---
_id: '62980'
abstract:
- lang: eng
text: We introduce a new classification of multimode states with a fixed
number of photons. This classification is based on the factorizability of homogeneous
multivariate polynomials and is invariant under unitary transformations. The classes
physically correspond to field excitations in terms of single and multiple photons,
each of which is in an arbitrary irreducible superposition of quantized modes.
We further show how the transitions between classes are rendered possible by photon
addition, photon subtraction, and photon-projection nonlinearities. We explicitly
put forward a design for a multilayer interferometer in which the states for different
classes can be generated with state-of-the-art experimental techniques. Limitations
of the proposed designs are analyzed using the introduced classification, providing
a benchmark for the robustness of certain states and classes.
article_number: '033062'
author:
- first_name: Denis A.
full_name: Kopylov, Denis A.
last_name: Kopylov
- first_name: Christian
full_name: Offen, Christian
id: '85279'
last_name: Offen
orcid: 0000-0002-5940-8057
- first_name: Laura
full_name: Ares, Laura
last_name: Ares
- first_name: Boris Edgar
full_name: Wembe Moafo, Boris Edgar
id: '95394'
last_name: Wembe Moafo
- first_name: Sina
full_name: Ober-Blöbaum, Sina
id: '16494'
last_name: Ober-Blöbaum
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Polina R.
full_name: Sharapova, Polina R.
id: '60286'
last_name: Sharapova
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
citation:
ama: Kopylov DA, Offen C, Ares L, et al. Multiphoton, multimode state classification
for nonlinear optical circuits. Physical Review Research. 2025;7(3). doi:10.1103/sv6z-v1gk
apa: Kopylov, D. A., Offen, C., Ares, L., Wembe Moafo, B. E., Ober-Blöbaum, S.,
Meier, T., Sharapova, P. R., & Sperling, J. (2025). Multiphoton, multimode
state classification for nonlinear optical circuits. Physical Review Research,
7(3), Article 033062. https://doi.org/10.1103/sv6z-v1gk
bibtex: '@article{Kopylov_Offen_Ares_Wembe Moafo_Ober-Blöbaum_Meier_Sharapova_Sperling_2025,
title={Multiphoton, multimode state classification for nonlinear optical circuits},
volume={7}, DOI={10.1103/sv6z-v1gk},
number={3033062}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Kopylov, Denis A. and Offen, Christian and Ares, Laura
and Wembe Moafo, Boris Edgar and Ober-Blöbaum, Sina and Meier, Torsten and Sharapova,
Polina R. and Sperling, Jan}, year={2025} }'
chicago: Kopylov, Denis A., Christian Offen, Laura Ares, Boris Edgar Wembe Moafo,
Sina Ober-Blöbaum, Torsten Meier, Polina R. Sharapova, and Jan Sperling. “Multiphoton,
Multimode State Classification for Nonlinear Optical Circuits.” Physical Review
Research 7, no. 3 (2025). https://doi.org/10.1103/sv6z-v1gk.
ieee: 'D. A. Kopylov et al., “Multiphoton, multimode state classification
for nonlinear optical circuits,” Physical Review Research, vol. 7, no.
3, Art. no. 033062, 2025, doi: 10.1103/sv6z-v1gk.'
mla: Kopylov, Denis A., et al. “Multiphoton, Multimode State Classification for
Nonlinear Optical Circuits.” Physical Review Research, vol. 7, no. 3, 033062,
American Physical Society (APS), 2025, doi:10.1103/sv6z-v1gk.
short: D.A. Kopylov, C. Offen, L. Ares, B.E. Wembe Moafo, S. Ober-Blöbaum, T. Meier,
P.R. Sharapova, J. Sperling, Physical Review Research 7 (2025).
date_created: 2025-12-09T09:08:39Z
date_updated: 2025-12-09T09:10:01Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '706'
- _id: '636'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1103/sv6z-v1gk
intvolume: ' 7'
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: '174'
name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
Systemen: Eine theoretische Analyse'
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Multiphoton, multimode state classification for nonlinear optical circuits
type: journal_article
user_id: '16199'
volume: 7
year: '2025'
...
---
_id: '62979'
abstract:
- lang: eng
text: We introduce a new classification of multimode states with a fixed number
of photons. This classification is based on the factorizability of homogeneous
multivariate polynomials and is invariant under unitary transformations. The classes
physically correspond to field excitations in terms of single and multiple photons,
each of which being in an arbitrary irreducible superposition of quantized modes.
We further show how the transitions between classes are rendered possible by photon
addition, photon subtraction, and photon-projection nonlinearities. We explicitly
put forward a design for a multilayer interferometer in which the states for different
classes can be generated with state-of-the-art experimental techniques. Limitations
of the proposed designs are analyzed using the introduced classification, providing
a benchmark for the robustness of certain states and classes.
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Polina R.
full_name: Sharapova, Polina R.
id: '60286'
last_name: Sharapova
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
- first_name: Sina
full_name: Ober-Blöbaum, Sina
id: '16494'
last_name: Ober-Blöbaum
- first_name: Boris Edgar
full_name: Wembe Moafo, Boris Edgar
id: '95394'
last_name: Wembe Moafo
- first_name: Christian
full_name: Offen, Christian
id: '85279'
last_name: Offen
orcid: 0000-0002-5940-8057
citation:
ama: Meier T, Sharapova PR, Sperling J, Ober-Blöbaum S, Wembe Moafo BE, Offen C.
Multiphoton, multimode state classification for nonlinear optical circuits. Published
online 2025.
apa: Meier, T., Sharapova, P. R., Sperling, J., Ober-Blöbaum, S., Wembe Moafo, B.
E., & Offen, C. (2025). Multiphoton, multimode state classification for
nonlinear optical circuits.
bibtex: '@article{Meier_Sharapova_Sperling_Ober-Blöbaum_Wembe Moafo_Offen_2025,
title={Multiphoton, multimode state classification for nonlinear optical circuits},
author={Meier, Torsten and Sharapova, Polina R. and Sperling, Jan and Ober-Blöbaum,
Sina and Wembe Moafo, Boris Edgar and Offen, Christian}, year={2025} }'
chicago: Meier, Torsten, Polina R. Sharapova, Jan Sperling, Sina Ober-Blöbaum, Boris
Edgar Wembe Moafo, and Christian Offen. “Multiphoton, Multimode State Classification
for Nonlinear Optical Circuits,” 2025.
ieee: T. Meier, P. R. Sharapova, J. Sperling, S. Ober-Blöbaum, B. E. Wembe Moafo,
and C. Offen, “Multiphoton, multimode state classification for nonlinear optical
circuits.” 2025.
mla: Meier, Torsten, et al. Multiphoton, Multimode State Classification for Nonlinear
Optical Circuits. 2025.
short: T. Meier, P.R. Sharapova, J. Sperling, S. Ober-Blöbaum, B.E. Wembe Moafo,
C. Offen, (2025).
date_created: 2025-12-09T08:59:27Z
date_updated: 2025-12-09T09:10:23Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '706'
- _id: '636'
- _id: '230'
- _id: '623'
- _id: '429'
- _id: '35'
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: '174'
name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
Systemen: Eine theoretische Analyse'
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
status: public
title: Multiphoton, multimode state classification for nonlinear optical circuits
type: preprint
user_id: '16199'
year: '2025'
...
---
_id: '63021'
abstract:
- lang: eng
text: Bell measurements, entailing the projection onto one of the Bell states,
play a key role in quantum information and communication, where the outcome of
a variety of protocols crucially depends on the success probability of such measurements.
Although in the case of qubit systems, Bell measurements can be implemented using
only linear optical components, the same result is no longer true for qudits,
where at least the use of ancillary photons is required. In order to circumvent
this limitation, one possibility is to introduce nonlinear effects. In this work,
we adopt the latter approach and propose a scalable Bell measurement scheme for
high-dimensional states, exploiting multiple squeezer devices applied to a linear
optical circuit for discriminating the different Bell states. Our approach does
not require ancillary photons, is not limited by the dimension of the quantum
states, and is experimentally scalable, thus paving the way toward the realization
of an effective high-dimensional Bell measurement.
article_number: '023038'
author:
- first_name: Luca
full_name: Bianchi, Luca
last_name: Bianchi
- first_name: Carlo
full_name: Marconi, Carlo
last_name: Marconi
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
- first_name: Davide
full_name: Bacco, Davide
last_name: Bacco
citation:
ama: Bianchi L, Marconi C, Sperling J, Bacco D. Predetection squeezing as a resource
for high-dimensional Bell-state measurements. Physical Review Research.
2025;7(2). doi:10.1103/physrevresearch.7.023038
apa: Bianchi, L., Marconi, C., Sperling, J., & Bacco, D. (2025). Predetection
squeezing as a resource for high-dimensional Bell-state measurements. Physical
Review Research, 7(2), Article 023038. https://doi.org/10.1103/physrevresearch.7.023038
bibtex: '@article{Bianchi_Marconi_Sperling_Bacco_2025, title={Predetection squeezing
as a resource for high-dimensional Bell-state measurements}, volume={7}, DOI={10.1103/physrevresearch.7.023038},
number={2023038}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Bianchi, Luca and Marconi, Carlo and Sperling, Jan and
Bacco, Davide}, year={2025} }'
chicago: Bianchi, Luca, Carlo Marconi, Jan Sperling, and Davide Bacco. “Predetection
Squeezing as a Resource for High-Dimensional Bell-State Measurements.” Physical
Review Research 7, no. 2 (2025). https://doi.org/10.1103/physrevresearch.7.023038.
ieee: 'L. Bianchi, C. Marconi, J. Sperling, and D. Bacco, “Predetection squeezing
as a resource for high-dimensional Bell-state measurements,” Physical Review
Research, vol. 7, no. 2, Art. no. 023038, 2025, doi: 10.1103/physrevresearch.7.023038.'
mla: Bianchi, Luca, et al. “Predetection Squeezing as a Resource for High-Dimensional
Bell-State Measurements.” Physical Review Research, vol. 7, no. 2, 023038,
American Physical Society (APS), 2025, doi:10.1103/physrevresearch.7.023038.
short: L. Bianchi, C. Marconi, J. Sperling, D. Bacco, Physical Review Research 7
(2025).
date_created: 2025-12-10T13:34:53Z
date_updated: 2025-12-10T13:36:11Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '429'
doi: 10.1103/physrevresearch.7.023038
intvolume: ' 7'
issue: '2'
language:
- iso: eng
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Predetection squeezing as a resource for high-dimensional Bell-state measurements
type: journal_article
user_id: '75127'
volume: 7
year: '2025'
...
---
_id: '62859'
abstract:
- lang: eng
text: Frequency-filtered photon correlations have been proven to be extremely
useful in grasping how the detection process alters photon statistics. Harnessing
the spectral correlations also permits refinement of the emission and unraveling
of previously hidden strong correlations in a plethora of quantum-optical systems
under continuous-wave excitation. In this work, we investigate such correlations
for time-dependent excitation and develop a methodology to compute efficiently
time-integrated correlations, which are at the heart of the photon-counting theory,
and subsequently apply it to analyze the photon emission of pulsed systems. By
combining this formalism with the —which facilitates frequency-resolved correlations—we
demonstrate how spectral filtering enhances single-photon purity and suppresses
multiphoton noise in time-bin-encoded quantum states. Specifically, filtering
the central spectral peak of a dynamically driven two-level system boosts temporal
coherence and improves the fidelity of time-bin entanglement preparation, even
under conditions favoring multiphoton emission. These results establish spectral
filtering as a critical tool for tailoring photon statistics in pulsed quantum
light sources.
article_number: '033296'
author:
- first_name: Santiago
full_name: Bermúdez-Feijóo, Santiago
last_name: Bermúdez-Feijóo
- first_name: Eduardo
full_name: Zubizarreta Casalengua, Eduardo
last_name: Zubizarreta Casalengua
- first_name: Kai
full_name: Müller, Kai
last_name: Müller
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
citation:
ama: Bermúdez-Feijóo S, Zubizarreta Casalengua E, Müller K, Jöns K. Spectral correlations
of dynamical resonance fluorescence. Physical Review Research. 2025;7(3).
doi:10.1103/jmy9-bd3l
apa: Bermúdez-Feijóo, S., Zubizarreta Casalengua, E., Müller, K., & Jöns, K.
(2025). Spectral correlations of dynamical resonance fluorescence. Physical
Review Research, 7(3), Article 033296. https://doi.org/10.1103/jmy9-bd3l
bibtex: '@article{Bermúdez-Feijóo_Zubizarreta Casalengua_Müller_Jöns_2025, title={Spectral
correlations of dynamical resonance fluorescence}, volume={7}, DOI={10.1103/jmy9-bd3l},
number={3033296}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Bermúdez-Feijóo, Santiago and Zubizarreta Casalengua,
Eduardo and Müller, Kai and Jöns, Klaus}, year={2025} }'
chicago: Bermúdez-Feijóo, Santiago, Eduardo Zubizarreta Casalengua, Kai Müller,
and Klaus Jöns. “Spectral Correlations of Dynamical Resonance Fluorescence.” Physical
Review Research 7, no. 3 (2025). https://doi.org/10.1103/jmy9-bd3l.
ieee: 'S. Bermúdez-Feijóo, E. Zubizarreta Casalengua, K. Müller, and K. Jöns, “Spectral
correlations of dynamical resonance fluorescence,” Physical Review Research,
vol. 7, no. 3, Art. no. 033296, 2025, doi: 10.1103/jmy9-bd3l.'
mla: Bermúdez-Feijóo, Santiago, et al. “Spectral Correlations of Dynamical Resonance
Fluorescence.” Physical Review Research, vol. 7, no. 3, 033296, American
Physical Society (APS), 2025, doi:10.1103/jmy9-bd3l.
short: S. Bermúdez-Feijóo, E. Zubizarreta Casalengua, K. Müller, K. Jöns, Physical
Review Research 7 (2025).
date_created: 2025-12-04T12:19:04Z
date_updated: 2025-12-11T12:52:24Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
doi: 10.1103/jmy9-bd3l
intvolume: ' 7'
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: Spectral correlations of dynamical resonance fluorescence
type: journal_article
user_id: '48188'
volume: 7
year: '2025'
...
---
_id: '63050'
application_number: '18957248'
author:
- first_name: Nicholas Alexander
full_name: Güsken, Nicholas Alexander
id: '112030'
last_name: Güsken
orcid: 0000-0002-4816-0666
citation:
ama: Güsken NA. Beam steering device and electronic apparatus including the same.
Published online 2025.
apa: Güsken, N. A. (2025). Beam steering device and electronic apparatus including
the same.
bibtex: '@article{Güsken_2025, title={Beam steering device and electronic apparatus
including the same}, author={Güsken, Nicholas Alexander}, year={2025} }'
chicago: Güsken, Nicholas Alexander. “Beam Steering Device and Electronic Apparatus
Including the Same,” 2025.
ieee: N. A. Güsken, “Beam steering device and electronic apparatus including the
same.” 2025.
mla: Güsken, Nicholas Alexander. Beam Steering Device and Electronic Apparatus
Including the Same. 2025.
short: N.A. Güsken, (2025).
date_created: 2025-12-11T20:43:18Z
date_updated: 2025-12-11T20:46:30Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
ipc: US20250172751A1
ipn: '18957248'
publication_date: 2025/05/29
status: public
title: Beam steering device and electronic apparatus including the same
type: patent
user_id: '112030'
year: '2025'
...
---
_id: '62269'
abstract:
- lang: eng
text: The titanium in-diffused lithium niobate waveguide platform is well-established
for reliable prototyping and packaging of many quantum photonic components at
room temperature. Nevertheless, compatibility with certain quantum light sources
and superconducting detectors requires operation under cryogenic conditions. We
characterize alterations in phase-matching and mode guiding of a non-degenerate
spontaneous parametric down-conversion process emitting around 1556 nm and 950 nm,
under cryogenic conditions. Despite the effects of pyroelectricity and photorefraction,
the spectral properties match our theoretical model. Nevertheless, these effects
cause small but significant variations within and between cooling cycles. These
measurements provide a first benchmark against which other nonlinear photonic
integration platforms, such as thin-film lithium niobate, can be compared.
article_number: '50451'
article_type: original
author:
- first_name: Nina Amelie
full_name: Lange, Nina Amelie
id: '56843'
last_name: Lange
orcid: 0000-0001-6624-7098
- first_name: Sebastian
full_name: Lengeling, Sebastian
id: '44373'
last_name: Lengeling
- first_name: Philipp
full_name: Mues, Philipp
id: '49772'
last_name: Mues
orcid: 0000-0003-0643-7636
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Werner
full_name: Ridder, Werner
id: '63574'
last_name: Ridder
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- 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: Lange NA, Lengeling S, Mues P, et al. Widely non-degenerate nonlinear frequency
conversion in cryogenic titanium in-diffused lithium niobate waveguides. Optics
Express. 2025;33(24). doi:10.1364/oe.578108
apa: Lange, N. A., Lengeling, S., Mues, P., Quiring, V., Ridder, W., Eigner, C.,
Herrmann, H., Silberhorn, C., & Bartley, T. (2025). Widely non-degenerate
nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate
waveguides. Optics Express, 33(24), Article 50451. https://doi.org/10.1364/oe.578108
bibtex: '@article{Lange_Lengeling_Mues_Quiring_Ridder_Eigner_Herrmann_Silberhorn_Bartley_2025,
title={Widely non-degenerate nonlinear frequency conversion in cryogenic titanium
in-diffused lithium niobate waveguides}, volume={33}, DOI={10.1364/oe.578108},
number={2450451}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Lange, Nina Amelie and Lengeling, Sebastian and Mues, Philipp and Quiring,
Viktor and Ridder, Werner and Eigner, Christof and Herrmann, Harald and Silberhorn,
Christine and Bartley, Tim}, year={2025} }'
chicago: Lange, Nina Amelie, Sebastian Lengeling, Philipp Mues, Viktor Quiring,
Werner Ridder, Christof Eigner, Harald Herrmann, Christine Silberhorn, and Tim
Bartley. “Widely Non-Degenerate Nonlinear Frequency Conversion in Cryogenic Titanium
in-Diffused Lithium Niobate Waveguides.” Optics Express 33, no. 24 (2025).
https://doi.org/10.1364/oe.578108.
ieee: 'N. A. Lange et al., “Widely non-degenerate nonlinear frequency conversion
in cryogenic titanium in-diffused lithium niobate waveguides,” Optics Express,
vol. 33, no. 24, Art. no. 50451, 2025, doi: 10.1364/oe.578108.'
mla: Lange, Nina Amelie, et al. “Widely Non-Degenerate Nonlinear Frequency Conversion
in Cryogenic Titanium in-Diffused Lithium Niobate Waveguides.” Optics Express,
vol. 33, no. 24, 50451, Optica Publishing Group, 2025, doi:10.1364/oe.578108.
short: N.A. Lange, S. Lengeling, P. Mues, V. Quiring, W. Ridder, C. Eigner, H. Herrmann,
C. Silberhorn, T. Bartley, Optics Express 33 (2025).
date_created: 2025-11-20T10:35:35Z
date_updated: 2025-12-12T12:13:45Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1364/oe.578108
intvolume: ' 33'
issue: '24'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '171'
name: 'TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher
Filterung unter Verwendung integrierter supraleitender Detektoren'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Widely non-degenerate nonlinear frequency conversion in cryogenic titanium
in-diffused lithium niobate waveguides
type: journal_article
user_id: '49683'
volume: 33
year: '2025'
...
---
_id: '60466'
author:
- first_name: Julian
full_name: Brockmeier, Julian
id: '44807'
last_name: Brockmeier
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Nina Amelie
full_name: Lange, Nina Amelie
id: '56843'
last_name: Lange
orcid: 0000-0001-6624-7098
- first_name: Jan Philipp
full_name: Höpker, Jan Philipp
id: '33913'
last_name: Höpker
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- 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: Brockmeier J, Schapeler T, Lange NA, et al. Harnessing temporal dispersion
for integrated pump filtering in spontaneous heralded single-photon generation
processes. New Journal of Physics. Published online 2025. doi:10.1088/1367-2630/ade46c
apa: Brockmeier, J., Schapeler, T., Lange, N. A., Höpker, J. P., Herrmann, H., Silberhorn,
C., & Bartley, T. (2025). Harnessing temporal dispersion for integrated pump
filtering in spontaneous heralded single-photon generation processes. New Journal
of Physics. https://doi.org/10.1088/1367-2630/ade46c
bibtex: '@article{Brockmeier_Schapeler_Lange_Höpker_Herrmann_Silberhorn_Bartley_2025,
title={Harnessing temporal dispersion for integrated pump filtering in spontaneous
heralded single-photon generation processes}, DOI={10.1088/1367-2630/ade46c},
journal={New Journal of Physics}, author={Brockmeier, Julian and Schapeler, Timon
and Lange, Nina Amelie and Höpker, Jan Philipp and Herrmann, Harald and Silberhorn,
Christine and Bartley, Tim}, year={2025} }'
chicago: Brockmeier, Julian, Timon Schapeler, Nina Amelie Lange, Jan Philipp Höpker,
Harald Herrmann, Christine Silberhorn, and Tim Bartley. “Harnessing Temporal Dispersion
for Integrated Pump Filtering in Spontaneous Heralded Single-Photon Generation
Processes.” New Journal of Physics, 2025. https://doi.org/10.1088/1367-2630/ade46c.
ieee: 'J. Brockmeier et al., “Harnessing temporal dispersion for integrated
pump filtering in spontaneous heralded single-photon generation processes,” New
Journal of Physics, 2025, doi: 10.1088/1367-2630/ade46c.'
mla: Brockmeier, Julian, et al. “Harnessing Temporal Dispersion for Integrated Pump
Filtering in Spontaneous Heralded Single-Photon Generation Processes.” New
Journal of Physics, 2025, doi:10.1088/1367-2630/ade46c.
short: J. Brockmeier, T. Schapeler, N.A. Lange, J.P. Höpker, H. Herrmann, C. Silberhorn,
T. Bartley, New Journal of Physics (2025).
date_created: 2025-06-30T08:58:37Z
date_updated: 2025-12-15T09:21:29Z
department:
- _id: '15'
- _id: '623'
doi: 10.1088/1367-2630/ade46c
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '171'
name: 'TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher
Filterung unter Verwendung integrierter supraleitender Detektoren'
publication: New Journal of Physics
status: public
title: Harnessing temporal dispersion for integrated pump filtering in spontaneous
heralded single-photon generation processes
type: journal_article
user_id: '56843'
year: '2025'
...
---
_id: '63160'
article_number: '245304'
author:
- first_name: Hendrik
full_name: Rose, Hendrik
id: '55958'
last_name: Rose
orcid: 0000-0002-3079-5428
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: 'Rose H, Schumacher S, Meier T. Microscopic approach to the quantized light-matter
interaction in semiconductor nanostructures: Complex coupled dynamics of excitons,
biexcitons, and photons. Physical Review B. 2025;112(24). doi:10.1103/528f-7smh'
apa: 'Rose, H., Schumacher, S., & Meier, T. (2025). Microscopic approach to
the quantized light-matter interaction in semiconductor nanostructures: Complex
coupled dynamics of excitons, biexcitons, and photons. Physical Review B,
112(24), Article 245304. https://doi.org/10.1103/528f-7smh'
bibtex: '@article{Rose_Schumacher_Meier_2025, title={Microscopic approach to the
quantized light-matter interaction in semiconductor nanostructures: Complex coupled
dynamics of excitons, biexcitons, and photons}, volume={112}, DOI={10.1103/528f-7smh},
number={24245304}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Rose, Hendrik and Schumacher, Stefan and Meier, Torsten}, year={2025}
}'
chicago: 'Rose, Hendrik, Stefan Schumacher, and Torsten Meier. “Microscopic Approach
to the Quantized Light-Matter Interaction in Semiconductor Nanostructures: Complex
Coupled Dynamics of Excitons, Biexcitons, and Photons.” Physical Review B
112, no. 24 (2025). https://doi.org/10.1103/528f-7smh.'
ieee: 'H. Rose, S. Schumacher, and T. Meier, “Microscopic approach to the quantized
light-matter interaction in semiconductor nanostructures: Complex coupled dynamics
of excitons, biexcitons, and photons,” Physical Review B, vol. 112, no.
24, Art. no. 245304, 2025, doi: 10.1103/528f-7smh.'
mla: 'Rose, Hendrik, et al. “Microscopic Approach to the Quantized Light-Matter
Interaction in Semiconductor Nanostructures: Complex Coupled Dynamics of Excitons,
Biexcitons, and Photons.” Physical Review B, vol. 112, no. 24, 245304,
American Physical Society (APS), 2025, doi:10.1103/528f-7smh.'
short: H. Rose, S. Schumacher, T. Meier, Physical Review B 112 (2025).
date_created: 2025-12-16T15:50:42Z
date_updated: 2025-12-16T15:52:55Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '297'
- _id: '623'
- _id: '429'
- _id: '230'
- _id: '35'
- _id: '27'
doi: 10.1103/528f-7smh
intvolume: ' 112'
issue: '24'
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '54'
name: TRR 142 - Project Area A
- _id: '59'
name: 'TRR 142; TP A02: Nichtlineare Spektroskopie von Halbleiter-Nanostrukturen
mit Quantenlicht'
- _id: '445'
name: Hochleistungsrechner Noctua in Paderborn
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Microscopic approach to the quantized light-matter interaction in semiconductor
nanostructures: Complex coupled dynamics of excitons, biexcitons, and photons'
type: journal_article
user_id: '16199'
volume: 112
year: '2025'
...
---
_id: '62861'
article_number: '10028'
author:
- first_name: Alessandro
full_name: Laneve, Alessandro
last_name: Laneve
- first_name: Giuseppe
full_name: Ronco, Giuseppe
last_name: Ronco
- first_name: Mattia
full_name: Beccaceci, Mattia
last_name: Beccaceci
- first_name: Paolo
full_name: Barigelli, Paolo
last_name: Barigelli
- first_name: Francesco
full_name: Salusti, Francesco
id: '94793'
last_name: Salusti
- first_name: Nicolas
full_name: Claro-Rodriguez, Nicolas
last_name: Claro-Rodriguez
- first_name: Giorgio
full_name: De Pascalis, Giorgio
last_name: De Pascalis
- first_name: Alessia
full_name: Suprano, Alessia
last_name: Suprano
- first_name: Leone
full_name: Chiaudano, Leone
last_name: Chiaudano
- first_name: Eva
full_name: Schöll, Eva
last_name: Schöll
- first_name: Lukas
full_name: Hanschke, Lukas
last_name: Hanschke
- first_name: Tobias M.
full_name: Krieger, Tobias M.
last_name: Krieger
- first_name: Quirin
full_name: Buchinger, Quirin
last_name: Buchinger
- first_name: Saimon F.
full_name: Covre da Silva, Saimon F.
last_name: Covre da Silva
- first_name: Julia
full_name: Neuwirth, Julia
last_name: Neuwirth
- first_name: Sandra
full_name: Stroj, Sandra
last_name: Stroj
- first_name: Sven
full_name: Höfling, Sven
last_name: Höfling
- first_name: Tobias
full_name: Huber-Loyola, Tobias
last_name: Huber-Loyola
- first_name: Mario A.
full_name: Usuga Castaneda, Mario A.
last_name: Usuga Castaneda
- first_name: Gonzalo
full_name: Carvacho, Gonzalo
last_name: Carvacho
- first_name: Nicolò
full_name: Spagnolo, Nicolò
last_name: Spagnolo
- first_name: Michele B.
full_name: Rota, Michele B.
last_name: Rota
- first_name: Francesco
full_name: Basso Basset, Francesco
last_name: Basso Basset
- first_name: Armando
full_name: Rastelli, Armando
last_name: Rastelli
- first_name: Fabio
full_name: Sciarrino, Fabio
last_name: Sciarrino
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Rinaldo
full_name: Trotta, Rinaldo
last_name: Trotta
citation:
ama: Laneve A, Ronco G, Beccaceci M, et al. Quantum teleportation with dissimilar
quantum dots over a hybrid quantum network. Nature Communications. 2025;16(1).
doi:10.1038/s41467-025-65911-9
apa: Laneve, A., Ronco, G., Beccaceci, M., Barigelli, P., Salusti, F., Claro-Rodriguez,
N., De Pascalis, G., Suprano, A., Chiaudano, L., Schöll, E., Hanschke, L., Krieger,
T. M., Buchinger, Q., Covre da Silva, S. F., Neuwirth, J., Stroj, S., Höfling,
S., Huber-Loyola, T., Usuga Castaneda, M. A., … Trotta, R. (2025). Quantum teleportation
with dissimilar quantum dots over a hybrid quantum network. Nature Communications,
16(1), Article 10028. https://doi.org/10.1038/s41467-025-65911-9
bibtex: '@article{Laneve_Ronco_Beccaceci_Barigelli_Salusti_Claro-Rodriguez_De Pascalis_Suprano_Chiaudano_Schöll_et
al._2025, title={Quantum teleportation with dissimilar quantum dots over a hybrid
quantum network}, volume={16}, DOI={10.1038/s41467-025-65911-9},
number={110028}, journal={Nature Communications}, publisher={Springer Science
and Business Media LLC}, author={Laneve, Alessandro and Ronco, Giuseppe and Beccaceci,
Mattia and Barigelli, Paolo and Salusti, Francesco and Claro-Rodriguez, Nicolas
and De Pascalis, Giorgio and Suprano, Alessia and Chiaudano, Leone and Schöll,
Eva and et al.}, year={2025} }'
chicago: Laneve, Alessandro, Giuseppe Ronco, Mattia Beccaceci, Paolo Barigelli,
Francesco Salusti, Nicolas Claro-Rodriguez, Giorgio De Pascalis, et al. “Quantum
Teleportation with Dissimilar Quantum Dots over a Hybrid Quantum Network.” Nature
Communications 16, no. 1 (2025). https://doi.org/10.1038/s41467-025-65911-9.
ieee: 'A. Laneve et al., “Quantum teleportation with dissimilar quantum dots
over a hybrid quantum network,” Nature Communications, vol. 16, no. 1,
Art. no. 10028, 2025, doi: 10.1038/s41467-025-65911-9.'
mla: Laneve, Alessandro, et al. “Quantum Teleportation with Dissimilar Quantum Dots
over a Hybrid Quantum Network.” Nature Communications, vol. 16, no. 1,
10028, Springer Science and Business Media LLC, 2025, doi:10.1038/s41467-025-65911-9.
short: A. Laneve, G. Ronco, M. Beccaceci, P. Barigelli, F. Salusti, N. Claro-Rodriguez,
G. De Pascalis, A. Suprano, L. Chiaudano, E. Schöll, L. Hanschke, T.M. Krieger,
Q. Buchinger, S.F. Covre da Silva, J. Neuwirth, S. Stroj, S. Höfling, T. Huber-Loyola,
M.A. Usuga Castaneda, G. Carvacho, N. Spagnolo, M.B. Rota, F. Basso Basset, A.
Rastelli, F. Sciarrino, K. Jöns, R. Trotta, Nature Communications 16 (2025).
date_created: 2025-12-04T12:20:57Z
date_updated: 2025-12-17T11:36:14Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
doi: 10.1038/s41467-025-65911-9
intvolume: ' 16'
issue: '1'
language:
- iso: eng
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Quantum teleportation with dissimilar quantum dots over a hybrid quantum network
type: journal_article
user_id: '48188'
volume: 16
year: '2025'
...
---
_id: '63192'
abstract:
- lang: eng
text: Lithium niobate (LiNbO3) is a widely used material with several desirable
physical properties, such as high second-order nonlinear optical and strong electro-optical
effects. Thus LiNbO3 is used for various applications such as electro-optic modulation
or nonlinear frequency conversion and mixing. But LiNbO3 also exhibits a strong
photorefractive effect, which limits the intensity of the optical fields involved.
Various approaches to reduce the photorefractive effect have been investigated,
such as increasing the temperature, doping the crystal or using different waveguide
designs in LiNbO3. Here, we present an analysis of the approach to increase the
photorefractive damage threshold by using different waveguide designs. Contrary
to previous claims and investigations, our SHG measurements revealed no significant
difference in resistance to photorefractive damage when comparing conventional
Ti-doped channel waveguides and Ti-doped diced ridge waveguides in LiNbO3. Furthermore,
we have investigated the effect of photorefractive cleaning and curing using a
light field at 532 nm. Here, we observe a reduction in the photorefractive effect
at room temperature during and after SHG measurements, which is an easy alternative
to conventional approaches.
article_number: '114260'
article_type: original
author:
- first_name: Michelle
full_name: Kirsch, Michelle
id: '69553'
last_name: Kirsch
- first_name: Christian
full_name: Kießler, Christian
id: '44252'
last_name: Kießler
- first_name: Sebastian
full_name: Lengeling, Sebastian
id: '44373'
last_name: Lengeling
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Kirsch M, Kießler C, Lengeling S, et al. Photorefraction and in-situ optical
cleaning in various types of LiNbO3 waveguides. Optics & Laser Technology.
2025;193. doi:10.1016/j.optlastec.2025.114260
apa: Kirsch, M., Kießler, C., Lengeling, S., Stefszky, M., Eigner, C., Herrmann,
H., & Silberhorn, C. (2025). Photorefraction and in-situ optical cleaning
in various types of LiNbO3 waveguides. Optics & Laser Technology, 193,
Article 114260. https://doi.org/10.1016/j.optlastec.2025.114260
bibtex: '@article{Kirsch_Kießler_Lengeling_Stefszky_Eigner_Herrmann_Silberhorn_2025,
title={Photorefraction and in-situ optical cleaning in various types of LiNbO3
waveguides}, volume={193}, DOI={10.1016/j.optlastec.2025.114260},
number={114260}, journal={Optics & Laser Technology}, publisher={Elsevier
BV}, author={Kirsch, Michelle and Kießler, Christian and Lengeling, Sebastian
and Stefszky, Michael and Eigner, Christof and Herrmann, Harald and Silberhorn,
Christine}, year={2025} }'
chicago: Kirsch, Michelle, Christian Kießler, Sebastian Lengeling, Michael Stefszky,
Christof Eigner, Harald Herrmann, and Christine Silberhorn. “Photorefraction and
In-Situ Optical Cleaning in Various Types of LiNbO3 Waveguides.” Optics &
Laser Technology 193 (2025). https://doi.org/10.1016/j.optlastec.2025.114260.
ieee: 'M. Kirsch et al., “Photorefraction and in-situ optical cleaning in
various types of LiNbO3 waveguides,” Optics & Laser Technology, vol.
193, Art. no. 114260, 2025, doi: 10.1016/j.optlastec.2025.114260.'
mla: Kirsch, Michelle, et al. “Photorefraction and In-Situ Optical Cleaning in Various
Types of LiNbO3 Waveguides.” Optics & Laser Technology, vol. 193, 114260,
Elsevier BV, 2025, doi:10.1016/j.optlastec.2025.114260.
short: M. Kirsch, C. Kießler, S. Lengeling, M. Stefszky, C. Eigner, H. Herrmann,
C. Silberhorn, Optics & Laser Technology 193 (2025).
date_created: 2025-12-18T08:17:57Z
date_updated: 2025-12-18T08:27:13Z
department:
- _id: '288'
- _id: '623'
- _id: '15'
doi: 10.1016/j.optlastec.2025.114260
intvolume: ' 193'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S0030399225018511?via%3Dihub
oa: '1'
publication: Optics & Laser Technology
publication_identifier:
issn:
- 0030-3992
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides
type: journal_article
user_id: '69553'
volume: 193
year: '2025'
...
---
_id: '63213'
abstract:
- lang: eng
text: 'Quantum uncertainty relations impose fundamental limits on the joint
knowledge that can be acquired from complementary observables: Perfect knowledge
of a quantum state in one basis implies maximal indetermination in all other mutually
unbiased bases (MUBs). Uncertainty relations derived from joint properties of
the MUBs are generally assumed to be uniform, irrespective of the specific observables
chosen within a set. In this work, we demonstrate instead that the uncertainty
relations can depend on the choice of observables. Through both experimental observation
and numerical methods, we show that selecting different sets of three MUBs in
a five-dimensional quantum system results in distinct uncertainty bounds, i.e.,
in varying degrees of complementarity, in terms of both entropy and variance.'
article_number: '033152'
article_type: original
author:
- first_name: Laura Maria
full_name: Serino, Laura Maria
id: '88242'
last_name: Serino
- first_name: Giovanni
full_name: Chesi, Giovanni
last_name: Chesi
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Lorenzo
full_name: Maccone, Lorenzo
last_name: Maccone
- first_name: Chiara
full_name: Macchiavello, Chiara
last_name: Macchiavello
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: 'Serino LM, Chesi G, Brecht B, Maccone L, Macchiavello C, Silberhorn C. Complementarity-based
complementarity: The choice of mutually unbiased observables shapes quantum uncertainty
relations. Physical Review Research. 2025;7(3). doi:10.1103/v24q-sl6n'
apa: 'Serino, L. M., Chesi, G., Brecht, B., Maccone, L., Macchiavello, C., &
Silberhorn, C. (2025). Complementarity-based complementarity: The choice of mutually
unbiased observables shapes quantum uncertainty relations. Physical Review
Research, 7(3), Article 033152. https://doi.org/10.1103/v24q-sl6n'
bibtex: '@article{Serino_Chesi_Brecht_Maccone_Macchiavello_Silberhorn_2025, title={Complementarity-based
complementarity: The choice of mutually unbiased observables shapes quantum uncertainty
relations}, volume={7}, DOI={10.1103/v24q-sl6n},
number={3033152}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Serino, Laura Maria and Chesi, Giovanni and Brecht, Benjamin
and Maccone, Lorenzo and Macchiavello, Chiara and Silberhorn, Christine}, year={2025}
}'
chicago: 'Serino, Laura Maria, Giovanni Chesi, Benjamin Brecht, Lorenzo Maccone,
Chiara Macchiavello, and Christine Silberhorn. “Complementarity-Based Complementarity:
The Choice of Mutually Unbiased Observables Shapes Quantum Uncertainty Relations.”
Physical Review Research 7, no. 3 (2025). https://doi.org/10.1103/v24q-sl6n.'
ieee: 'L. M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, and C. Silberhorn,
“Complementarity-based complementarity: The choice of mutually unbiased observables
shapes quantum uncertainty relations,” Physical Review Research, vol. 7,
no. 3, Art. no. 033152, 2025, doi: 10.1103/v24q-sl6n.'
mla: 'Serino, Laura Maria, et al. “Complementarity-Based Complementarity: The Choice
of Mutually Unbiased Observables Shapes Quantum Uncertainty Relations.” Physical
Review Research, vol. 7, no. 3, 033152, American Physical Society (APS), 2025,
doi:10.1103/v24q-sl6n.'
short: L.M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, C. Silberhorn,
Physical Review Research 7 (2025).
date_created: 2025-12-18T16:04:45Z
date_updated: 2025-12-18T16:05:45Z
department:
- _id: '15'
- _id: '623'
doi: 10.1103/v24q-sl6n
intvolume: ' 7'
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: 'Complementarity-based complementarity: The choice of mutually unbiased observables
shapes quantum uncertainty relations'
type: journal_article
user_id: '27150'
volume: 7
year: '2025'
...
---
_id: '63214'
abstract:
- lang: eng
text: We study a possibility of measuring the time-resolved second-order
autocorrelation function of one of two beams generated in type-II parametric down-conversion
by means of temporal magnification of this beam, bringing its correlation time
from the picosecond to the nanosecond scale, which can be resolved by modern photodetectors.
We show that such a measurement enables one to infer directly the degree of global
coherence of that beam, which is linked by a simple relation to the number of
modes characterizing the entanglement between the two generated beams. We illustrate
the proposed method by an example of photon pairs generated in a periodically
poled potassium titanyl phosphate (KTP) crystal with a symmetric group velocity
matching for various durations of the pump pulse, resulting in different numbers
of modes. Our theoretical model also shows that the magnified double-heralded
autocorrelation function of one beam exhibits a local maximum around zero delay
time, corresponding to photon bunching at a short time scale.
article_number: '023703'
author:
- first_name: Dmitri B.
full_name: Horoshko, Dmitri B.
last_name: Horoshko
- first_name: Shivang
full_name: Srivastava, Shivang
last_name: Srivastava
- first_name: Filip
full_name: Sośnicki, Filip
last_name: Sośnicki
- first_name: Michał
full_name: Mikołajczyk, Michał
last_name: Mikołajczyk
- first_name: Michał
full_name: Karpiński, Michał
last_name: Karpiński
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Mikhail I.
full_name: Kolobov, Mikhail I.
last_name: Kolobov
citation:
ama: Horoshko DB, Srivastava S, Sośnicki F, et al. Time-resolved second-order autocorrelation
function of parametric down-conversion. Physical Review A. 2025;112(2).
doi:10.1103/7ckm-tm3r
apa: Horoshko, D. B., Srivastava, S., Sośnicki, F., Mikołajczyk, M., Karpiński,
M., Brecht, B., & Kolobov, M. I. (2025). Time-resolved second-order autocorrelation
function of parametric down-conversion. Physical Review A, 112(2),
Article 023703. https://doi.org/10.1103/7ckm-tm3r
bibtex: '@article{Horoshko_Srivastava_Sośnicki_Mikołajczyk_Karpiński_Brecht_Kolobov_2025,
title={Time-resolved second-order autocorrelation function of parametric down-conversion},
volume={112}, DOI={10.1103/7ckm-tm3r},
number={2023703}, journal={Physical Review A}, publisher={American Physical Society
(APS)}, author={Horoshko, Dmitri B. and Srivastava, Shivang and Sośnicki, Filip
and Mikołajczyk, Michał and Karpiński, Michał and Brecht, Benjamin and Kolobov,
Mikhail I.}, year={2025} }'
chicago: Horoshko, Dmitri B., Shivang Srivastava, Filip Sośnicki, Michał Mikołajczyk,
Michał Karpiński, Benjamin Brecht, and Mikhail I. Kolobov. “Time-Resolved Second-Order
Autocorrelation Function of Parametric down-Conversion.” Physical Review A
112, no. 2 (2025). https://doi.org/10.1103/7ckm-tm3r.
ieee: 'D. B. Horoshko et al., “Time-resolved second-order autocorrelation
function of parametric down-conversion,” Physical Review A, vol. 112, no.
2, Art. no. 023703, 2025, doi: 10.1103/7ckm-tm3r.'
mla: Horoshko, Dmitri B., et al. “Time-Resolved Second-Order Autocorrelation Function
of Parametric down-Conversion.” Physical Review A, vol. 112, no. 2, 023703,
American Physical Society (APS), 2025, doi:10.1103/7ckm-tm3r.
short: D.B. Horoshko, S. Srivastava, F. Sośnicki, M. Mikołajczyk, M. Karpiński,
B. Brecht, M.I. Kolobov, Physical Review A 112 (2025).
date_created: 2025-12-18T16:06:13Z
date_updated: 2025-12-18T16:06:34Z
department:
- _id: '15'
- _id: '623'
doi: 10.1103/7ckm-tm3r
intvolume: ' 112'
issue: '2'
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: Time-resolved second-order autocorrelation function of parametric down-conversion
type: journal_article
user_id: '27150'
volume: 112
year: '2025'
...
---
_id: '63215'
abstract:
- lang: eng
text: "Abstract\r\n High-dimensional
time-frequency encodings have the potential to significantly advance quantum information
science; however, practical applications require precise knowledge of the encoded
quantum states, which becomes increasingly challenging for larger Hilbert spaces.
Self-guided tomography (SGT) has emerged as a practical and scalable technique
for this purpose in the spatial domain. Here, we apply SGT to estimate time-frequency
states using a multi-output quantum pulse gate. We achieve fidelities of more
than 99% for 3- and 5-dimensional states without the need for calibration or post-processing.
We demonstrate the robustness of SGT against statistical and environmental noise,
highlighting its efficacy in the photon-starved regime typical of quantum information
applications."
article_number: '025024'
author:
- first_name: Laura Maria
full_name: Serino, Laura Maria
id: '88242'
last_name: Serino
- first_name: Markus
full_name: Rambach, Markus
last_name: Rambach
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Jacquiline
full_name: Romero, Jacquiline
last_name: Romero
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Serino LM, Rambach M, Brecht B, Romero J, Silberhorn C. Self-guided tomography
of time-frequency qudits. Quantum Science and Technology. 2025;10(2). doi:10.1088/2058-9565/adb0ea
apa: Serino, L. M., Rambach, M., Brecht, B., Romero, J., & Silberhorn, C. (2025).
Self-guided tomography of time-frequency qudits. Quantum Science and Technology,
10(2), Article 025024. https://doi.org/10.1088/2058-9565/adb0ea
bibtex: '@article{Serino_Rambach_Brecht_Romero_Silberhorn_2025, title={Self-guided
tomography of time-frequency qudits}, volume={10}, DOI={10.1088/2058-9565/adb0ea},
number={2025024}, journal={Quantum Science and Technology}, publisher={IOP Publishing},
author={Serino, Laura Maria and Rambach, Markus and Brecht, Benjamin and Romero,
Jacquiline and Silberhorn, Christine}, year={2025} }'
chicago: Serino, Laura Maria, Markus Rambach, Benjamin Brecht, Jacquiline Romero,
and Christine Silberhorn. “Self-Guided Tomography of Time-Frequency Qudits.” Quantum
Science and Technology 10, no. 2 (2025). https://doi.org/10.1088/2058-9565/adb0ea.
ieee: 'L. M. Serino, M. Rambach, B. Brecht, J. Romero, and C. Silberhorn, “Self-guided
tomography of time-frequency qudits,” Quantum Science and Technology, vol.
10, no. 2, Art. no. 025024, 2025, doi: 10.1088/2058-9565/adb0ea.'
mla: Serino, Laura Maria, et al. “Self-Guided Tomography of Time-Frequency Qudits.”
Quantum Science and Technology, vol. 10, no. 2, 025024, IOP Publishing,
2025, doi:10.1088/2058-9565/adb0ea.
short: L.M. Serino, M. Rambach, B. Brecht, J. Romero, C. Silberhorn, Quantum Science
and Technology 10 (2025).
date_created: 2025-12-18T16:07:11Z
date_updated: 2025-12-18T16:07:35Z
department:
- _id: '15'
- _id: '623'
doi: 10.1088/2058-9565/adb0ea
intvolume: ' 10'
issue: '2'
language:
- iso: eng
publication: Quantum Science and Technology
publication_identifier:
issn:
- 2058-9565
publication_status: published
publisher: IOP Publishing
status: public
title: Self-guided tomography of time-frequency qudits
type: journal_article
user_id: '27150'
volume: 10
year: '2025'
...
---
_id: '59895'
abstract:
- lang: eng
text: The generation of optically broadband Nyquist pulse sequences using an integrated
Mach-Zehnder modulator (MZM) in a thin-film lithium-niobate (TFLN) platform with
repetition rates of 5 to 32 GHz and optical bandwidths of up to 160 GHz is demonstrated.
Nyquist pulse sequences with high optical bandwidth can be used as synchronization
and control signals in quantum sources based on photon pair generation.
author:
- first_name: Christian
full_name: Kress, Christian
id: '13256'
last_name: Kress
orcid: 0000-0002-4403-2237
- first_name: Martin Miroslavov
full_name: Mihaylov, Martin Miroslavov
id: '42449'
last_name: Mihaylov
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: 'Kress C, Mihaylov MM, Schwabe T, Silberhorn C, Scheytt JC. Broadband Nyquist
Pulse Generation on TFLN Platform for Integrated Quantum Source. In: PIERS
Proceedings . PhotonIcs and Electromagnetics Research Symposium (PIERS). doi:https://doi.org/10.1109/PIERS-Spring66516.2025.11276835'
apa: Kress, C., Mihaylov, M. M., Schwabe, T., Silberhorn, C., & Scheytt, J.
C. (n.d.). Broadband Nyquist Pulse Generation on TFLN Platform for Integrated
Quantum Source. PIERS Proceedings . PhotonIcs and Electromagnetics Research
Symposium (PIERS), Abu Dhabi. https://doi.org/10.1109/PIERS-Spring66516.2025.11276835
bibtex: '@inproceedings{Kress_Mihaylov_Schwabe_Silberhorn_Scheytt, title={Broadband
Nyquist Pulse Generation on TFLN Platform for Integrated Quantum Source}, DOI={https://doi.org/10.1109/PIERS-Spring66516.2025.11276835},
booktitle={PIERS Proceedings }, publisher={PhotonIcs and Electromagnetics Research
Symposium (PIERS)}, author={Kress, Christian and Mihaylov, Martin Miroslavov and
Schwabe, Tobias and Silberhorn, Christine and Scheytt, J. Christoph} }'
chicago: Kress, Christian, Martin Miroslavov Mihaylov, Tobias Schwabe, Christine
Silberhorn, and J. Christoph Scheytt. “Broadband Nyquist Pulse Generation on TFLN
Platform for Integrated Quantum Source.” In PIERS Proceedings . PhotonIcs
and Electromagnetics Research Symposium (PIERS), n.d. https://doi.org/10.1109/PIERS-Spring66516.2025.11276835.
ieee: 'C. Kress, M. M. Mihaylov, T. Schwabe, C. Silberhorn, and J. C. Scheytt, “Broadband
Nyquist Pulse Generation on TFLN Platform for Integrated Quantum Source,” presented
at the PhotonIcs and Electromagnetics Research Symposium (PIERS), Abu Dhabi, doi:
https://doi.org/10.1109/PIERS-Spring66516.2025.11276835.'
mla: Kress, Christian, et al. “Broadband Nyquist Pulse Generation on TFLN Platform
for Integrated Quantum Source.” PIERS Proceedings , PhotonIcs and Electromagnetics
Research Symposium (PIERS), doi:https://doi.org/10.1109/PIERS-Spring66516.2025.11276835.
short: 'C. Kress, M.M. Mihaylov, T. Schwabe, C. Silberhorn, J.C. Scheytt, in: PIERS
Proceedings , PhotonIcs and Electromagnetics Research Symposium (PIERS), n.d.'
conference:
end_date: 2025-05-09
location: Abu Dhabi
name: PhotonIcs and Electromagnetics Research Symposium (PIERS)
start_date: 2025-05-03
date_created: 2025-05-14T09:59:50Z
date_updated: 2026-01-02T14:29:41Z
department:
- _id: '58'
- _id: '623'
doi: https://doi.org/10.1109/PIERS-Spring66516.2025.11276835
language:
- iso: eng
project:
- _id: '302'
name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
DAC'
- _id: '175'
name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
Modulatoren auf Basis von CMOS und LNOI (C11*)'
publication: 'PIERS Proceedings '
publication_status: accepted
publisher: PhotonIcs and Electromagnetics Research Symposium (PIERS)
status: public
title: Broadband Nyquist Pulse Generation on TFLN Platform for Integrated Quantum
Source
type: conference
user_id: '13256'
year: '2025'
...
---
_id: '63091'
abstract:
- lang: eng
text: We present the design and characterization of a guided-wave, bright, and highly
frequency non-degenerate parametric down-conversion (PDC) source in thin-film
lithium niobate. The source generates photon pairs with wavelengths of 815 nm
and 1550 nm, linking the visible wavelength regime with telecommunication wavelengths.
We confirm the high quality of the generated single photons by determining a value
for the heralded second-order correlation function as low as g_h^(2)=(6.7+/-1.1)*10^8-3).
Furthermore, we achieve a high spectral brightness of 0.44·10pairs/(smWGHz) which
is two orders of magnitude higher than sources based on weakly guiding waveguides.
The shape of the PDC spectrum and the strong agreement between the effective and
nominal bandwidth highlight our high fabrication quality of periodically poled
waveguides. The good agreement between the measured and simulated spectral characteristics
of our source demonstrates our excellent understanding of the PDC process. Our
result is a valuable step towards practical and scalable quantum communication
networks as well as photonic quantum computing.
article_number: '52729'
article_type: original
author:
- first_name: Silia
full_name: Babel, Silia
id: '63231'
last_name: Babel
orcid: https://orcid.org/0000-0002-1568-2580
- first_name: Laura
full_name: Bollmers, Laura
id: '61375'
last_name: Bollmers
- first_name: Franz
full_name: Roeder, Franz
id: '88149'
last_name: Roeder
- first_name: Werner
full_name: Ridder, Werner
id: '63574'
last_name: Ridder
- first_name: Christian
full_name: Golla, Christian
id: '40420'
last_name: Golla
- first_name: Ronja
full_name: Köthemann, Ronja
last_name: Köthemann
- first_name: Bernhard
full_name: Reineke, Bernhard
id: '29821'
last_name: Reineke
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Babel S, Bollmers L, Roeder F, et al. Ultrabright, two-color photon pair source
based on thin-film lithium niobate for bridging visible and telecom wavelengths.
Optics Express. 2025;33(25). doi:10.1364/oe.571605
apa: Babel, S., Bollmers, L., Roeder, F., Ridder, W., Golla, C., Köthemann, R.,
Reineke, B., Herrmann, H., Brecht, B., Eigner, C., Padberg, L., & Silberhorn,
C. (2025). Ultrabright, two-color photon pair source based on thin-film lithium
niobate for bridging visible and telecom wavelengths. Optics Express, 33(25),
Article 52729. https://doi.org/10.1364/oe.571605
bibtex: '@article{Babel_Bollmers_Roeder_Ridder_Golla_Köthemann_Reineke_Herrmann_Brecht_Eigner_et
al._2025, title={Ultrabright, two-color photon pair source based on thin-film
lithium niobate for bridging visible and telecom wavelengths}, volume={33}, DOI={10.1364/oe.571605}, number={2552729},
journal={Optics Express}, publisher={Optica Publishing Group}, author={Babel,
Silia and Bollmers, Laura and Roeder, Franz and Ridder, Werner and Golla, Christian
and Köthemann, Ronja and Reineke, Bernhard and Herrmann, Harald and Brecht, Benjamin
and Eigner, Christof and et al.}, year={2025} }'
chicago: Babel, Silia, Laura Bollmers, Franz Roeder, Werner Ridder, Christian Golla,
Ronja Köthemann, Bernhard Reineke, et al. “Ultrabright, Two-Color Photon Pair
Source Based on Thin-Film Lithium Niobate for Bridging Visible and Telecom Wavelengths.”
Optics Express 33, no. 25 (2025). https://doi.org/10.1364/oe.571605.
ieee: 'S. Babel et al., “Ultrabright, two-color photon pair source based
on thin-film lithium niobate for bridging visible and telecom wavelengths,” Optics
Express, vol. 33, no. 25, Art. no. 52729, 2025, doi: 10.1364/oe.571605.'
mla: Babel, Silia, et al. “Ultrabright, Two-Color Photon Pair Source Based on Thin-Film
Lithium Niobate for Bridging Visible and Telecom Wavelengths.” Optics Express,
vol. 33, no. 25, 52729, Optica Publishing Group, 2025, doi:10.1364/oe.571605.
short: S. Babel, L. Bollmers, F. Roeder, W. Ridder, C. Golla, R. Köthemann, B. Reineke,
H. Herrmann, B. Brecht, C. Eigner, L. Padberg, C. Silberhorn, Optics Express 33
(2025).
date_created: 2025-12-15T07:20:36Z
date_updated: 2026-01-07T11:28:35Z
department:
- _id: '288'
- _id: '623'
doi: 10.1364/oe.571605
intvolume: ' 33'
issue: '25'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://opg.optica.org/oe/fulltext.cfm?uri=oe-33-25-52729
oa: '1'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Ultrabright, two-color photon pair source based on thin-film lithium niobate
for bridging visible and telecom wavelengths
type: journal_article
user_id: '63231'
volume: 33
year: '2025'
...
---
_id: '62713'
abstract:
- lang: eng
text: Periodically poled thin-film lithium niobate (TFLN) crystals are the fundamental
building block for highly-efficient quantum light sources and frequency converters.
The efficiency of these devices is strongly dependent on the interaction length
between the light and the nonlinear material, scaling quadratically with this
parameter. Nevertheless, the fabrication of long, continuously poled areas in
TFLN remains challenging, the length of continuously poled areas rarely exceeds
10 mm. In this work, we demonstrate a significant progress in this field achieving
the periodic poling of continuous poled areas of 70 mm length with a 3 μm poling
period and a close to 50 % duty cycle. We compare two poling electrode design
approaches to fabricate long, continuous poled areas. The first approach involves
the poling of a single, continuous 70 mm long electrode. The second utilize a
segmented approach including the poling of more than 20 individual sections forming
together a 70 mm long poling area with no stitching errors. While the continuous
electrode allows for faster fabrication, the segmented approach allows to individually
optimize the poling resulting in less duty cycle variation. A detailed analysis
of the periodic poling results reveals that the results of both are consistent
with previously reported poling outcomes for shorter devices. Thus, we demonstrate
wafer-scale periodic poling exceeding chiplet-size without any loss in the periodic
poling quality. Our work presents a key step towards highly-efficient, narrow-bandwidth
and low-pump power nonlinear optical devices.
article_type: original
author:
- first_name: Laura
full_name: Bollmers, Laura
id: '61375'
last_name: Bollmers
- first_name: Noah
full_name: Spiegelberg, Noah
last_name: Spiegelberg
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Bollmers L, Spiegelberg N, Rüsing M, Eigner C, Padberg L, Silberhorn C. Segmented
finger electrodes to optimize ultra-long continuous wafer-scale periodic poling
in thin-film lithium niobate. Nanophotonics. 2025;14:4761. doi:10.1515/nanoph-2025-0461
apa: Bollmers, L., Spiegelberg, N., Rüsing, M., Eigner, C., Padberg, L., & Silberhorn,
C. (2025). Segmented finger electrodes to optimize ultra-long continuous wafer-scale
periodic poling in thin-film lithium niobate. Nanophotonics, 14,
4761. https://doi.org/10.1515/nanoph-2025-0461
bibtex: '@article{Bollmers_Spiegelberg_Rüsing_Eigner_Padberg_Silberhorn_2025, title={Segmented
finger electrodes to optimize ultra-long continuous wafer-scale periodic poling
in thin-film lithium niobate}, volume={14}, DOI={10.1515/nanoph-2025-0461},
journal={Nanophotonics}, publisher={Walter de Gruyter GmbH}, author={Bollmers,
Laura and Spiegelberg, Noah and Rüsing, Michael and Eigner, Christof and Padberg,
Laura and Silberhorn, Christine}, year={2025}, pages={4761} }'
chicago: 'Bollmers, Laura, Noah Spiegelberg, Michael Rüsing, Christof Eigner, Laura
Padberg, and Christine Silberhorn. “Segmented Finger Electrodes to Optimize Ultra-Long
Continuous Wafer-Scale Periodic Poling in Thin-Film Lithium Niobate.” Nanophotonics
14 (2025): 4761. https://doi.org/10.1515/nanoph-2025-0461.'
ieee: 'L. Bollmers, N. Spiegelberg, M. Rüsing, C. Eigner, L. Padberg, and C. Silberhorn,
“Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic
poling in thin-film lithium niobate,” Nanophotonics, vol. 14, p. 4761,
2025, doi: 10.1515/nanoph-2025-0461.'
mla: Bollmers, Laura, et al. “Segmented Finger Electrodes to Optimize Ultra-Long
Continuous Wafer-Scale Periodic Poling in Thin-Film Lithium Niobate.” Nanophotonics,
vol. 14, Walter de Gruyter GmbH, 2025, p. 4761, doi:10.1515/nanoph-2025-0461.
short: L. Bollmers, N. Spiegelberg, M. Rüsing, C. Eigner, L. Padberg, C. Silberhorn,
Nanophotonics 14 (2025) 4761.
date_created: 2025-12-01T08:45:07Z
date_updated: 2026-01-07T12:06:29Z
department:
- _id: '15'
- _id: '288'
- _id: '623'
doi: 10.1515/nanoph-2025-0461
intvolume: ' 14'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1515/nanoph-2025-0461
oa: '1'
page: '4761'
publication: Nanophotonics
publication_identifier:
issn:
- 2192-8606
- 2192-8614
publication_status: published
publisher: Walter de Gruyter GmbH
quality_controlled: '1'
status: public
title: Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic
poling in thin-film lithium niobate
type: journal_article
user_id: '22501'
volume: 14
year: '2025'
...
---
_id: '61922'
abstract:
- lang: eng
text: "We present an extremely simple polynomial-space exponential-time\r\n$(1-\\varepsilon)$-approximation
algorithm for MAX-k-SAT that is (slightly)\r\nfaster than the previous known polynomial-space
$(1-\\varepsilon)$-approximation\r\nalgorithms by Hirsch (Discrete Applied Mathematics,
2003) and Escoffier,\r\nPaschos and Tourniaire (Theoretical Computer Science,
2014). Our algorithm\r\nrepeatedly samples an assignment uniformly at random until
finding an\r\nassignment that satisfies a large enough fraction of clauses. Surprisingly,
we\r\ncan show the efficiency of this simpler approach by proving that in any\r\ninstance
of MAX-k-SAT (or more generally any instance of MAXCSP), an\r\nexponential number
of assignments satisfy a fraction of clauses close to the\r\noptimal value."
author:
- first_name: Harry
full_name: Buhrman, Harry
last_name: Buhrman
- first_name: Sevag
full_name: Gharibian, Sevag
id: '71541'
last_name: Gharibian
orcid: 0000-0002-9992-3379
- first_name: Zeph
full_name: Landau, Zeph
last_name: Landau
- first_name: François Le
full_name: Gall, François Le
last_name: Gall
- first_name: Norbert
full_name: Schuch, Norbert
last_name: Schuch
- first_name: Suguru
full_name: Tamaki, Suguru
last_name: Tamaki
citation:
ama: Buhrman H, Gharibian S, Landau Z, Gall FL, Schuch N, Tamaki S. A Simpler Exponential-Time
Approximation Algorithm for MAX-k-SAT. SIAM Symposium on Simplicity in Algorithms
(SOSA).
apa: Buhrman, H., Gharibian, S., Landau, Z., Gall, F. L., Schuch, N., & Tamaki,
S. (n.d.). A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT. In
SIAM Symposium on Simplicity in Algorithms (SOSA).
bibtex: '@article{Buhrman_Gharibian_Landau_Gall_Schuch_Tamaki, title={A Simpler
Exponential-Time Approximation Algorithm for MAX-k-SAT}, journal={SIAM Symposium
on Simplicity in Algorithms (SOSA)}, author={Buhrman, Harry and Gharibian, Sevag
and Landau, Zeph and Gall, François Le and Schuch, Norbert and Tamaki, Suguru}
}'
chicago: Buhrman, Harry, Sevag Gharibian, Zeph Landau, François Le Gall, Norbert
Schuch, and Suguru Tamaki. “A Simpler Exponential-Time Approximation Algorithm
for MAX-k-SAT.” SIAM Symposium on Simplicity in Algorithms (SOSA), n.d.
ieee: H. Buhrman, S. Gharibian, Z. Landau, F. L. Gall, N. Schuch, and S. Tamaki,
“A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT,” SIAM Symposium
on Simplicity in Algorithms (SOSA). .
mla: Buhrman, Harry, et al. “A Simpler Exponential-Time Approximation Algorithm
for MAX-k-SAT.” SIAM Symposium on Simplicity in Algorithms (SOSA).
short: H. Buhrman, S. Gharibian, Z. Landau, F.L. Gall, N. Schuch, S. Tamaki, SIAM
Symposium on Simplicity in Algorithms (SOSA) (n.d.).
date_created: 2025-10-22T09:33:22Z
date_updated: 2026-01-07T14:26:56Z
department:
- _id: '7'
- _id: '623'
external_id:
arxiv:
- '2510.18164'
language:
- iso: eng
publication: SIAM Symposium on Simplicity in Algorithms (SOSA)
publication_status: inpress
status: public
title: A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT
type: preprint
user_id: '71541'
year: '2025'
...
---
_id: '63051'
author:
- first_name: Nicholas Alexander
full_name: Güsken, Nicholas Alexander
id: '112030'
last_name: Güsken
orcid: 0000-0002-4816-0666
citation:
ama: Güsken NA. Optical modulator and electronic apparatus including the same. Published
online 2025.
apa: Güsken, N. A. (2025). Optical modulator and electronic apparatus including
the same.
bibtex: '@article{Güsken_2025, title={Optical modulator and electronic apparatus
including the same}, author={Güsken, Nicholas Alexander}, year={2025} }'
chicago: Güsken, Nicholas Alexander. “Optical Modulator and Electronic Apparatus
Including the Same,” 2025.
ieee: N. A. Güsken, “Optical modulator and electronic apparatus including the same.”
2025.
mla: Güsken, Nicholas Alexander. Optical Modulator and Electronic Apparatus Including
the Same. 2025.
short: N.A. Güsken, (2025).
date_created: 2025-12-11T20:45:34Z
date_updated: 2026-01-08T13:23:44Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
ipc: US20250116889A1
ipn: US20250116889A1
publication_date: 2025/04/^0
status: public
title: Optical modulator and electronic apparatus including the same
type: patent
user_id: '112030'
year: '2025'
...
---
_id: '63534'
abstract:
- lang: eng
text: Boson sampling is a key candidate for demonstrating quantum advantage
and has already yielded significant advances in quantum simulation, machine learning,
and graph theory. In this work, a unification and extension of distinct forms
of boson sampling is developed. The devised protocol merges discrete-variable
scattershot boson sampling with continuous-variable Gaussian boson sampling. Therefore,
it is rendered possible to harness the complexity of more interesting states,
such as squeezed photons, in advanced sampling protocols. A generating function
formalism is developed for the joint description of multiphoton and multimode
light undergoing Gaussian transformations. The resulting analytical tools enable
one to explore interfaces of different photonic quantum-information-processing
platforms. A numerical simulation of unified sampling is carried out, benchmarking
its performance, complexity, and scalability. Entanglement is characterized to
exemplify the generation of quantum correlations from the nonlinear interactions
of a unified sampler.
article_number: L042068
author:
- first_name: Luca
full_name: Bianchi, Luca
last_name: Bianchi
- first_name: Carlo
full_name: Marconi, Carlo
last_name: Marconi
- first_name: Laura
full_name: Ares, Laura
last_name: Ares
- first_name: Davide
full_name: Bacco, Davide
last_name: Bacco
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
citation:
ama: Bianchi L, Marconi C, Ares L, Bacco D, Sperling J. Unified boson sampling.
Physical Review Research. 2025;7(4). doi:10.1103/8hy1-m5gg
apa: Bianchi, L., Marconi, C., Ares, L., Bacco, D., & Sperling, J. (2025). Unified
boson sampling. Physical Review Research, 7(4), Article L042068.
https://doi.org/10.1103/8hy1-m5gg
bibtex: '@article{Bianchi_Marconi_Ares_Bacco_Sperling_2025, title={Unified boson
sampling}, volume={7}, DOI={10.1103/8hy1-m5gg},
number={4L042068}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Bianchi, Luca and Marconi, Carlo and Ares, Laura and Bacco,
Davide and Sperling, Jan}, year={2025} }'
chicago: Bianchi, Luca, Carlo Marconi, Laura Ares, Davide Bacco, and Jan Sperling.
“Unified Boson Sampling.” Physical Review Research 7, no. 4 (2025). https://doi.org/10.1103/8hy1-m5gg.
ieee: 'L. Bianchi, C. Marconi, L. Ares, D. Bacco, and J. Sperling, “Unified boson
sampling,” Physical Review Research, vol. 7, no. 4, Art. no. L042068, 2025,
doi: 10.1103/8hy1-m5gg.'
mla: Bianchi, Luca, et al. “Unified Boson Sampling.” Physical Review Research,
vol. 7, no. 4, L042068, American Physical Society (APS), 2025, doi:10.1103/8hy1-m5gg.
short: L. Bianchi, C. Marconi, L. Ares, D. Bacco, J. Sperling, Physical Review Research
7 (2025).
date_created: 2026-01-09T08:02:57Z
date_updated: 2026-01-09T08:03:38Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '429'
doi: 10.1103/8hy1-m5gg
intvolume: ' 7'
issue: '4'
language:
- iso: eng
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Unified boson sampling
type: journal_article
user_id: '75127'
volume: 7
year: '2025'
...
---
_id: '63562'
abstract:
- lang: eng
text: 'Entangled two-mode Gaussian states constitute an important building
block for continuous variable quantum computing and communication protocols. In
this work, we theoretically study two-mode bipartite states, which are extracted
from multimode light generated via type-II parametric downconversion (PDC) in
lossy waveguides. For these states, we demonstrate that the squeezing quantifies
entanglement and we construct a measurement basis, which results in the maximal
bipartite entanglement. We illustrate our findings by numerically solving the
spatial master equation for PDC in a Markovian environment. The optimal measurement
modes are compared with two widely used broadband bases: the Mercer–Wolf basis
(the first-order coherence basis) and the Williamson–Euler basis.'
article_number: '046116'
author:
- first_name: Denis
full_name: Kopylov, Denis
id: '98502'
last_name: Kopylov
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Polina R.
full_name: Sharapova, Polina R.
id: '60286'
last_name: Sharapova
citation:
ama: Kopylov D, Meier T, Sharapova PR. Bipartite entanglement extracted from multimode
squeezed light generated in lossy waveguides. APL Quantum. 2025;2(4). doi:10.1063/5.0293116
apa: Kopylov, D., Meier, T., & Sharapova, P. R. (2025). Bipartite entanglement
extracted from multimode squeezed light generated in lossy waveguides. APL
Quantum, 2(4), Article 046116. https://doi.org/10.1063/5.0293116
bibtex: '@article{Kopylov_Meier_Sharapova_2025, title={Bipartite entanglement extracted
from multimode squeezed light generated in lossy waveguides}, volume={2}, DOI={10.1063/5.0293116}, number={4046116},
journal={APL Quantum}, publisher={AIP Publishing}, author={Kopylov, Denis and
Meier, Torsten and Sharapova, Polina R.}, year={2025} }'
chicago: Kopylov, Denis, Torsten Meier, and Polina R. Sharapova. “Bipartite Entanglement
Extracted from Multimode Squeezed Light Generated in Lossy Waveguides.” APL
Quantum 2, no. 4 (2025). https://doi.org/10.1063/5.0293116.
ieee: 'D. Kopylov, T. Meier, and P. R. Sharapova, “Bipartite entanglement extracted
from multimode squeezed light generated in lossy waveguides,” APL Quantum,
vol. 2, no. 4, Art. no. 046116, 2025, doi: 10.1063/5.0293116.'
mla: Kopylov, Denis, et al. “Bipartite Entanglement Extracted from Multimode Squeezed
Light Generated in Lossy Waveguides.” APL Quantum, vol. 2, no. 4, 046116,
AIP Publishing, 2025, doi:10.1063/5.0293116.
short: D. Kopylov, T. Meier, P.R. Sharapova, APL Quantum 2 (2025).
date_created: 2026-01-12T13:18:51Z
date_updated: 2026-01-12T13:23:36Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '429'
- _id: '230'
- _id: '623'
- _id: '35'
doi: 10.1063/5.0293116
intvolume: ' 2'
issue: '4'
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: '174'
name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
Systemen: Eine theoretische Analyse'
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: APL Quantum
publication_identifier:
issn:
- 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Bipartite entanglement extracted from multimode squeezed light generated in
lossy waveguides
type: journal_article
user_id: '16199'
volume: 2
year: '2025'
...