---
_id: '27531'
abstract:
- lang: eng
  text: "The Quantum Singular Value Transformation (QSVT) is a recent technique that\r\ngives
    a unified framework to describe most quantum algorithms discovered so\r\nfar,
    and may lead to the development of novel quantum algorithms. In this paper\r\nwe
    investigate the hardness of classically simulating the QSVT. A recent result\r\nby
    Chia, Gily\\'en, Li, Lin, Tang and Wang (STOC 2020) showed that the QSVT can\r\nbe
    efficiently \"dequantized\" for low-rank matrices, and discussed its\r\nimplication
    to quantum machine learning. In this work, motivated by\r\nestablishing the superiority
    of quantum algorithms for quantum chemistry and\r\nmaking progress on the quantum
    PCP conjecture, we focus on the other main class\r\nof matrices considered in
    applications of the QSVT, sparse matrices.\r\n  We first show how to efficiently
    \"dequantize\", with arbitrarily small\r\nconstant precision, the QSVT associated
    with a low-degree polynomial. We apply\r\nthis technique to design classical algorithms
    that estimate, with constant\r\nprecision, the singular values of a sparse matrix.
    We show in particular that a\r\ncentral computational problem considered by quantum
    algorithms for quantum\r\nchemistry (estimating the ground state energy of a local
    Hamiltonian when\r\ngiven, as an additional input, a state sufficiently close
    to the ground state)\r\ncan be solved efficiently with constant precision on a
    classical computer. As a\r\ncomplementary result, we prove that with inverse-polynomial
    precision, the same\r\nproblem becomes BQP-complete. This gives theoretical evidence
    for the\r\nsuperiority of quantum algorithms for chemistry, and strongly suggests
    that\r\nsaid superiority stems from the improved precision achievable in the quantum\r\nsetting.
    We also discuss how this dequantization technique may help make\r\nprogress on
    the central quantum PCP conjecture."
author:
- first_name: Sevag
  full_name: Gharibian, Sevag
  id: '71541'
  last_name: Gharibian
  orcid: 0000-0002-9992-3379
- first_name: François Le
  full_name: Gall, François Le
  last_name: Gall
citation:
  ama: 'Gharibian S, Gall FL. Dequantizing the Quantum Singular Value Transformation:
    Hardness and  Applications to Quantum Chemistry and the Quantum PCP Conjecture.
    In: <i>Proceedings of the 54th ACM Symposium on Theory of Computing (STOC)</i>.
    ; 2022:19-32.'
  apa: 'Gharibian, S., &#38; Gall, F. L. (2022). Dequantizing the Quantum Singular
    Value Transformation: Hardness and  Applications to Quantum Chemistry and the
    Quantum PCP Conjecture. <i>Proceedings of the 54th ACM Symposium on Theory of
    Computing (STOC)</i>, 19–32.'
  bibtex: '@inproceedings{Gharibian_Gall_2022, title={Dequantizing the Quantum Singular
    Value Transformation: Hardness and  Applications to Quantum Chemistry and the
    Quantum PCP Conjecture}, booktitle={Proceedings of the 54th ACM Symposium on Theory
    of Computing (STOC)}, author={Gharibian, Sevag and Gall, François Le}, year={2022},
    pages={19–32} }'
  chicago: 'Gharibian, Sevag, and François Le Gall. “Dequantizing the Quantum Singular
    Value Transformation: Hardness and  Applications to Quantum Chemistry and the
    Quantum PCP Conjecture.” In <i>Proceedings of the 54th ACM Symposium on Theory
    of Computing (STOC)</i>, 19–32, 2022.'
  ieee: 'S. Gharibian and F. L. Gall, “Dequantizing the Quantum Singular Value Transformation:
    Hardness and  Applications to Quantum Chemistry and the Quantum PCP Conjecture,”
    in <i>Proceedings of the 54th ACM Symposium on Theory of Computing (STOC)</i>,
    2022, pp. 19–32.'
  mla: 'Gharibian, Sevag, and François Le Gall. “Dequantizing the Quantum Singular
    Value Transformation: Hardness and  Applications to Quantum Chemistry and the
    Quantum PCP Conjecture.” <i>Proceedings of the 54th ACM Symposium on Theory of
    Computing (STOC)</i>, 2022, pp. 19–32.'
  short: 'S. Gharibian, F.L. Gall, in: Proceedings of the 54th ACM Symposium on Theory
    of Computing (STOC), 2022, pp. 19–32.'
date_created: 2021-11-18T07:32:56Z
date_updated: 2023-10-09T04:17:29Z
department:
- _id: '623'
- _id: '7'
external_id:
  arxiv:
  - '2111.09079'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2111.09079
oa: '1'
page: 19-32
publication: Proceedings of the 54th ACM Symposium on Theory of Computing (STOC)
publication_status: published
status: public
title: 'Dequantizing the Quantum Singular Value Transformation: Hardness and  Applications
  to Quantum Chemistry and the Quantum PCP Conjecture'
type: conference
user_id: '71541'
year: '2022'
...
---
_id: '31057'
abstract:
- lang: eng
  text: In this paper we give an overview over some aspects of the modern mathematical
    theory of Ruelle resonances for chaotic, i.e. uniformly hyperbolic, dynamical
    systems and their implications in physics. First we recall recent developments
    in the mathematical theory of resonances, in particular how invariant Ruelle distributions
    arise as residues of weighted zeta functions. Then we derive a correspondence
    between weighted and semiclassical zeta functions in the setting of negatively
    curved surfaces. Combining this with results of Hilgert, Guillarmou and Weich
    yields a high frequency interpretation of invariant Ruelle distributions as quantum
    mechanical matrix coefficients in constant negative curvature. We finish by presenting
    numerical calculations of phase space distributions in the more physical setting
    of 3-disk scattering systems.
article_number: '244007'
article_type: review
author:
- first_name: Sonja
  full_name: Barkhofen, Sonja
  id: '48188'
  last_name: Barkhofen
- first_name: Philipp
  full_name: Schütte, Philipp
  id: '50168'
  last_name: Schütte
- first_name: Tobias
  full_name: Weich, Tobias
  id: '49178'
  last_name: Weich
  orcid: 0000-0002-9648-6919
citation:
  ama: 'Barkhofen S, Schütte P, Weich T. Semiclassical formulae For Wigner distributions.
    <i>Journal of Physics A: Mathematical and Theoretical</i>. 2022;55(24). doi:<a
    href="https://doi.org/10.1088/1751-8121/ac6d2b">10.1088/1751-8121/ac6d2b</a>'
  apa: 'Barkhofen, S., Schütte, P., &#38; Weich, T. (2022). Semiclassical formulae
    For Wigner distributions. <i>Journal of Physics A: Mathematical and Theoretical</i>,
    <i>55</i>(24), Article 244007. <a href="https://doi.org/10.1088/1751-8121/ac6d2b">https://doi.org/10.1088/1751-8121/ac6d2b</a>'
  bibtex: '@article{Barkhofen_Schütte_Weich_2022, title={Semiclassical formulae For
    Wigner distributions}, volume={55}, DOI={<a href="https://doi.org/10.1088/1751-8121/ac6d2b">10.1088/1751-8121/ac6d2b</a>},
    number={24244007}, journal={Journal of Physics A: Mathematical and Theoretical},
    publisher={IOP Publishing Ltd}, author={Barkhofen, Sonja and Schütte, Philipp
    and Weich, Tobias}, year={2022} }'
  chicago: 'Barkhofen, Sonja, Philipp Schütte, and Tobias Weich. “Semiclassical Formulae
    For Wigner Distributions.” <i>Journal of Physics A: Mathematical and Theoretical</i>
    55, no. 24 (2022). <a href="https://doi.org/10.1088/1751-8121/ac6d2b">https://doi.org/10.1088/1751-8121/ac6d2b</a>.'
  ieee: 'S. Barkhofen, P. Schütte, and T. Weich, “Semiclassical formulae For Wigner
    distributions,” <i>Journal of Physics A: Mathematical and Theoretical</i>, vol.
    55, no. 24, Art. no. 244007, 2022, doi: <a href="https://doi.org/10.1088/1751-8121/ac6d2b">10.1088/1751-8121/ac6d2b</a>.'
  mla: 'Barkhofen, Sonja, et al. “Semiclassical Formulae For Wigner Distributions.”
    <i>Journal of Physics A: Mathematical and Theoretical</i>, vol. 55, no. 24, 244007,
    IOP Publishing Ltd, 2022, doi:<a href="https://doi.org/10.1088/1751-8121/ac6d2b">10.1088/1751-8121/ac6d2b</a>.'
  short: 'S. Barkhofen, P. Schütte, T. Weich, Journal of Physics A: Mathematical and
    Theoretical 55 (2022).'
date_created: 2022-05-04T12:23:11Z
date_updated: 2024-02-06T20:40:45Z
department:
- _id: '623'
- _id: '548'
- _id: '10'
doi: 10.1088/1751-8121/ac6d2b
external_id:
  arxiv:
  - '2201.04892'
intvolume: '        55'
issue: '24'
language:
- iso: eng
publication: 'Journal of Physics A: Mathematical and Theoretical'
publisher: IOP Publishing Ltd
status: public
title: Semiclassical formulae For Wigner distributions
type: journal_article
user_id: '49178'
volume: 55
year: '2022'
...
---
_id: '35322'
author:
- first_name: Kai-Uwe
  full_name: Bux, Kai-Uwe
  last_name: Bux
- first_name: Joachim
  full_name: Hilgert, Joachim
  id: '220'
  last_name: Hilgert
- first_name: Tobias
  full_name: Weich, Tobias
  id: '49178'
  last_name: Weich
  orcid: 0000-0002-9648-6919
citation:
  ama: Bux K-U, Hilgert J, Weich T. Poisson transforms for trees of bounded degree.
    <i>Journal of Spectral Theory</i>. 2022;12(2):659-681. doi:<a href="https://doi.org/10.4171/jst/414">10.4171/jst/414</a>
  apa: Bux, K.-U., Hilgert, J., &#38; Weich, T. (2022). Poisson transforms for trees
    of bounded degree. <i>Journal of Spectral Theory</i>, <i>12</i>(2), 659–681. <a
    href="https://doi.org/10.4171/jst/414">https://doi.org/10.4171/jst/414</a>
  bibtex: '@article{Bux_Hilgert_Weich_2022, title={Poisson transforms for trees of
    bounded degree}, volume={12}, DOI={<a href="https://doi.org/10.4171/jst/414">10.4171/jst/414</a>},
    number={2}, journal={Journal of Spectral Theory}, publisher={European Mathematical
    Society - EMS - Publishing House GmbH}, author={Bux, Kai-Uwe and Hilgert, Joachim
    and Weich, Tobias}, year={2022}, pages={659–681} }'
  chicago: 'Bux, Kai-Uwe, Joachim Hilgert, and Tobias Weich. “Poisson Transforms for
    Trees of Bounded Degree.” <i>Journal of Spectral Theory</i> 12, no. 2 (2022):
    659–81. <a href="https://doi.org/10.4171/jst/414">https://doi.org/10.4171/jst/414</a>.'
  ieee: 'K.-U. Bux, J. Hilgert, and T. Weich, “Poisson transforms for trees of bounded
    degree,” <i>Journal of Spectral Theory</i>, vol. 12, no. 2, pp. 659–681, 2022,
    doi: <a href="https://doi.org/10.4171/jst/414">10.4171/jst/414</a>.'
  mla: Bux, Kai-Uwe, et al. “Poisson Transforms for Trees of Bounded Degree.” <i>Journal
    of Spectral Theory</i>, vol. 12, no. 2, European Mathematical Society - EMS -
    Publishing House GmbH, 2022, pp. 659–81, doi:<a href="https://doi.org/10.4171/jst/414">10.4171/jst/414</a>.
  short: K.-U. Bux, J. Hilgert, T. Weich, Journal of Spectral Theory 12 (2022) 659–681.
date_created: 2023-01-06T08:49:06Z
date_updated: 2024-02-19T06:28:12Z
department:
- _id: '10'
- _id: '623'
- _id: '548'
- _id: '91'
doi: 10.4171/jst/414
intvolume: '        12'
issue: '2'
keyword:
- Geometry and Topology
- Mathematical Physics
- Statistical and Nonlinear Physics
language:
- iso: eng
page: 659-681
publication: Journal of Spectral Theory
publication_identifier:
  issn:
  - 1664-039X
publication_status: published
publisher: European Mathematical Society - EMS - Publishing House GmbH
status: public
title: Poisson transforms for trees of bounded degree
type: journal_article
user_id: '49063'
volume: 12
year: '2022'
...
---
_id: '39025'
article_number: '150501'
author:
- first_name: Evan
  full_name: Meyer-Scott, Evan
  last_name: Meyer-Scott
- first_name: Nidhin
  full_name: Prasannan, Nidhin
  id: '71403'
  last_name: Prasannan
- first_name: Ish
  full_name: Dhand, Ish
  last_name: Dhand
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Viktor
  full_name: Quiring, Viktor
  last_name: Quiring
- first_name: Sonja
  full_name: Barkhofen, Sonja
  id: '48188'
  last_name: Barkhofen
- first_name: Benjamin
  full_name: Brecht, Benjamin
  id: '27150'
  last_name: Brecht
  orcid: '0000-0003-4140-0556 '
- first_name: Martin B.
  full_name: Plenio, Martin B.
  last_name: Plenio
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
citation:
  ama: Meyer-Scott E, Prasannan N, Dhand I, et al. Scalable Generation of Multiphoton
    Entangled States by Active Feed-Forward and Multiplexing. <i>Physical Review Letters</i>.
    2022;129(15). doi:<a href="https://doi.org/10.1103/physrevlett.129.150501">10.1103/physrevlett.129.150501</a>
  apa: Meyer-Scott, E., Prasannan, N., Dhand, I., Eigner, C., Quiring, V., Barkhofen,
    S., Brecht, B., Plenio, M. B., &#38; Silberhorn, C. (2022). Scalable Generation
    of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. <i>Physical
    Review Letters</i>, <i>129</i>(15), Article 150501. <a href="https://doi.org/10.1103/physrevlett.129.150501">https://doi.org/10.1103/physrevlett.129.150501</a>
  bibtex: '@article{Meyer-Scott_Prasannan_Dhand_Eigner_Quiring_Barkhofen_Brecht_Plenio_Silberhorn_2022,
    title={Scalable Generation of Multiphoton Entangled States by Active Feed-Forward
    and Multiplexing}, volume={129}, DOI={<a href="https://doi.org/10.1103/physrevlett.129.150501">10.1103/physrevlett.129.150501</a>},
    number={15150501}, journal={Physical Review Letters}, publisher={American Physical
    Society (APS)}, author={Meyer-Scott, Evan and Prasannan, Nidhin and Dhand, Ish
    and Eigner, Christof and Quiring, Viktor and Barkhofen, Sonja and Brecht, Benjamin
    and Plenio, Martin B. and Silberhorn, Christine}, year={2022} }'
  chicago: Meyer-Scott, Evan, Nidhin Prasannan, Ish Dhand, Christof Eigner, Viktor
    Quiring, Sonja Barkhofen, Benjamin Brecht, Martin B. Plenio, and Christine Silberhorn.
    “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and
    Multiplexing.” <i>Physical Review Letters</i> 129, no. 15 (2022). <a href="https://doi.org/10.1103/physrevlett.129.150501">https://doi.org/10.1103/physrevlett.129.150501</a>.
  ieee: 'E. Meyer-Scott <i>et al.</i>, “Scalable Generation of Multiphoton Entangled
    States by Active Feed-Forward and Multiplexing,” <i>Physical Review Letters</i>,
    vol. 129, no. 15, Art. no. 150501, 2022, doi: <a href="https://doi.org/10.1103/physrevlett.129.150501">10.1103/physrevlett.129.150501</a>.'
  mla: Meyer-Scott, Evan, et al. “Scalable Generation of Multiphoton Entangled States
    by Active Feed-Forward and Multiplexing.” <i>Physical Review Letters</i>, vol.
    129, no. 15, 150501, American Physical Society (APS), 2022, doi:<a href="https://doi.org/10.1103/physrevlett.129.150501">10.1103/physrevlett.129.150501</a>.
  short: E. Meyer-Scott, N. Prasannan, I. Dhand, C. Eigner, V. Quiring, S. Barkhofen,
    B. Brecht, M.B. Plenio, C. Silberhorn, Physical Review Letters 129 (2022).
date_created: 2023-01-24T08:05:44Z
date_updated: 2023-01-31T07:51:51Z
department:
- _id: '623'
doi: 10.1103/physrevlett.129.150501
intvolume: '       129'
issue: '15'
keyword:
- General Physics and Astronomy
language:
- iso: eng
publication: Physical Review Letters
publication_identifier:
  issn:
  - 0031-9007
  - 1079-7114
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Scalable Generation of Multiphoton Entangled States by Active Feed-Forward
  and Multiplexing
type: journal_article
user_id: '26263'
volume: 129
year: '2022'
...
---
_id: '40273'
article_number: '150501'
author:
- first_name: Evan
  full_name: Meyer-Scott, Evan
  last_name: Meyer-Scott
- first_name: Nidhin
  full_name: Prasannan, Nidhin
  id: '71403'
  last_name: Prasannan
- first_name: Ish
  full_name: Dhand, Ish
  last_name: Dhand
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Viktor
  full_name: Quiring, Viktor
  last_name: Quiring
- first_name: Sonja
  full_name: Barkhofen, Sonja
  id: '48188'
  last_name: Barkhofen
- first_name: Benjamin
  full_name: Brecht, Benjamin
  id: '27150'
  last_name: Brecht
  orcid: '0000-0003-4140-0556 '
- first_name: Martin B.
  full_name: Plenio, Martin B.
  last_name: Plenio
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
citation:
  ama: Meyer-Scott E, Prasannan N, Dhand I, et al. Scalable Generation of Multiphoton
    Entangled States by Active Feed-Forward and Multiplexing. <i>Physical Review Letters</i>.
    2022;129(15). doi:<a href="https://doi.org/10.1103/physrevlett.129.150501">10.1103/physrevlett.129.150501</a>
  apa: Meyer-Scott, E., Prasannan, N., Dhand, I., Eigner, C., Quiring, V., Barkhofen,
    S., Brecht, B., Plenio, M. B., &#38; Silberhorn, C. (2022). Scalable Generation
    of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. <i>Physical
    Review Letters</i>, <i>129</i>(15), Article 150501. <a href="https://doi.org/10.1103/physrevlett.129.150501">https://doi.org/10.1103/physrevlett.129.150501</a>
  bibtex: '@article{Meyer-Scott_Prasannan_Dhand_Eigner_Quiring_Barkhofen_Brecht_Plenio_Silberhorn_2022,
    title={Scalable Generation of Multiphoton Entangled States by Active Feed-Forward
    and Multiplexing}, volume={129}, DOI={<a href="https://doi.org/10.1103/physrevlett.129.150501">10.1103/physrevlett.129.150501</a>},
    number={15150501}, journal={Physical Review Letters}, publisher={American Physical
    Society (APS)}, author={Meyer-Scott, Evan and Prasannan, Nidhin and Dhand, Ish
    and Eigner, Christof and Quiring, Viktor and Barkhofen, Sonja and Brecht, Benjamin
    and Plenio, Martin B. and Silberhorn, Christine}, year={2022} }'
  chicago: Meyer-Scott, Evan, Nidhin Prasannan, Ish Dhand, Christof Eigner, Viktor
    Quiring, Sonja Barkhofen, Benjamin Brecht, Martin B. Plenio, and Christine Silberhorn.
    “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and
    Multiplexing.” <i>Physical Review Letters</i> 129, no. 15 (2022). <a href="https://doi.org/10.1103/physrevlett.129.150501">https://doi.org/10.1103/physrevlett.129.150501</a>.
  ieee: 'E. Meyer-Scott <i>et al.</i>, “Scalable Generation of Multiphoton Entangled
    States by Active Feed-Forward and Multiplexing,” <i>Physical Review Letters</i>,
    vol. 129, no. 15, Art. no. 150501, 2022, doi: <a href="https://doi.org/10.1103/physrevlett.129.150501">10.1103/physrevlett.129.150501</a>.'
  mla: Meyer-Scott, Evan, et al. “Scalable Generation of Multiphoton Entangled States
    by Active Feed-Forward and Multiplexing.” <i>Physical Review Letters</i>, vol.
    129, no. 15, 150501, American Physical Society (APS), 2022, doi:<a href="https://doi.org/10.1103/physrevlett.129.150501">10.1103/physrevlett.129.150501</a>.
  short: E. Meyer-Scott, N. Prasannan, I. Dhand, C. Eigner, V. Quiring, S. Barkhofen,
    B. Brecht, M.B. Plenio, C. Silberhorn, Physical Review Letters 129 (2022).
date_created: 2023-01-26T10:21:24Z
date_updated: 2023-02-02T08:53:55Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
- _id: '230'
doi: 10.1103/physrevlett.129.150501
intvolume: '       129'
issue: '15'
keyword:
- General Physics and Astronomy
language:
- iso: eng
publication: Physical Review Letters
publication_identifier:
  issn:
  - 0031-9007
  - 1079-7114
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Scalable Generation of Multiphoton Entangled States by Active Feed-Forward
  and Multiplexing
type: journal_article
user_id: '48188'
volume: 129
year: '2022'
...
---
_id: '33450'
article_number: '042622'
author:
- first_name: Craig S.
  full_name: Hamilton, Craig S.
  last_name: Hamilton
- first_name: Regina
  full_name: Christ, Regina
  last_name: Christ
- first_name: Sonja
  full_name: Barkhofen, Sonja
  id: '48188'
  last_name: Barkhofen
- first_name: Stephen M.
  full_name: Barnett, Stephen M.
  last_name: Barnett
- first_name: Igor
  full_name: Jex, Igor
  last_name: Jex
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
citation:
  ama: Hamilton CS, Christ R, Barkhofen S, Barnett SM, Jex I, Silberhorn C. Quantum-state
    creation in nonlinear-waveguide arrays. <i>Physical Review A</i>. 2022;105(4).
    doi:<a href="https://doi.org/10.1103/physreva.105.042622">10.1103/physreva.105.042622</a>
  apa: Hamilton, C. S., Christ, R., Barkhofen, S., Barnett, S. M., Jex, I., &#38;
    Silberhorn, C. (2022). Quantum-state creation in nonlinear-waveguide arrays. <i>Physical
    Review A</i>, <i>105</i>(4), Article 042622. <a href="https://doi.org/10.1103/physreva.105.042622">https://doi.org/10.1103/physreva.105.042622</a>
  bibtex: '@article{Hamilton_Christ_Barkhofen_Barnett_Jex_Silberhorn_2022, title={Quantum-state
    creation in nonlinear-waveguide arrays}, volume={105}, DOI={<a href="https://doi.org/10.1103/physreva.105.042622">10.1103/physreva.105.042622</a>},
    number={4042622}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Hamilton, Craig S. and Christ, Regina and Barkhofen, Sonja and
    Barnett, Stephen M. and Jex, Igor and Silberhorn, Christine}, year={2022} }'
  chicago: Hamilton, Craig S., Regina Christ, Sonja Barkhofen, Stephen M. Barnett,
    Igor Jex, and Christine Silberhorn. “Quantum-State Creation in Nonlinear-Waveguide
    Arrays.” <i>Physical Review A</i> 105, no. 4 (2022). <a href="https://doi.org/10.1103/physreva.105.042622">https://doi.org/10.1103/physreva.105.042622</a>.
  ieee: 'C. S. Hamilton, R. Christ, S. Barkhofen, S. M. Barnett, I. Jex, and C. Silberhorn,
    “Quantum-state creation in nonlinear-waveguide arrays,” <i>Physical Review A</i>,
    vol. 105, no. 4, Art. no. 042622, 2022, doi: <a href="https://doi.org/10.1103/physreva.105.042622">10.1103/physreva.105.042622</a>.'
  mla: Hamilton, Craig S., et al. “Quantum-State Creation in Nonlinear-Waveguide Arrays.”
    <i>Physical Review A</i>, vol. 105, no. 4, 042622, American Physical Society (APS),
    2022, doi:<a href="https://doi.org/10.1103/physreva.105.042622">10.1103/physreva.105.042622</a>.
  short: C.S. Hamilton, R. Christ, S. Barkhofen, S.M. Barnett, I. Jex, C. Silberhorn,
    Physical Review A 105 (2022).
date_created: 2022-09-21T06:40:02Z
date_updated: 2023-02-02T08:34:15Z
department:
- _id: '623'
doi: 10.1103/physreva.105.042622
intvolume: '       105'
issue: '4'
language:
- iso: eng
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Quantum-state creation in nonlinear-waveguide arrays
type: journal_article
user_id: '48188'
volume: 105
year: '2022'
...
---
_id: '41879'
article_number: '093603'
author:
- first_name: F
  full_name: Sbresny, F
  last_name: Sbresny
- first_name: L
  full_name: ' Hanschke, L'
  last_name: ' Hanschke'
- first_name: E
  full_name: Schöll, E
  last_name: Schöll
- first_name: W
  full_name: Rauhaus, W
  last_name: Rauhaus
- first_name: B
  full_name: Scaparra, B
  last_name: Scaparra
- first_name: K
  full_name: Boos, K
  last_name: Boos
- first_name: E.Zubizarreta
  full_name: Casalengua, E.Zubizarreta
  last_name: Casalengua
- first_name: H
  full_name: H. Riedl, H
  last_name: H. Riedl
- first_name: E  Del
  full_name: Valle, E  Del
  last_name: Valle
- first_name: J.J
  full_name: Finley, J.J
  last_name: Finley
- first_name: Klaus D.
  full_name: Jöns, Klaus D.
  id: '85353'
  last_name: Jöns
- first_name: K
  full_name: Müller, K
  last_name: Müller
citation:
  ama: Sbresny F,  Hanschke L, Schöll E, et al. Stimulated Generation of Indistinguishable
    Single Photons from a Quantum Ladder System. 2022;128.
  apa: Sbresny, F.,  Hanschke, L., Schöll, E., Rauhaus, W., Scaparra, B., Boos, K.,
    Casalengua, E. Z., H. Riedl, H., Valle, E. D., Finley, J. J., Jöns, K. D., &#38;
    Müller, K. (2022). <i>Stimulated Generation of Indistinguishable Single Photons
    from a Quantum Ladder System</i> (No. 093603; Vol. 128).
  bibtex: '@article{Sbresny_ Hanschke_Schöll_Rauhaus_Scaparra_Boos_Casalengua_H. Riedl_Valle_Finley_et
    al._2022, series={Phys. Rev. Lett}, title={Stimulated Generation of Indistinguishable
    Single Photons from a Quantum Ladder System}, volume={128}, number={093603}, author={Sbresny,
    F and  Hanschke, L and Schöll, E and Rauhaus, W and Scaparra, B and Boos, K and
    Casalengua, E.Zubizarreta and H. Riedl, H and Valle, E  Del and Finley, J.J and
    et al.}, year={2022}, collection={Phys. Rev. Lett} }'
  chicago: Sbresny, F, L  Hanschke, E Schöll, W Rauhaus, B Scaparra, K Boos, E.Zubizarreta
    Casalengua, et al. “Stimulated Generation of Indistinguishable Single Photons
    from a Quantum Ladder System.” Phys. Rev. Lett, 2022.
  ieee: F. Sbresny <i>et al.</i>, “Stimulated Generation of Indistinguishable Single
    Photons from a Quantum Ladder System,” vol. 128. 2022.
  mla: Sbresny, F., et al. <i>Stimulated Generation of Indistinguishable Single Photons
    from a Quantum Ladder System</i>. 093603, 2022.
  short: F. Sbresny, L.  Hanschke, E. Schöll, W. Rauhaus, B. Scaparra, K. Boos, E.Z.
    Casalengua, H. H. Riedl, E.D. Valle, J.J. Finley, K.D. Jöns, K. Müller, 128 (2022).
date_created: 2023-02-07T19:30:06Z
date_updated: 2023-02-13T08:47:39Z
department:
- _id: '623'
intvolume: '       128'
language:
- iso: ger
publication_status: published
series_title: Phys. Rev. Lett
status: public
title: Stimulated Generation of Indistinguishable Single Photons from a Quantum Ladder
  System
type: conference
user_id: '71124'
volume: 128
year: '2022'
...
---
_id: '41880'
author:
- first_name: M
  full_name: Turunen, M
  last_name: Turunen
- first_name: M
  full_name: Brotons-Gisbert, M
  last_name: Brotons-Gisbert
- first_name: Y
  full_name: ' Dai, Y'
  last_name: ' Dai'
- first_name: Y
  full_name: Wang, Y
  last_name: Wang
- first_name: E
  full_name: Scerri, E
  last_name: Scerri
- first_name: C
  full_name: Bonato, C
  last_name: Bonato
- first_name: Klaus D.
  full_name: Jöns, Klaus D.
  id: '85353'
  last_name: Jöns
- first_name: Z
  full_name: Sun, Z
  last_name: Sun
- first_name: B.D
  full_name: Gerardot, B.D
  last_name: Gerardot
citation:
  ama: Turunen M, Brotons-Gisbert M,  Dai Y, et al. Quantum photonics with layered
    2D materials. 2022;4(4):219-236.
  apa: Turunen, M., Brotons-Gisbert, M.,  Dai, Y., Wang, Y., Scerri, E., Bonato, C.,
    Jöns, K. D., Sun, Z., &#38; Gerardot, B. D. (2022). <i>Quantum photonics with
    layered 2D materials</i> (Vol. 4, Issue 4, pp. 219–236).
  bibtex: '@article{Turunen_Brotons-Gisbert_ Dai_Wang_Scerri_Bonato_Jöns_Sun_Gerardot_2022,
    series={Nature Reviews Physics }, title={Quantum photonics with layered 2D materials},
    volume={4}, number={4}, author={Turunen, M and Brotons-Gisbert, M and  Dai, Y
    and Wang, Y and Scerri, E and Bonato, C and Jöns, Klaus D. and Sun, Z and Gerardot,
    B.D}, year={2022}, pages={219–236}, collection={Nature Reviews Physics } }'
  chicago: Turunen, M, M Brotons-Gisbert, Y  Dai, Y Wang, E Scerri, C Bonato, Klaus
    D. Jöns, Z Sun, and B.D Gerardot. “Quantum photonics with layered 2D materials.”
    Nature Reviews Physics , 2022.
  ieee: M. Turunen <i>et al.</i>, “Quantum photonics with layered 2D materials,” vol.
    4, no. 4. pp. 219–236, 2022.
  mla: Turunen, M., et al. <i>Quantum photonics with layered 2D materials</i>. no.
    4, 2022, pp. 219–36.
  short: M. Turunen, M. Brotons-Gisbert, Y.  Dai, Y. Wang, E. Scerri, C. Bonato, K.D.
    Jöns, Z. Sun, B.D. Gerardot, 4 (2022) 219–236.
date_created: 2023-02-07T19:36:21Z
date_updated: 2023-02-13T08:47:40Z
department:
- _id: '623'
intvolume: '         4'
issue: '4'
language:
- iso: ger
page: 219-236
publication_status: published
series_title: 'Nature Reviews Physics '
status: public
title: Quantum photonics with layered 2D materials
type: conference
user_id: '71124'
volume: 4
year: '2022'
...
---
_id: '41881'
author:
- first_name: E
  full_name: Pelucchi, E
  last_name: Pelucchi
- first_name: G
  full_name: Fagas, G
  last_name: Fagas
- first_name: I
  full_name: ' Aharonovich, I'
  last_name: ' Aharonovich'
- first_name: D
  full_name: Englund, D
  last_name: Englund
- first_name: E
  full_name: Figueroa, E
  last_name: Figueroa
- first_name: Q
  full_name: Gong, Q
  last_name: Gong
- first_name: H
  full_name: Hannes, H
  last_name: Hannes
- first_name: J
  full_name: Liu, J
  last_name: Liu
- first_name: C-Y
  full_name: Lu, C-Y
  last_name: Lu
- first_name: N
  full_name: Matsuda, N
  last_name: Matsuda
- first_name: J.W
  full_name: Pan, J.W
  last_name: Pan
- first_name: F
  full_name: Schreck, F
  last_name: Schreck
- first_name: F
  full_name: Sciarrino, F
  last_name: Sciarrino
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: J
  full_name: Wang, J
  last_name: Wang
- first_name: Klaus D.
  full_name: Jöns, Klaus D.
  id: '85353'
  last_name: Jöns
citation:
  ama: Pelucchi E, Fagas G,  Aharonovich I, et al. The potential and global outlook
    of integrated photonics for quantum technologi. 2022;4(3):194-208.
  apa: Pelucchi, E., Fagas, G.,  Aharonovich, I., Englund, D., Figueroa, E., Gong,
    Q., Hannes, H., Liu, J., Lu, C.-Y., Matsuda, N., Pan, J. W., Schreck, F., Sciarrino,
    F., Silberhorn, C., Wang, J., &#38; Jöns, K. D. (2022). <i>The potential and global
    outlook of integrated photonics for quantum technologi</i> (Vol. 4, Issue 3, pp.
    194–208).
  bibtex: '@article{Pelucchi_Fagas_ Aharonovich_Englund_Figueroa_Gong_Hannes_Liu_Lu_Matsuda_et
    al._2022, series={Nature Reviews Physics }, title={The potential and global outlook
    of integrated photonics for quantum technologi}, volume={4}, number={3}, author={Pelucchi,
    E and Fagas, G and  Aharonovich, I and Englund, D and Figueroa, E and Gong, Q
    and Hannes, H and Liu, J and Lu, C-Y and Matsuda, N and et al.}, year={2022},
    pages={194–208}, collection={Nature Reviews Physics } }'
  chicago: Pelucchi, E, G Fagas, I  Aharonovich, D Englund, E Figueroa, Q Gong, H
    Hannes, et al. “The potential and global outlook of integrated photonics for quantum
    technologi.” Nature Reviews Physics , 2022.
  ieee: E. Pelucchi <i>et al.</i>, “The potential and global outlook of integrated
    photonics for quantum technologi,” vol. 4, no. 3. pp. 194–208, 2022.
  mla: Pelucchi, E., et al. <i>The potential and global outlook of integrated photonics
    for quantum technologi</i>. no. 3, 2022, pp. 194–208.
  short: E. Pelucchi, G. Fagas, I.  Aharonovich, D. Englund, E. Figueroa, Q. Gong,
    H. Hannes, J. Liu, C.-Y. Lu, N. Matsuda, J.W. Pan, F. Schreck, F. Sciarrino, C.
    Silberhorn, J. Wang, K.D. Jöns, 4 (2022) 194–208.
date_created: 2023-02-07T19:45:56Z
date_updated: 2023-02-13T08:48:29Z
department:
- _id: '623'
intvolume: '         4'
issue: '3'
language:
- iso: ger
page: 194-208
publication_status: published
series_title: 'Nature Reviews Physics '
status: public
title: The potential and global outlook of integrated photonics for quantum technologi
type: conference
user_id: '71124'
volume: 4
year: '2022'
...
---
_id: '34700'
article_number: '13'
author:
- first_name: Sevag
  full_name: Gharibian, Sevag
  id: '71541'
  last_name: Gharibian
  orcid: 0000-0002-9992-3379
- first_name: Miklos
  full_name: Santha, Miklos
  last_name: Santha
- first_name: Jamie
  full_name: Sikora, Jamie
  last_name: Sikora
- first_name: Aarthi
  full_name: Sundaram, Aarthi
  last_name: Sundaram
- first_name: Justin
  full_name: Yirka, Justin
  last_name: Yirka
citation:
  ama: Gharibian S, Santha M, Sikora J, Sundaram A, Yirka J. Quantum generalizations
    of the polynomial hierarchy with applications to QMA(2). <i>Computational Complexity</i>.
    2022;31(2). doi:<a href="https://doi.org/10.1007/s00037-022-00231-8">10.1007/s00037-022-00231-8</a>
  apa: Gharibian, S., Santha, M., Sikora, J., Sundaram, A., &#38; Yirka, J. (2022).
    Quantum generalizations of the polynomial hierarchy with applications to QMA(2).
    <i>Computational Complexity</i>, <i>31</i>(2), Article 13. <a href="https://doi.org/10.1007/s00037-022-00231-8">https://doi.org/10.1007/s00037-022-00231-8</a>
  bibtex: '@article{Gharibian_Santha_Sikora_Sundaram_Yirka_2022, title={Quantum generalizations
    of the polynomial hierarchy with applications to QMA(2)}, volume={31}, DOI={<a
    href="https://doi.org/10.1007/s00037-022-00231-8">10.1007/s00037-022-00231-8</a>},
    number={213}, journal={Computational Complexity}, publisher={Springer Science
    and Business Media LLC}, author={Gharibian, Sevag and Santha, Miklos and Sikora,
    Jamie and Sundaram, Aarthi and Yirka, Justin}, year={2022} }'
  chicago: Gharibian, Sevag, Miklos Santha, Jamie Sikora, Aarthi Sundaram, and Justin
    Yirka. “Quantum Generalizations of the Polynomial Hierarchy with Applications
    to QMA(2).” <i>Computational Complexity</i> 31, no. 2 (2022). <a href="https://doi.org/10.1007/s00037-022-00231-8">https://doi.org/10.1007/s00037-022-00231-8</a>.
  ieee: 'S. Gharibian, M. Santha, J. Sikora, A. Sundaram, and J. Yirka, “Quantum generalizations
    of the polynomial hierarchy with applications to QMA(2),” <i>Computational Complexity</i>,
    vol. 31, no. 2, Art. no. 13, 2022, doi: <a href="https://doi.org/10.1007/s00037-022-00231-8">10.1007/s00037-022-00231-8</a>.'
  mla: Gharibian, Sevag, et al. “Quantum Generalizations of the Polynomial Hierarchy
    with Applications to QMA(2).” <i>Computational Complexity</i>, vol. 31, no. 2,
    13, Springer Science and Business Media LLC, 2022, doi:<a href="https://doi.org/10.1007/s00037-022-00231-8">10.1007/s00037-022-00231-8</a>.
  short: S. Gharibian, M. Santha, J. Sikora, A. Sundaram, J. Yirka, Computational
    Complexity 31 (2022).
date_created: 2022-12-21T10:53:52Z
date_updated: 2023-02-28T11:07:02Z
department:
- _id: '623'
- _id: '7'
doi: 10.1007/s00037-022-00231-8
intvolume: '        31'
issue: '2'
keyword:
- Computational Mathematics
- Computational Theory and Mathematics
- General Mathematics
- Theoretical Computer Science
language:
- iso: eng
publication: Computational Complexity
publication_identifier:
  issn:
  - 1016-3328
  - 1420-8954
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Quantum generalizations of the polynomial hierarchy with applications to QMA(2)
type: journal_article
user_id: '71541'
volume: 31
year: '2022'
...
---
_id: '28254'
abstract:
- lang: eng
  text: With the rapid advances of functional dielectric metasurfaces and their integration
    on on-chip nanophotonic devices, the necessity of metasurfaces working in different
    environments, especially in biological applications, arose. However, the metasurfaces’
    performance is tied to the unit cell’s efficiency and ultimately the surrounding
    environment it was designed for, thus reducing its applicability if exposed to
    altering refractive index media. Here, we report a method to increase a metasurface’s
    versatility by covering the high-index metasurface with a low index porous SiO2
    film, protecting the metasurface from environmental changes while keeping the
    working efficiency unchanged. We show, that a covered metasurface retains its
    functionality even when exposed to fluidic environments.
article_type: original
author:
- first_name: René
  full_name: Geromel, René
  last_name: Geromel
- first_name: Christian
  full_name: Weinberger, Christian
  id: '11848'
  last_name: Weinberger
- first_name: Katja
  full_name: Brormann, Katja
  last_name: Brormann
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
citation:
  ama: Geromel R, Weinberger C, Brormann K, Tiemann M, Zentgraf T. Porous SiO2 coated
    dielectric metasurface with consistent performance independent of environmental
    conditions. <i>Optical Materials Express</i>. 2022;12(1):13-21. doi:<a href="https://doi.org/10.1364/ome.444264">10.1364/ome.444264</a>
  apa: Geromel, R., Weinberger, C., Brormann, K., Tiemann, M., &#38; Zentgraf, T.
    (2022). Porous SiO2 coated dielectric metasurface with consistent performance
    independent of environmental conditions. <i>Optical Materials Express</i>, <i>12</i>(1),
    13–21. <a href="https://doi.org/10.1364/ome.444264">https://doi.org/10.1364/ome.444264</a>
  bibtex: '@article{Geromel_Weinberger_Brormann_Tiemann_Zentgraf_2022, title={Porous
    SiO2 coated dielectric metasurface with consistent performance independent of
    environmental conditions}, volume={12}, DOI={<a href="https://doi.org/10.1364/ome.444264">10.1364/ome.444264</a>},
    number={1}, journal={Optical Materials Express}, publisher={Optica}, author={Geromel,
    René and Weinberger, Christian and Brormann, Katja and Tiemann, Michael and Zentgraf,
    Thomas}, year={2022}, pages={13–21} }'
  chicago: 'Geromel, René, Christian Weinberger, Katja Brormann, Michael Tiemann,
    and Thomas Zentgraf. “Porous SiO2 Coated Dielectric Metasurface with Consistent
    Performance Independent of Environmental Conditions.” <i>Optical Materials Express</i>
    12, no. 1 (2022): 13–21. <a href="https://doi.org/10.1364/ome.444264">https://doi.org/10.1364/ome.444264</a>.'
  ieee: 'R. Geromel, C. Weinberger, K. Brormann, M. Tiemann, and T. Zentgraf, “Porous
    SiO2 coated dielectric metasurface with consistent performance independent of
    environmental conditions,” <i>Optical Materials Express</i>, vol. 12, no. 1, pp.
    13–21, 2022, doi: <a href="https://doi.org/10.1364/ome.444264">10.1364/ome.444264</a>.'
  mla: Geromel, René, et al. “Porous SiO2 Coated Dielectric Metasurface with Consistent
    Performance Independent of Environmental Conditions.” <i>Optical Materials Express</i>,
    vol. 12, no. 1, Optica, 2022, pp. 13–21, doi:<a href="https://doi.org/10.1364/ome.444264">10.1364/ome.444264</a>.
  short: R. Geromel, C. Weinberger, K. Brormann, M. Tiemann, T. Zentgraf, Optical
    Materials Express 12 (2022) 13–21.
date_created: 2021-12-02T18:47:42Z
date_updated: 2023-03-08T08:13:58Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
- _id: '2'
- _id: '35'
- _id: '307'
doi: 10.1364/ome.444264
intvolume: '        12'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.osapublishing.org/ome/fulltext.cfm?uri=ome-12-1-13&id=465602
oa: '1'
page: 13-21
publication: Optical Materials Express
publication_identifier:
  issn:
  - 2159-3930
publication_status: published
publisher: Optica
quality_controlled: '1'
status: public
title: Porous SiO2 coated dielectric metasurface with consistent performance independent
  of environmental conditions
type: journal_article
user_id: '23547'
volume: 12
year: '2022'
...
---
_id: '37318'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n               <jats:p>The interaction
    between quantum light and matter is being intensively studied for systems that
    are enclosed in high-<jats:italic>Q</jats:italic> cavities which strongly enhance
    the light–matter coupling. Cavities with low <jats:italic>Q</jats:italic>-factors
    are generally given less attention due to their high losses that quickly destroy
    quantum systems. However, bad cavities can be utilized for several applications,
    where lower <jats:italic>Q</jats:italic>-factors are required, e.g., to increase
    the spectral width of the cavity mode. In this work, we demonstrate that low-<jats:italic>Q</jats:italic>
    cavities can be beneficial for preparing specific electronic steady states when
    certain quantum states of light are applied. We investigate the interaction between
    quantum light with various statistics and matter represented by a Λ-type three-level
    system in lossy cavities, assuming that cavity losses are the dominant loss mechanism.
    We show that cavity losses lead to non-trivial electronic steady states that can
    be controlled by the loss rate and the initial statistics of the quantum fields.
    We discuss the mechanism of the formation of such steady states on the basis of
    the equations of motion and present both analytical expressions and numerical
    simulations for such steady states.</jats:p>"
article_number: '063020'
author:
- first_name: Hendrik
  full_name: Rose, Hendrik
  id: '55958'
  last_name: Rose
  orcid: 0000-0002-3079-5428
- first_name: O V
  full_name: Tikhonova, O V
  last_name: Tikhonova
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Polina
  full_name: Sharapova, Polina
  id: '60286'
  last_name: Sharapova
citation:
  ama: Rose H, Tikhonova OV, Meier T, Sharapova P. Steady states of Λ-type three-level
    systems excited by quantum light with various photon statistics in lossy cavities.
    <i>New Journal of Physics</i>. 2022;24(6). doi:<a href="https://doi.org/10.1088/1367-2630/ac74d8">10.1088/1367-2630/ac74d8</a>
  apa: Rose, H., Tikhonova, O. V., Meier, T., &#38; Sharapova, P. (2022). Steady states
    of Λ-type three-level systems excited by quantum light with various photon statistics
    in lossy cavities. <i>New Journal of Physics</i>, <i>24</i>(6), Article 063020.
    <a href="https://doi.org/10.1088/1367-2630/ac74d8">https://doi.org/10.1088/1367-2630/ac74d8</a>
  bibtex: '@article{Rose_Tikhonova_Meier_Sharapova_2022, title={Steady states of Λ-type
    three-level systems excited by quantum light with various photon statistics in
    lossy cavities}, volume={24}, DOI={<a href="https://doi.org/10.1088/1367-2630/ac74d8">10.1088/1367-2630/ac74d8</a>},
    number={6063020}, journal={New Journal of Physics}, publisher={IOP Publishing},
    author={Rose, Hendrik and Tikhonova, O V and Meier, Torsten and Sharapova, Polina},
    year={2022} }'
  chicago: Rose, Hendrik, O V Tikhonova, Torsten Meier, and Polina Sharapova. “Steady
    States of Λ-Type Three-Level Systems Excited by Quantum Light with Various Photon
    Statistics in Lossy Cavities.” <i>New Journal of Physics</i> 24, no. 6 (2022).
    <a href="https://doi.org/10.1088/1367-2630/ac74d8">https://doi.org/10.1088/1367-2630/ac74d8</a>.
  ieee: 'H. Rose, O. V. Tikhonova, T. Meier, and P. Sharapova, “Steady states of Λ-type
    three-level systems excited by quantum light with various photon statistics in
    lossy cavities,” <i>New Journal of Physics</i>, vol. 24, no. 6, Art. no. 063020,
    2022, doi: <a href="https://doi.org/10.1088/1367-2630/ac74d8">10.1088/1367-2630/ac74d8</a>.'
  mla: Rose, Hendrik, et al. “Steady States of Λ-Type Three-Level Systems Excited
    by Quantum Light with Various Photon Statistics in Lossy Cavities.” <i>New Journal
    of Physics</i>, vol. 24, no. 6, 063020, IOP Publishing, 2022, doi:<a href="https://doi.org/10.1088/1367-2630/ac74d8">10.1088/1367-2630/ac74d8</a>.
  short: H. Rose, O.V. Tikhonova, T. Meier, P. Sharapova, New Journal of Physics 24
    (2022).
date_created: 2023-01-18T10:56:13Z
date_updated: 2023-04-20T14:51:09Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '623'
- _id: '35'
doi: 10.1088/1367-2630/ac74d8
intvolume: '        24'
issue: '6'
keyword:
- General Physics and Astronomy
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: New Journal of Physics
publication_identifier:
  issn:
  - 1367-2630
publication_status: published
publisher: IOP Publishing
status: public
title: Steady states of Λ-type three-level systems excited by quantum light with various
  photon statistics in lossy cavities
type: journal_article
user_id: '16199'
volume: 24
year: '2022'
...
---
_id: '37319'
article_number: '205408'
author:
- first_name: S.
  full_name: Grisard, S.
  last_name: Grisard
- first_name: Hendrik
  full_name: Rose, Hendrik
  id: '55958'
  last_name: Rose
  orcid: 0000-0002-3079-5428
- first_name: A. V.
  full_name: Trifonov, A. V.
  last_name: Trifonov
- first_name: R.
  full_name: Reichhardt, R.
  last_name: Reichhardt
- first_name: D. E.
  full_name: Reiter, D. E.
  last_name: Reiter
- first_name: Matthias
  full_name: Reichelt, Matthias
  id: '138'
  last_name: Reichelt
- first_name: C.
  full_name: Schneider, C.
  last_name: Schneider
- first_name: M.
  full_name: Kamp, M.
  last_name: Kamp
- first_name: S.
  full_name: Höfling, S.
  last_name: Höfling
- first_name: M.
  full_name: Bayer, M.
  last_name: Bayer
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: I. A.
  full_name: Akimov, I. A.
  last_name: Akimov
citation:
  ama: Grisard S, Rose H, Trifonov AV, et al. Multiple Rabi rotations of trions in
    InGaAs quantum dots observed by photon echo spectroscopy with spatially shaped
    laser pulses. <i>Physical Review B</i>. 2022;106(20). doi:<a href="https://doi.org/10.1103/physrevb.106.205408">10.1103/physrevb.106.205408</a>
  apa: Grisard, S., Rose, H., Trifonov, A. V., Reichhardt, R., Reiter, D. E., Reichelt,
    M., Schneider, C., Kamp, M., Höfling, S., Bayer, M., Meier, T., &#38; Akimov,
    I. A. (2022). Multiple Rabi rotations of trions in InGaAs quantum dots observed
    by photon echo spectroscopy with spatially shaped laser pulses. <i>Physical Review
    B</i>, <i>106</i>(20), Article 205408. <a href="https://doi.org/10.1103/physrevb.106.205408">https://doi.org/10.1103/physrevb.106.205408</a>
  bibtex: '@article{Grisard_Rose_Trifonov_Reichhardt_Reiter_Reichelt_Schneider_Kamp_Höfling_Bayer_et
    al._2022, title={Multiple Rabi rotations of trions in InGaAs quantum dots observed
    by photon echo spectroscopy with spatially shaped laser pulses}, volume={106},
    DOI={<a href="https://doi.org/10.1103/physrevb.106.205408">10.1103/physrevb.106.205408</a>},
    number={20205408}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Grisard, S. and Rose, Hendrik and Trifonov, A. V. and Reichhardt,
    R. and Reiter, D. E. and Reichelt, Matthias and Schneider, C. and Kamp, M. and
    Höfling, S. and Bayer, M. and et al.}, year={2022} }'
  chicago: Grisard, S., Hendrik Rose, A. V. Trifonov, R. Reichhardt, D. E. Reiter,
    Matthias Reichelt, C. Schneider, et al. “Multiple Rabi Rotations of Trions in
    InGaAs Quantum Dots Observed by Photon Echo Spectroscopy with Spatially Shaped
    Laser Pulses.” <i>Physical Review B</i> 106, no. 20 (2022). <a href="https://doi.org/10.1103/physrevb.106.205408">https://doi.org/10.1103/physrevb.106.205408</a>.
  ieee: 'S. Grisard <i>et al.</i>, “Multiple Rabi rotations of trions in InGaAs quantum
    dots observed by photon echo spectroscopy with spatially shaped laser pulses,”
    <i>Physical Review B</i>, vol. 106, no. 20, Art. no. 205408, 2022, doi: <a href="https://doi.org/10.1103/physrevb.106.205408">10.1103/physrevb.106.205408</a>.'
  mla: Grisard, S., et al. “Multiple Rabi Rotations of Trions in InGaAs Quantum Dots
    Observed by Photon Echo Spectroscopy with Spatially Shaped Laser Pulses.” <i>Physical
    Review B</i>, vol. 106, no. 20, 205408, American Physical Society (APS), 2022,
    doi:<a href="https://doi.org/10.1103/physrevb.106.205408">10.1103/physrevb.106.205408</a>.
  short: S. Grisard, H. Rose, A.V. Trifonov, R. Reichhardt, D.E. Reiter, M. Reichelt,
    C. Schneider, M. Kamp, S. Höfling, M. Bayer, T. Meier, I.A. Akimov, Physical Review
    B 106 (2022).
date_created: 2023-01-18T10:58:12Z
date_updated: 2023-04-20T14:53:19Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '623'
- _id: '35'
- _id: '429'
doi: 10.1103/physrevb.106.205408
intvolume: '       106'
issue: '20'
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
  issn:
  - 2469-9950
  - 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Multiple Rabi rotations of trions in InGaAs quantum dots observed by photon
  echo spectroscopy with spatially shaped laser pulses
type: journal_article
user_id: '16199'
volume: 106
year: '2022'
...
---
_id: '37327'
author:
- first_name: Hendrik
  full_name: Rose, Hendrik
  id: '55958'
  last_name: Rose
  orcid: 0000-0002-3079-5428
- first_name: Olga V.
  full_name: Tikhonova, Olga V.
  last_name: Tikhonova
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Polina
  full_name: Sharapova, Polina
  id: '60286'
  last_name: Sharapova
citation:
  ama: 'Rose H, Tikhonova OV, Meier T, Sharapova P. Theoretical analysis of correlations
    between two quantum fields exciting a three-level system using the cluster-expansion
    approach. In: Betz M, Elezzabi AY, eds. <i>Ultrafast Phenomena and Nanophotonics
    XXVI</i>. Vol 11999. SPIE Proceedings. ; 2022. doi:<a href="https://doi.org/10.1117/12.2608528">10.1117/12.2608528</a>'
  apa: Rose, H., Tikhonova, O. V., Meier, T., &#38; Sharapova, P. (2022). Theoretical
    analysis of correlations between two quantum fields exciting a three-level system
    using the cluster-expansion approach. In M. Betz &#38; A. Y. Elezzabi (Eds.),
    <i>Ultrafast Phenomena and Nanophotonics XXVI</i> (Vol. 11999). <a href="https://doi.org/10.1117/12.2608528">https://doi.org/10.1117/12.2608528</a>
  bibtex: '@inproceedings{Rose_Tikhonova_Meier_Sharapova_2022, series={SPIE Proceedings},
    title={Theoretical analysis of correlations between two quantum fields exciting
    a three-level system using the cluster-expansion approach}, volume={11999}, DOI={<a
    href="https://doi.org/10.1117/12.2608528">10.1117/12.2608528</a>}, booktitle={Ultrafast
    Phenomena and Nanophotonics XXVI}, author={Rose, Hendrik and Tikhonova, Olga V.
    and Meier, Torsten and Sharapova, Polina}, editor={Betz, Markus and Elezzabi,
    Abdulhakem Y.}, year={2022}, collection={SPIE Proceedings} }'
  chicago: Rose, Hendrik, Olga V. Tikhonova, Torsten Meier, and Polina Sharapova.
    “Theoretical Analysis of Correlations between Two Quantum Fields Exciting a Three-Level
    System Using the Cluster-Expansion Approach.” In <i>Ultrafast Phenomena and Nanophotonics
    XXVI</i>, edited by Markus Betz and Abdulhakem Y. Elezzabi, Vol. 11999. SPIE Proceedings,
    2022. <a href="https://doi.org/10.1117/12.2608528">https://doi.org/10.1117/12.2608528</a>.
  ieee: 'H. Rose, O. V. Tikhonova, T. Meier, and P. Sharapova, “Theoretical analysis
    of correlations between two quantum fields exciting a three-level system using
    the cluster-expansion approach,” in <i>Ultrafast Phenomena and Nanophotonics XXVI</i>,
    2022, vol. 11999, doi: <a href="https://doi.org/10.1117/12.2608528">10.1117/12.2608528</a>.'
  mla: Rose, Hendrik, et al. “Theoretical Analysis of Correlations between Two Quantum
    Fields Exciting a Three-Level System Using the Cluster-Expansion Approach.” <i>Ultrafast
    Phenomena and Nanophotonics XXVI</i>, edited by Markus Betz and Abdulhakem Y.
    Elezzabi, vol. 11999, 2022, doi:<a href="https://doi.org/10.1117/12.2608528">10.1117/12.2608528</a>.
  short: 'H. Rose, O.V. Tikhonova, T. Meier, P. Sharapova, in: M. Betz, A.Y. Elezzabi
    (Eds.), Ultrafast Phenomena and Nanophotonics XXVI, 2022.'
date_created: 2023-01-18T11:19:54Z
date_updated: 2023-04-20T14:51:31Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '623'
- _id: '35'
doi: 10.1117/12.2608528
editor:
- first_name: Markus
  full_name: Betz, Markus
  last_name: Betz
- first_name: Abdulhakem Y.
  full_name: Elezzabi, Abdulhakem Y.
  last_name: Elezzabi
intvolume: '     11999'
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Ultrafast Phenomena and Nanophotonics XXVI
publication_status: published
series_title: SPIE Proceedings
status: public
title: Theoretical analysis of correlations between two quantum fields exciting a
  three-level system using the cluster-expansion approach
type: conference
user_id: '16199'
volume: 11999
year: '2022'
...
---
_id: '40523'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>Tailored nanoscale quantum light
    sources, matching the specific needs of use cases, are crucial building blocks
    for photonic quantum technologies. Several different approaches to realize solid-state
    quantum emitters with high performance have been pursued and different concepts
    for energy tuning have been established. However, the properties of the emitted
    photons are always defined by the individual quantum emitter and can therefore
    not be controlled with full flexibility. Here we introduce an all-optical nonlinear
    method to tailor and control the single photon emission. We demonstrate a laser-controlled
    down-conversion process from an excited state of a semiconductor quantum three-level
    system. Based on this concept, we realize energy tuning and polarization control
    of the single photon emission with a control-laser field. Our results mark an
    important step towards tailored single photon emission from a photonic quantum
    system based on quantum optical principles.</jats:p>
article_number: '1387'
author:
- first_name: B.
  full_name: Jonas, B.
  last_name: Jonas
- first_name: Dirk Florian
  full_name: Heinze, Dirk Florian
  id: '10904'
  last_name: Heinze
- first_name: E.
  full_name: Schöll, E.
  last_name: Schöll
- first_name: P.
  full_name: Kallert, P.
  last_name: Kallert
- first_name: T.
  full_name: Langer, T.
  last_name: Langer
- first_name: S.
  full_name: Krehs, S.
  last_name: Krehs
- first_name: A.
  full_name: Widhalm, A.
  last_name: Widhalm
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
- first_name: Dirk
  full_name: Reuter, Dirk
  id: '37763'
  last_name: Reuter
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Artur
  full_name: Zrenner, Artur
  id: '606'
  last_name: Zrenner
  orcid: 0000-0002-5190-0944
citation:
  ama: Jonas B, Heinze DF, Schöll E, et al. Nonlinear down-conversion in a single
    quantum dot. <i>Nature Communications</i>. 2022;13(1). doi:<a href="https://doi.org/10.1038/s41467-022-28993-3">10.1038/s41467-022-28993-3</a>
  apa: Jonas, B., Heinze, D. F., Schöll, E., Kallert, P., Langer, T., Krehs, S., Widhalm,
    A., Jöns, K., Reuter, D., Schumacher, S., &#38; Zrenner, A. (2022). Nonlinear
    down-conversion in a single quantum dot. <i>Nature Communications</i>, <i>13</i>(1),
    Article 1387. <a href="https://doi.org/10.1038/s41467-022-28993-3">https://doi.org/10.1038/s41467-022-28993-3</a>
  bibtex: '@article{Jonas_Heinze_Schöll_Kallert_Langer_Krehs_Widhalm_Jöns_Reuter_Schumacher_et
    al._2022, title={Nonlinear down-conversion in a single quantum dot}, volume={13},
    DOI={<a href="https://doi.org/10.1038/s41467-022-28993-3">10.1038/s41467-022-28993-3</a>},
    number={11387}, journal={Nature Communications}, publisher={Springer Science and
    Business Media LLC}, author={Jonas, B. and Heinze, Dirk Florian and Schöll, E.
    and Kallert, P. and Langer, T. and Krehs, S. and Widhalm, A. and Jöns, Klaus and
    Reuter, Dirk and Schumacher, Stefan and et al.}, year={2022} }'
  chicago: Jonas, B., Dirk Florian Heinze, E. Schöll, P. Kallert, T. Langer, S. Krehs,
    A. Widhalm, et al. “Nonlinear Down-Conversion in a Single Quantum Dot.” <i>Nature
    Communications</i> 13, no. 1 (2022). <a href="https://doi.org/10.1038/s41467-022-28993-3">https://doi.org/10.1038/s41467-022-28993-3</a>.
  ieee: 'B. Jonas <i>et al.</i>, “Nonlinear down-conversion in a single quantum dot,”
    <i>Nature Communications</i>, vol. 13, no. 1, Art. no. 1387, 2022, doi: <a href="https://doi.org/10.1038/s41467-022-28993-3">10.1038/s41467-022-28993-3</a>.'
  mla: Jonas, B., et al. “Nonlinear Down-Conversion in a Single Quantum Dot.” <i>Nature
    Communications</i>, vol. 13, no. 1, 1387, Springer Science and Business Media
    LLC, 2022, doi:<a href="https://doi.org/10.1038/s41467-022-28993-3">10.1038/s41467-022-28993-3</a>.
  short: B. Jonas, D.F. Heinze, E. Schöll, P. Kallert, T. Langer, S. Krehs, A. Widhalm,
    K. Jöns, D. Reuter, S. Schumacher, A. Zrenner, Nature Communications 13 (2022).
date_created: 2023-01-27T13:41:42Z
date_updated: 2023-04-20T15:18:31Z
department:
- _id: '15'
- _id: '297'
- _id: '230'
- _id: '429'
- _id: '27'
- _id: '623'
- _id: '170'
- _id: '35'
doi: 10.1038/s41467-022-28993-3
intvolume: '        13'
issue: '1'
keyword:
- General Physics and Astronomy
- General Biochemistry
- Genetics and Molecular Biology
- General Chemistry
- Multidisciplinary
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '60'
  name: 'TRR 142 - A03: TRR 142 - Subproject A03'
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Nonlinear down-conversion in a single quantum dot
type: journal_article
user_id: '16199'
volume: 13
year: '2022'
...
---
_id: '40431'
article_number: '045302'
author:
- first_name: Tom
  full_name: Praschan, Tom
  last_name: Praschan
- first_name: Dirk
  full_name: Heinze, Dirk
  last_name: Heinze
- first_name: Dominik
  full_name: Breddermann, Dominik
  last_name: Breddermann
- first_name: Artur
  full_name: Zrenner, Artur
  id: '606'
  last_name: Zrenner
  orcid: 0000-0002-5190-0944
- first_name: Andrea
  full_name: Walther, Andrea
  last_name: Walther
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Praschan T, Heinze D, Breddermann D, Zrenner A, Walther A, Schumacher S. Pulse
    shaping for on-demand emission of single Raman photons from a quantum-dot biexciton.
    <i>Physical Review B</i>. 2022;105(4). doi:<a href="https://doi.org/10.1103/physrevb.105.045302">10.1103/physrevb.105.045302</a>
  apa: Praschan, T., Heinze, D., Breddermann, D., Zrenner, A., Walther, A., &#38;
    Schumacher, S. (2022). Pulse shaping for on-demand emission of single Raman photons
    from a quantum-dot biexciton. <i>Physical Review B</i>, <i>105</i>(4), Article
    045302. <a href="https://doi.org/10.1103/physrevb.105.045302">https://doi.org/10.1103/physrevb.105.045302</a>
  bibtex: '@article{Praschan_Heinze_Breddermann_Zrenner_Walther_Schumacher_2022, title={Pulse
    shaping for on-demand emission of single Raman photons from a quantum-dot biexciton},
    volume={105}, DOI={<a href="https://doi.org/10.1103/physrevb.105.045302">10.1103/physrevb.105.045302</a>},
    number={4045302}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Praschan, Tom and Heinze, Dirk and Breddermann, Dominik and Zrenner,
    Artur and Walther, Andrea and Schumacher, Stefan}, year={2022} }'
  chicago: Praschan, Tom, Dirk Heinze, Dominik Breddermann, Artur Zrenner, Andrea
    Walther, and Stefan Schumacher. “Pulse Shaping for On-Demand Emission of Single
    Raman Photons from a Quantum-Dot Biexciton.” <i>Physical Review B</i> 105, no.
    4 (2022). <a href="https://doi.org/10.1103/physrevb.105.045302">https://doi.org/10.1103/physrevb.105.045302</a>.
  ieee: 'T. Praschan, D. Heinze, D. Breddermann, A. Zrenner, A. Walther, and S. Schumacher,
    “Pulse shaping for on-demand emission of single Raman photons from a quantum-dot
    biexciton,” <i>Physical Review B</i>, vol. 105, no. 4, Art. no. 045302, 2022,
    doi: <a href="https://doi.org/10.1103/physrevb.105.045302">10.1103/physrevb.105.045302</a>.'
  mla: Praschan, Tom, et al. “Pulse Shaping for On-Demand Emission of Single Raman
    Photons from a Quantum-Dot Biexciton.” <i>Physical Review B</i>, vol. 105, no.
    4, 045302, American Physical Society (APS), 2022, doi:<a href="https://doi.org/10.1103/physrevb.105.045302">10.1103/physrevb.105.045302</a>.
  short: T. Praschan, D. Heinze, D. Breddermann, A. Zrenner, A. Walther, S. Schumacher,
    Physical Review B 105 (2022).
date_created: 2023-01-26T15:45:42Z
date_updated: 2023-04-20T15:19:24Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '290'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '35'
doi: 10.1103/physrevb.105.045302
intvolume: '       105'
issue: '4'
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '60'
  name: 'TRR 142 - A3: TRR 142 - Subproject A3'
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
  issn:
  - 2469-9950
  - 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Pulse shaping for on-demand emission of single Raman photons from a quantum-dot
  biexciton
type: journal_article
user_id: '16199'
volume: 105
year: '2022'
...
---
_id: '33484'
abstract:
- lang: eng
  text: We study the DC conductivity in potassium titanyl phosphate (KTiOPO4, KTP)
    and its isomorphs KTiOAsO4 (KTA) and Rb1%K99%TiOPO4 (RKTP) and introduce a method
    by which to reduce the overall ionic conductivity in KTP by a potassium nitrate
    treatment. Furthermore, we create so-called gray tracking in KTP and investigate
    the ionic conductivity in theses areas. A local unintended reduction of the ionic
    conductivity is observed in the gray-tracked regions, which also induce additional
    optical absorption in the material. We show that a thermal treatment in an oxygen-rich
    atmosphere removes the gray tracking and brings the ionic conductivity as well
    as the optical transmission back to the original level. These studies can help
    to choose the best material and treatment for specific applications.
author:
- first_name: Laura
  full_name: Padberg, Laura
  id: '40300'
  last_name: Padberg
- first_name: Viktor
  full_name: Quiring, Viktor
  last_name: Quiring
- first_name: Adriana
  full_name: Bocchini, Adriana
  id: '58349'
  last_name: Bocchini
  orcid: 0000-0002-2134-3075
- first_name: Matteo
  full_name: Santandrea, Matteo
  id: '55095'
  last_name: Santandrea
  orcid: 0000-0001-5718-358X
- first_name: Uwe
  full_name: Gerstmann, Uwe
  id: '171'
  last_name: Gerstmann
  orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
citation:
  ama: 'Padberg L, Quiring V, Bocchini A, et al. DC Ionic Conductivity in KTP and
    Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray
    Tracking. <i>Crystals</i>. 2022;12:1359. doi:<a href="https://doi.org/10.3390/cryst12101359">10.3390/cryst12101359</a>'
  apa: 'Padberg, L., Quiring, V., Bocchini, A., Santandrea, M., Gerstmann, U., Schmidt,
    W. G., Silberhorn, C., &#38; Eigner, C. (2022). DC Ionic Conductivity in KTP and
    Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray
    Tracking. <i>Crystals</i>, <i>12</i>, 1359. <a href="https://doi.org/10.3390/cryst12101359">https://doi.org/10.3390/cryst12101359</a>'
  bibtex: '@article{Padberg_Quiring_Bocchini_Santandrea_Gerstmann_Schmidt_Silberhorn_Eigner_2022,
    title={DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for
    Suppression, and Its Connection to Gray Tracking}, volume={12}, DOI={<a href="https://doi.org/10.3390/cryst12101359">10.3390/cryst12101359</a>},
    journal={Crystals}, author={Padberg, Laura and Quiring, Viktor and Bocchini, Adriana
    and Santandrea, Matteo and Gerstmann, Uwe and Schmidt, Wolf Gero and Silberhorn,
    Christine and Eigner, Christof}, year={2022}, pages={1359} }'
  chicago: 'Padberg, Laura, Viktor Quiring, Adriana Bocchini, Matteo Santandrea, Uwe
    Gerstmann, Wolf Gero Schmidt, Christine Silberhorn, and Christof Eigner. “DC Ionic
    Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and
    Its Connection to Gray Tracking.” <i>Crystals</i> 12 (2022): 1359. <a href="https://doi.org/10.3390/cryst12101359">https://doi.org/10.3390/cryst12101359</a>.'
  ieee: 'L. Padberg <i>et al.</i>, “DC Ionic Conductivity in KTP and Its Isomorphs:
    Properties, Methods for Suppression, and Its Connection to Gray Tracking,” <i>Crystals</i>,
    vol. 12, p. 1359, 2022, doi: <a href="https://doi.org/10.3390/cryst12101359">10.3390/cryst12101359</a>.'
  mla: 'Padberg, Laura, et al. “DC Ionic Conductivity in KTP and Its Isomorphs: Properties,
    Methods for Suppression, and Its Connection to Gray Tracking.” <i>Crystals</i>,
    vol. 12, 2022, p. 1359, doi:<a href="https://doi.org/10.3390/cryst12101359">10.3390/cryst12101359</a>.'
  short: L. Padberg, V. Quiring, A. Bocchini, M. Santandrea, U. Gerstmann, W.G. Schmidt,
    C. Silberhorn, C. Eigner, Crystals 12 (2022) 1359.
date_created: 2022-09-26T13:12:48Z
date_updated: 2023-04-21T11:07:11Z
department:
- _id: '15'
- _id: '288'
- _id: '623'
- _id: '170'
- _id: '295'
- _id: '230'
- _id: '429'
- _id: '35'
- _id: '790'
doi: 10.3390/cryst12101359
intvolume: '        12'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: '1359'
project:
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '55'
  name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '168'
  name: 'TRR 142 - B07: TRR 142 - Subproject B07'
- _id: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '166'
  name: 'TRR 142 - A11: TRR 142 - Subproject A11'
publication: Crystals
publication_identifier:
  issn:
  - 2073-4352
status: public
title: 'DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression,
  and Its Connection to Gray Tracking'
type: journal_article
user_id: '171'
volume: 12
year: '2022'
...
---
_id: '34884'
article_number: '263601'
author:
- first_name: Nidhin
  full_name: Prasannan, Nidhin
  id: '71403'
  last_name: Prasannan
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
- 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: Prasannan N, Sperling J, Brecht B, Silberhorn C. Direct Measurement of Higher-Order
    Nonlinear Polarization Squeezing. <i>Physical Review Letters</i>. 2022;129(26).
    doi:<a href="https://doi.org/10.1103/physrevlett.129.263601">10.1103/physrevlett.129.263601</a>
  apa: Prasannan, N., Sperling, J., Brecht, B., &#38; Silberhorn, C. (2022). Direct
    Measurement of Higher-Order Nonlinear Polarization Squeezing. <i>Physical Review
    Letters</i>, <i>129</i>(26), Article 263601. <a href="https://doi.org/10.1103/physrevlett.129.263601">https://doi.org/10.1103/physrevlett.129.263601</a>
  bibtex: '@article{Prasannan_Sperling_Brecht_Silberhorn_2022, title={Direct Measurement
    of Higher-Order Nonlinear Polarization Squeezing}, volume={129}, DOI={<a href="https://doi.org/10.1103/physrevlett.129.263601">10.1103/physrevlett.129.263601</a>},
    number={26263601}, journal={Physical Review Letters}, publisher={American Physical
    Society (APS)}, author={Prasannan, Nidhin and Sperling, Jan and Brecht, Benjamin
    and Silberhorn, Christine}, year={2022} }'
  chicago: Prasannan, Nidhin, Jan Sperling, Benjamin Brecht, and Christine Silberhorn.
    “Direct Measurement of Higher-Order Nonlinear Polarization Squeezing.” <i>Physical
    Review Letters</i> 129, no. 26 (2022). <a href="https://doi.org/10.1103/physrevlett.129.263601">https://doi.org/10.1103/physrevlett.129.263601</a>.
  ieee: 'N. Prasannan, J. Sperling, B. Brecht, and C. Silberhorn, “Direct Measurement
    of Higher-Order Nonlinear Polarization Squeezing,” <i>Physical Review Letters</i>,
    vol. 129, no. 26, Art. no. 263601, 2022, doi: <a href="https://doi.org/10.1103/physrevlett.129.263601">10.1103/physrevlett.129.263601</a>.'
  mla: Prasannan, Nidhin, et al. “Direct Measurement of Higher-Order Nonlinear Polarization
    Squeezing.” <i>Physical Review Letters</i>, vol. 129, no. 26, 263601, American
    Physical Society (APS), 2022, doi:<a href="https://doi.org/10.1103/physrevlett.129.263601">10.1103/physrevlett.129.263601</a>.
  short: N. Prasannan, J. Sperling, B. Brecht, C. Silberhorn, Physical Review Letters
    129 (2022).
date_created: 2022-12-23T07:57:24Z
date_updated: 2023-04-20T15:15:18Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '288'
- _id: '230'
- _id: '35'
doi: 10.1103/physrevlett.129.263601
intvolume: '       129'
issue: '26'
keyword:
- General Physics and Astronomy
language:
- iso: eng
publication: Physical Review Letters
publication_identifier:
  issn:
  - 0031-9007
  - 1079-7114
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Direct Measurement of Higher-Order Nonlinear Polarization Squeezing
type: journal_article
user_id: '16199'
volume: 129
year: '2022'
...
---
_id: '32068'
abstract:
- lang: eng
  text: Inspired by plant grafting, grafted vortex beams can be formed through grafting
    two or more helical phase profiles of optical vortex beams. Recently, grafted
    perfect vortex beams (GPVBs) have attracted much attention due to their unique
    optical properties and potential applications. However, the current method to
    generate and manipulate GPVBs requires a complex and bulky optical system, hindering
    further investigation and limiting its practical applications. Here, a compact
    metasurface approach for generating and manipulating GPVBs in multiple channels
    is proposed and demonstrated, which eliminates the need for such a complex optical
    setup. A single metasurface is utilized to realize various superpositions of GPVBs
    with different combinations of topological charges in four channels, leading to
    asymmetric singularity distributions. The positions of singularities in the superimposed
    beam can be further modulated by introducing an initial phase difference in the
    metasurface design. The work demonstrates a compact metasurface platform that
    performs a sophisticated optical task that is very challenging with conventional
    optics, opening opportunities for the investigation and applications of GPVBs
    in a wide range of emerging application areas, such as singular optics and quantum
    science.
article_number: '2203044'
article_type: original
author:
- first_name: Hammad
  full_name: Ahmed, Hammad
  last_name: Ahmed
- first_name: Yuttana
  full_name: Intaravanne, Yuttana
  last_name: Intaravanne
- first_name: Yang
  full_name: Ming, Yang
  last_name: Ming
- first_name: Muhammad Afnan
  full_name: Ansari, Muhammad Afnan
  last_name: Ansari
- first_name: Gerald S.
  full_name: Buller, Gerald S.
  last_name: Buller
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Xianzhong
  full_name: Chen, Xianzhong
  last_name: Chen
citation:
  ama: Ahmed H, Intaravanne Y, Ming Y, et al. Multichannel Superposition of Grafted
    Perfect Vortex Beams. <i>Advanced Materials</i>. 2022;34(30). doi:<a href="https://doi.org/10.1002/adma.202203044">10.1002/adma.202203044</a>
  apa: Ahmed, H., Intaravanne, Y., Ming, Y., Ansari, M. A., Buller, G. S., Zentgraf,
    T., &#38; Chen, X. (2022). Multichannel Superposition of Grafted Perfect Vortex
    Beams. <i>Advanced Materials</i>, <i>34</i>(30), Article 2203044. <a href="https://doi.org/10.1002/adma.202203044">https://doi.org/10.1002/adma.202203044</a>
  bibtex: '@article{Ahmed_Intaravanne_Ming_Ansari_Buller_Zentgraf_Chen_2022, title={Multichannel
    Superposition of Grafted Perfect Vortex Beams}, volume={34}, DOI={<a href="https://doi.org/10.1002/adma.202203044">10.1002/adma.202203044</a>},
    number={302203044}, journal={Advanced Materials}, publisher={Wiley}, author={Ahmed,
    Hammad and Intaravanne, Yuttana and Ming, Yang and Ansari, Muhammad Afnan and
    Buller, Gerald S. and Zentgraf, Thomas and Chen, Xianzhong}, year={2022} }'
  chicago: Ahmed, Hammad, Yuttana Intaravanne, Yang Ming, Muhammad Afnan Ansari, Gerald
    S. Buller, Thomas Zentgraf, and Xianzhong Chen. “Multichannel Superposition of
    Grafted Perfect Vortex Beams.” <i>Advanced Materials</i> 34, no. 30 (2022). <a
    href="https://doi.org/10.1002/adma.202203044">https://doi.org/10.1002/adma.202203044</a>.
  ieee: 'H. Ahmed <i>et al.</i>, “Multichannel Superposition of Grafted Perfect Vortex
    Beams,” <i>Advanced Materials</i>, vol. 34, no. 30, Art. no. 2203044, 2022, doi:
    <a href="https://doi.org/10.1002/adma.202203044">10.1002/adma.202203044</a>.'
  mla: Ahmed, Hammad, et al. “Multichannel Superposition of Grafted Perfect Vortex
    Beams.” <i>Advanced Materials</i>, vol. 34, no. 30, 2203044, Wiley, 2022, doi:<a
    href="https://doi.org/10.1002/adma.202203044">10.1002/adma.202203044</a>.
  short: H. Ahmed, Y. Intaravanne, Y. Ming, M.A. Ansari, G.S. Buller, T. Zentgraf,
    X. Chen, Advanced Materials 34 (2022).
date_created: 2022-06-20T11:05:50Z
date_updated: 2023-05-12T11:20:44Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1002/adma.202203044
intvolume: '        34'
issue: '30'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
publication: Advanced Materials
publication_identifier:
  issn:
  - 0935-9648
  - 1521-4095
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Multichannel Superposition of Grafted Perfect Vortex Beams
type: journal_article
user_id: '30525'
volume: 34
year: '2022'
...
---
_id: '34238'
abstract:
- lang: eng
  text: "<jats:p>A monolithically integrated electronic-photonic Mach-Zehnder modulator
    is presented, incorporating electronic linear drivers along photonic components.
    An electro-optical 3 dB &amp; 6 dB bandwidth of 24 GHz and 34 GHz respectively
    was measured. The on-chip drivers decrease the V<jats:italic>\r\n      <jats:sub>π</jats:sub>\r\n
    \   </jats:italic> by a factor of 10.</jats:p>"
author:
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Hanjo
  full_name: Rhee, Hanjo
  last_name: Rhee
- first_name: Sarp
  full_name: Kerman, Sarp
  last_name: Kerman
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
citation:
  ama: 'Kress C, Schwabe T, Rhee H, Kerman S, Scheytt JC. Broadband Mach-Zehnder Modulator
    with Linear Driver in Electronic-Photonic Co-Integrated Platform. In: <i>Optica
    Advanced Photonics Congress 2022</i>. Optica Publishing Group; 2022. doi:<a href="https://doi.org/10.1364/iprsn.2022.im4c.1">10.1364/iprsn.2022.im4c.1</a>'
  apa: Kress, C., Schwabe, T., Rhee, H., Kerman, S., &#38; Scheytt, J. C. (2022).
    Broadband Mach-Zehnder Modulator with Linear Driver in Electronic-Photonic Co-Integrated
    Platform. <i>Optica Advanced Photonics Congress 2022</i>. <a href="https://doi.org/10.1364/iprsn.2022.im4c.1">https://doi.org/10.1364/iprsn.2022.im4c.1</a>
  bibtex: '@inproceedings{Kress_Schwabe_Rhee_Kerman_Scheytt_2022, title={Broadband
    Mach-Zehnder Modulator with Linear Driver in Electronic-Photonic Co-Integrated
    Platform}, DOI={<a href="https://doi.org/10.1364/iprsn.2022.im4c.1">10.1364/iprsn.2022.im4c.1</a>},
    booktitle={Optica Advanced Photonics Congress 2022}, publisher={Optica Publishing
    Group}, author={Kress, Christian and Schwabe, Tobias and Rhee, Hanjo and Kerman,
    Sarp and Scheytt, J. Christoph}, year={2022} }'
  chicago: Kress, Christian, Tobias Schwabe, Hanjo Rhee, Sarp Kerman, and J. Christoph
    Scheytt. “Broadband Mach-Zehnder Modulator with Linear Driver in Electronic-Photonic
    Co-Integrated Platform.” In <i>Optica Advanced Photonics Congress 2022</i>. Optica
    Publishing Group, 2022. <a href="https://doi.org/10.1364/iprsn.2022.im4c.1">https://doi.org/10.1364/iprsn.2022.im4c.1</a>.
  ieee: 'C. Kress, T. Schwabe, H. Rhee, S. Kerman, and J. C. Scheytt, “Broadband Mach-Zehnder
    Modulator with Linear Driver in Electronic-Photonic Co-Integrated Platform,” 2022,
    doi: <a href="https://doi.org/10.1364/iprsn.2022.im4c.1">10.1364/iprsn.2022.im4c.1</a>.'
  mla: Kress, Christian, et al. “Broadband Mach-Zehnder Modulator with Linear Driver
    in Electronic-Photonic Co-Integrated Platform.” <i>Optica Advanced Photonics Congress
    2022</i>, Optica Publishing Group, 2022, doi:<a href="https://doi.org/10.1364/iprsn.2022.im4c.1">10.1364/iprsn.2022.im4c.1</a>.
  short: 'C. Kress, T. Schwabe, H. Rhee, S. Kerman, J.C. Scheytt, in: Optica Advanced
    Photonics Congress 2022, Optica Publishing Group, 2022.'
date_created: 2022-12-06T11:04:43Z
date_updated: 2023-06-16T06:55:37Z
department:
- _id: '58'
- _id: '230'
- _id: '623'
doi: 10.1364/iprsn.2022.im4c.1
language:
- iso: eng
project:
- _id: '302'
  grant_number: '403154102'
  name: 'PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC'
- _id: '299'
  grant_number: 13N14882
  name: 'NyPhE: NyPhE - Nyquist Silicon Photonics Engine'
publication: Optica Advanced Photonics Congress 2022
publication_status: published
publisher: Optica Publishing Group
status: public
title: Broadband Mach-Zehnder Modulator with Linear Driver in Electronic-Photonic
  Co-Integrated Platform
type: conference
user_id: '13256'
year: '2022'
...
