_identifier:
  issn:
  - 2511-9044
  - 2511-9044
publication_status: published
publisher: Wiley
status: public
title: Coherent Swing‐Up Excitation for Semiconductor Quantum Dots
type: journal_article
user_id: '48188'
volume: 7
year: '2024'
...
---
_id: '62858'
abstract:
- lang: eng
  text: Phonons in solid-state quantum emitters play a crucial role in their performance
    as photon sources in quantum technology. For resonant driving, phonons dampen
    the Rabi oscillations resulting in reduced preparation fidelities. The phonon
    spectral density, which quantifies the strength of the carrier-phonon interaction,
    is non-monotonous as a function of energy. As one of the most prominent consequences,
    this leads to the reappearance of Rabi rotations for increasing pulse power, which
    was theoretically predicted in Phys. Rev. Lett. 98, 227403 (2007). In this paper
    we present the experimental demonstration of the reappearance of Rabi rotations.
author:
- first_name: L.
  full_name: Hanschke, L.
  last_name: Hanschke
- first_name: T. K.
  full_name: Bracht, T. K.
  last_name: Bracht
- first_name: E.
  full_name: Schöll, E.
  last_name: Schöll
- first_name: David
  full_name: Bauch, David
  id: '44172'
  last_name: Bauch
- first_name: Eva
  full_name: Berger, Eva
  last_name: Berger
- first_name: Patricia
  full_name: Kallert, Patricia
  last_name: Kallert
- first_name: M.
  full_name: Peter, M.
  last_name: Peter
- first_name: A. J.
  full_name: Garcia, A. J.
  last_name: Garcia
- first_name: S. F. Covre da
  full_name: Silva, S. F. Covre da
  last_name: Silva
- first_name: S.
  full_name: Manna, S.
  last_name: Manna
- first_name: A.
  full_name: Rastelli, A.
  last_name: Rastelli
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: D. E.
  full_name: Reiter, D. E.
  last_name: Reiter
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
citation:
  ama: Hanschke L, Bracht TK, Schöll E, et al. Experimental measurement of the reappearance
    of Rabi rotations in semiconductor quantum dots. <i>arXiv:240919167</i>. Published
    online 2024.
  apa: Hanschke, L., Bracht, T. K., Schöll, E., Bauch, D., Berger, E., Kallert, P.,
    Peter, M., Garcia, A. J., Silva, S. F. C. da, Manna, S., Rastelli, A., Schumacher,
    S., Reiter, D. E., &#38; Jöns, K. (2024). Experimental measurement of the reappearance
    of Rabi rotations in semiconductor quantum dots. In <i>arXiv:2409.19167</i>.
  bibtex: '@article{Hanschke_Bracht_Schöll_Bauch_Berger_Kallert_Peter_Garcia_Silva_Manna_et
    al._2024, title={Experimental measurement of the reappearance of Rabi rotations
    in semiconductor quantum dots}, journal={arXiv:2409.19167}, author={Hanschke,
    L. and Bracht, T. K. and Schöll, E. and Bauch, David and Berger, Eva and Kallert,
    Patricia and Peter, M. and Garcia, A. J. and Silva, S. F. Covre da and Manna,
    S. and et al.}, year={2024} }'
  chicago: Hanschke, L., T. K. Bracht, E. Schöll, David Bauch, Eva Berger, Patricia
    Kallert, M. Peter, et al. “Experimental Measurement of the Reappearance of Rabi
    Rotations in Semiconductor Quantum Dots.” <i>ArXiv:2409.19167</i>, 2024.
  ieee: L. Hanschke <i>et al.</i>, “Experimental measurement of the reappearance of
    Rabi rotations in semiconductor quantum dots,” <i>arXiv:2409.19167</i>. 2024.
  mla: Hanschke, L., et al. “Experimental Measurement of the Reappearance of Rabi
    Rotations in Semiconductor Quantum Dots.” <i>ArXiv:2409.19167</i>, 2024.
  short: L. Hanschke, T.K. Bracht, E. Schöll, D. Bauch, E. Berger, P. Kallert, M.
    Peter, A.J. Garcia, S.F.C. da Silva, S. Manna, A. Rastelli, S. Schumacher, D.E.
    Reiter, K. Jöns, ArXiv:2409.19167 (2024).
date_created: 2025-12-04T12:16:58Z
date_updated: 2025-12-11T12:54:41Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
external_id:
  arxiv:
  - '2409.19167'
language:
- iso: eng
publication: arXiv:2409.19167
status: public
title: Experimental measurement of the reappearance of Rabi rotations in semiconductor
  quantum dots
type: preprint
user_id: '48188'
year: '2024'
...
---
_id: '62856'
abstract:
- lang: eng
  text: On-chip emitters that can generate single and entangled photons are essential
    building blocks for developing photonic quantum information processing technologies
    in a scalable fashion. Semiconductor quantum dots (QDs) are attractive candidates
    that emit high-quality quantum states of light on demand, however at a rate limited
    by their spontaneous radiative lifetime. In this study, we utilize the Purcell
    effect to demonstrate up to a 38-fold enhancement in the emission rate of InAs
    QDs by coupling them to metal-clad GaAs nanopillars. These cavities, featuring
    a sub-wavelength mode volume of 4.5x10-4 (λ/n)3 and low quality factor of 62,
    enable Purcell-enhanced single-photon emission across a large bandwidth of 15
    nm. The broadband nature of the cavity eliminates the need for implementing tuning
    mechanisms typically required to achieve QD-cavity resonance, thus relaxing fabrication
    constraints. Ultimately, this QD-cavity architecture represents a significant
    stride towards developing solid-state quantum emitters generating near-ideal single-photon
    states at GHz-level repetition rates.
author:
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
citation:
  ama: Jöns K. Purcell-enhanced single-photon emission from InAs/GaAs quantum dots
    coupled to broadband cylindrical nanocavities. Published online 2024.
  apa: Jöns, K. (2024). <i>Purcell-enhanced single-photon emission from InAs/GaAs
    quantum dots coupled to broadband cylindrical nanocavities</i>.
  bibtex: '@article{Jöns_2024, title={Purcell-enhanced single-photon emission from
    InAs/GaAs quantum dots coupled to broadband cylindrical nanocavities}, author={Jöns,
    Klaus}, year={2024} }'
  chicago: Jöns, Klaus. “Purcell-Enhanced Single-Photon Emission from InAs/GaAs Quantum
    Dots Coupled to Broadband Cylindrical Nanocavities,” 2024.
  ieee: K. Jöns, “Purcell-enhanced single-photon emission from InAs/GaAs quantum dots
    coupled to broadband cylindrical nanocavities.” 2024.
  mla: Jöns, Klaus. <i>Purcell-Enhanced Single-Photon Emission from InAs/GaAs Quantum
    Dots Coupled to Broadband Cylindrical Nanocavities</i>. 2024.
  short: K. Jöns, (2024).
date_created: 2025-12-04T12:13:39Z
date_updated: 2025-12-11T12:58:57Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
language:
- iso: eng
status: public
title: Purcell-enhanced single-photon emission from InAs/GaAs quantum dots coupled
  to broadband cylindrical nanocavities
type: preprint
user_id: '48188'
year: '2024'
...
