---
_id: '65316'
abstract:
- lang: eng
text: Metasurfaces are powerful tools for manipulating light using small structures
on the nanoscale. In most metasurfaces, near-field couplings are treated as being
unfavorable perturbations. Here, we experimentally investigate a structure consisting
of sinusoidally modulated silicon waveguides where near-field coupling of local
resonances leads to negative coupling, i.e., a negative coupling constant. This
gives rise to wave-vector-dependent eigenstates of elliptical, linear, and circular
polarizations. In particular, fully circular polarization states are not only
present at a single point in momentum space (k-space) but also along a line. This
circular polarization line, as well as a linear polarization line, emanates from
a polarization degeneracy at the Dirac point. We experimentally validate the existence
of these eigenstates and demonstrate the energy-, polarization-, and wave vector
dependence of this metasurface as well as its sensitivity to fabrication tolerances.
By tuning the incident k-vector, certain polarization-energy eigenstates are strongly
reflected, allowing for uses in angle-tunable polarization filters and light sources.
article_number: acsphotonics.5c02865
author:
- first_name: Helene
full_name: Wetter, Helene
last_name: Wetter
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: Falk
full_name: Rehberg, Falk
last_name: Rehberg
- first_name: Wenlong
full_name: Gao, Wenlong
last_name: Gao
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Wetter H, Wingenbach J, Rehberg F, Gao W, Schumacher S, Zentgraf T. Polarization-
and Wave-Vector Selective Optical Metasurface with Near-Field Coupling. ACS
Photonics. Published online 2026. doi:10.1021/acsphotonics.5c02865
apa: Wetter, H., Wingenbach, J., Rehberg, F., Gao, W., Schumacher, S., & Zentgraf,
T. (2026). Polarization- and Wave-Vector Selective Optical Metasurface with Near-Field
Coupling. ACS Photonics, Article acsphotonics.5c02865. https://doi.org/10.1021/acsphotonics.5c02865
bibtex: '@article{Wetter_Wingenbach_Rehberg_Gao_Schumacher_Zentgraf_2026, title={Polarization-
and Wave-Vector Selective Optical Metasurface with Near-Field Coupling}, DOI={10.1021/acsphotonics.5c02865},
number={acsphotonics.5c02865}, journal={ACS Photonics}, publisher={American Chemical
Society (ACS)}, author={Wetter, Helene and Wingenbach, Jan and Rehberg, Falk and
Gao, Wenlong and Schumacher, Stefan and Zentgraf, Thomas}, year={2026} }'
chicago: Wetter, Helene, Jan Wingenbach, Falk Rehberg, Wenlong Gao, Stefan Schumacher,
and Thomas Zentgraf. “Polarization- and Wave-Vector Selective Optical Metasurface
with Near-Field Coupling.” ACS Photonics, 2026. https://doi.org/10.1021/acsphotonics.5c02865.
ieee: 'H. Wetter, J. Wingenbach, F. Rehberg, W. Gao, S. Schumacher, and T. Zentgraf,
“Polarization- and Wave-Vector Selective Optical Metasurface with Near-Field Coupling,”
ACS Photonics, Art. no. acsphotonics.5c02865, 2026, doi: 10.1021/acsphotonics.5c02865.'
mla: Wetter, Helene, et al. “Polarization- and Wave-Vector Selective Optical Metasurface
with Near-Field Coupling.” ACS Photonics, acsphotonics.5c02865, American
Chemical Society (ACS), 2026, doi:10.1021/acsphotonics.5c02865.
short: H. Wetter, J. Wingenbach, F. Rehberg, W. Gao, S. Schumacher, T. Zentgraf,
ACS Photonics (2026).
date_created: 2026-04-02T07:25:30Z
date_updated: 2026-04-02T07:31:24Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acsphotonics.5c02865
external_id:
arxiv:
- '2512.14452'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2512.14452
oa: '1'
publication: ACS Photonics
publication_identifier:
issn:
- 2330-4022
- 2330-4022
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Polarization- and Wave-Vector Selective Optical Metasurface with Near-Field
Coupling
type: journal_article
user_id: '30525'
year: '2026'
...
---
_id: '60298'
abstract:
- lang: eng
text: In this work, we introduce PHOENIX, a highly optimized explicit open-source
solver for two-dimensional nonlinear Schrödinger equations with extensions. The
nonlinear Schrödinger equation and its extensions (Gross-Pitaevskii equation)
are widely studied to model and analyze complex phenomena in fields such as optics,
condensed matter physics, fluid dynamics, and plasma physics. It serves as a powerful
tool for understanding nonlinear wave dynamics, soliton formation, and the interplay
between nonlinearity, dispersion, and diffraction. By extending the nonlinear
Schrödinger equation, various physical effects such as non-Hermiticity, spin-orbit
interaction, and quantum optical aspects can be incorporated. PHOENIX is designed
to accommodate a wide range of applications by a straightforward extendability
without the need for user knowledge of computing architectures or performance
optimization. The high performance and power efficiency of PHOENIX are demonstrated
on a wide range of entry-class to high-end consumer and high-performance computing
GPUs and CPUs. Compared to a more conventional MATLAB implementation, a speedup
of up to three orders of magnitude and energy savings of up to 99.8% are achieved.
The performance is compared to a performance model showing that PHOENIX performs
close to the relevant performance bounds in many situations. The possibilities
of PHOENIX are demonstrated with a range of practical examples from the realm
of nonlinear (quantum) photonics in planar microresonators with active media including
exciton-polariton condensates. Examples range from solutions on very large grids,
the use of local optimization algorithms, to Monte Carlo ensemble evolutions with
quantum noise enabling the tomography of the system's quantum state.
article_number: '109689'
article_type: original
author:
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: David
full_name: Bauch, David
id: '44172'
last_name: Bauch
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Robert
full_name: Schade, Robert
id: '75963'
last_name: Schade
orcid: 0000-0002-6268-5397
- first_name: Christian
full_name: Plessl, Christian
id: '16153'
last_name: Plessl
orcid: 0000-0001-5728-9982
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Wingenbach J, Bauch D, Ma X, Schade R, Plessl C, Schumacher S. PHOENIX – Paderborn
highly optimized and energy efficient solver for two-dimensional nonlinear Schrödinger
equations with integrated extensions. Computer Physics Communications.
2025;315. doi:10.1016/j.cpc.2025.109689
apa: Wingenbach, J., Bauch, D., Ma, X., Schade, R., Plessl, C., & Schumacher,
S. (2025). PHOENIX – Paderborn highly optimized and energy efficient solver for
two-dimensional nonlinear Schrödinger equations with integrated extensions. Computer
Physics Communications, 315, Article 109689. https://doi.org/10.1016/j.cpc.2025.109689
bibtex: '@article{Wingenbach_Bauch_Ma_Schade_Plessl_Schumacher_2025, title={PHOENIX
– Paderborn highly optimized and energy efficient solver for two-dimensional nonlinear
Schrödinger equations with integrated extensions}, volume={315}, DOI={10.1016/j.cpc.2025.109689},
number={109689}, journal={Computer Physics Communications}, publisher={Elsevier
BV}, author={Wingenbach, Jan and Bauch, David and Ma, Xuekai and Schade, Robert
and Plessl, Christian and Schumacher, Stefan}, year={2025} }'
chicago: Wingenbach, Jan, David Bauch, Xuekai Ma, Robert Schade, Christian Plessl,
and Stefan Schumacher. “PHOENIX – Paderborn Highly Optimized and Energy Efficient
Solver for Two-Dimensional Nonlinear Schrödinger Equations with Integrated Extensions.”
Computer Physics Communications 315 (2025). https://doi.org/10.1016/j.cpc.2025.109689.
ieee: 'J. Wingenbach, D. Bauch, X. Ma, R. Schade, C. Plessl, and S. Schumacher,
“PHOENIX – Paderborn highly optimized and energy efficient solver for two-dimensional
nonlinear Schrödinger equations with integrated extensions,” Computer Physics
Communications, vol. 315, Art. no. 109689, 2025, doi: 10.1016/j.cpc.2025.109689.'
mla: Wingenbach, Jan, et al. “PHOENIX – Paderborn Highly Optimized and Energy Efficient
Solver for Two-Dimensional Nonlinear Schrödinger Equations with Integrated Extensions.”
Computer Physics Communications, vol. 315, 109689, Elsevier BV, 2025, doi:10.1016/j.cpc.2025.109689.
short: J. Wingenbach, D. Bauch, X. Ma, R. Schade, C. Plessl, S. Schumacher, Computer
Physics Communications 315 (2025).
date_created: 2025-06-23T07:38:52Z
date_updated: 2025-06-29T12:00:36Z
department:
- _id: '27'
doi: 10.1016/j.cpc.2025.109689
intvolume: ' 315'
language:
- iso: eng
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Computer Physics Communications
publication_identifier:
issn:
- 0010-4655
publication_status: published
publisher: Elsevier BV
status: public
title: PHOENIX – Paderborn highly optimized and energy efficient solver for two-dimensional
nonlinear Schrödinger equations with integrated extensions
type: journal_article
user_id: '75963'
volume: 315
year: '2025'
...
---
_id: '61245'
article_number: '032404'
author:
- first_name: Franziska
full_name: Barkhausen, Franziska
id: '63631'
last_name: Barkhausen
- first_name: Laura
full_name: Ares Santos, Laura
last_name: Ares Santos
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
citation:
ama: 'Barkhausen F, Ares Santos L, Schumacher S, Sperling J. Entanglement between
dependent degrees of freedom: Quasiparticle correlations. Physical Review A.
2025;111(3). doi:10.1103/physreva.111.032404'
apa: 'Barkhausen, F., Ares Santos, L., Schumacher, S., & Sperling, J. (2025).
Entanglement between dependent degrees of freedom: Quasiparticle correlations.
Physical Review A, 111(3), Article 032404. https://doi.org/10.1103/physreva.111.032404'
bibtex: '@article{Barkhausen_Ares Santos_Schumacher_Sperling_2025, title={Entanglement
between dependent degrees of freedom: Quasiparticle correlations}, volume={111},
DOI={10.1103/physreva.111.032404},
number={3032404}, journal={Physical Review A}, publisher={American Physical Society
(APS)}, author={Barkhausen, Franziska and Ares Santos, Laura and Schumacher, Stefan
and Sperling, Jan}, year={2025} }'
chicago: 'Barkhausen, Franziska, Laura Ares Santos, Stefan Schumacher, and Jan Sperling.
“Entanglement between Dependent Degrees of Freedom: Quasiparticle Correlations.”
Physical Review A 111, no. 3 (2025). https://doi.org/10.1103/physreva.111.032404.'
ieee: 'F. Barkhausen, L. Ares Santos, S. Schumacher, and J. Sperling, “Entanglement
between dependent degrees of freedom: Quasiparticle correlations,” Physical
Review A, vol. 111, no. 3, Art. no. 032404, 2025, doi: 10.1103/physreva.111.032404.'
mla: 'Barkhausen, Franziska, et al. “Entanglement between Dependent Degrees of Freedom:
Quasiparticle Correlations.” Physical Review A, vol. 111, no. 3, 032404,
American Physical Society (APS), 2025, doi:10.1103/physreva.111.032404.'
short: F. Barkhausen, L. Ares Santos, S. Schumacher, J. Sperling, Physical Review
A 111 (2025).
date_created: 2025-09-12T10:37:34Z
date_updated: 2025-09-12T10:42:16Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '706'
- _id: '35'
- _id: '230'
- _id: '623'
- _id: '429'
doi: 10.1103/physreva.111.032404
intvolume: ' 111'
issue: '3'
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: '56'
name: TRR 142 - Project Area C
- _id: '61'
name: 'TRR 142; TP A04: Nichtlineare Quantenprozesstomographie und Photonik mit
Polaritonen in Mikrokavitäten'
- _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 A
publication_identifier:
issn:
- 2469-9926
- 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Entanglement between dependent degrees of freedom: Quasiparticle correlations'
type: journal_article
user_id: '16199'
volume: 111
year: '2025'
...
---
_id: '61246'
abstract:
- lang: eng
text: "Abstract\r\n The time-dependent
one-dimensional nonlinear Schrödinger equation (NLSE) is solved numerically by
a hybrid pseudospectral-variational quantum algorithm that connects a pseudospectral
step for the Hamiltonian term with a variational step for the nonlinear term.
The Hamiltonian term is treated as an integrating factor by forward and backward
Fourier transforms, which are here carried out classically. This split allows
us to avoid higher-order time integration schemes, to apply a first-order explicit
time stepping for the remaining nonlinear NLSE term in a variational algorithm
block, and thus to avoid numerical instabilities. We demonstrate that the analytical
solution is reproduced with a small root mean square error for a long time interval
over which a nonlinear soliton propagates significantly forward in space while
keeping its shape. We analyze the accuracy and complexity of the quantum algorithm,
the expressibility of the ansatz circuit and compare it with classical approaches.
Furthermore, we investigate the influence of algorithm parameters on the accuracy
of the results, including the temporal step width and the depth of the quantum
circuit."
article_number: '23478'
author:
- first_name: Nikolas
full_name: Köcher, Nikolas
id: '79191'
last_name: Köcher
- first_name: Hendrik
full_name: Rose, Hendrik
id: '55958'
last_name: Rose
orcid: 0000-0002-3079-5428
- first_name: Sachin S.
full_name: Bharadwaj, Sachin S.
last_name: Bharadwaj
- first_name: Jörg
full_name: Schumacher, Jörg
last_name: Schumacher
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Köcher N, Rose H, Bharadwaj SS, Schumacher J, Schumacher S. Numerical solution
of nonlinear Schrödinger equation by a hybrid pseudospectral-variational quantum
algorithm. Scientific Reports. 2025;15(1). doi:10.1038/s41598-025-05660-3
apa: Köcher, N., Rose, H., Bharadwaj, S. S., Schumacher, J., & Schumacher, S.
(2025). Numerical solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational
quantum algorithm. Scientific Reports, 15(1), Article 23478. https://doi.org/10.1038/s41598-025-05660-3
bibtex: '@article{Köcher_Rose_Bharadwaj_Schumacher_Schumacher_2025, title={Numerical
solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational
quantum algorithm}, volume={15}, DOI={10.1038/s41598-025-05660-3},
number={123478}, journal={Scientific Reports}, publisher={Springer Science and
Business Media LLC}, author={Köcher, Nikolas and Rose, Hendrik and Bharadwaj,
Sachin S. and Schumacher, Jörg and Schumacher, Stefan}, year={2025} }'
chicago: Köcher, Nikolas, Hendrik Rose, Sachin S. Bharadwaj, Jörg Schumacher, and
Stefan Schumacher. “Numerical Solution of Nonlinear Schrödinger Equation by a
Hybrid Pseudospectral-Variational Quantum Algorithm.” Scientific Reports
15, no. 1 (2025). https://doi.org/10.1038/s41598-025-05660-3.
ieee: 'N. Köcher, H. Rose, S. S. Bharadwaj, J. Schumacher, and S. Schumacher, “Numerical
solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational
quantum algorithm,” Scientific Reports, vol. 15, no. 1, Art. no. 23478,
2025, doi: 10.1038/s41598-025-05660-3.'
mla: Köcher, Nikolas, et al. “Numerical Solution of Nonlinear Schrödinger Equation
by a Hybrid Pseudospectral-Variational Quantum Algorithm.” Scientific Reports,
vol. 15, no. 1, 23478, Springer Science and Business Media LLC, 2025, doi:10.1038/s41598-025-05660-3.
short: N. Köcher, H. Rose, S.S. Bharadwaj, J. Schumacher, S. Schumacher, Scientific
Reports 15 (2025).
date_created: 2025-09-12T10:43:29Z
date_updated: 2025-09-12T10:57:22Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '27'
doi: 10.1038/s41598-025-05660-3
intvolume: ' 15'
issue: '1'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '445'
name: Hochleistungsrechner Noctua in Paderborn
publication: Scientific Reports
publication_identifier:
issn:
- 2045-2322
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Numerical solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational
quantum algorithm
type: journal_article
user_id: '16199'
volume: 15
year: '2025'
...
---
_id: '61249'
article_number: '024029'
author:
- first_name: Qiang
full_name: Ai, Qiang
last_name: Ai
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: Xinmiao
full_name: Yang, Xinmiao
last_name: Yang
- first_name: Jing
full_name: Wei, Jing
last_name: Wei
- first_name: Zaharias
full_name: Hatzopoulos, Zaharias
last_name: Hatzopoulos
- first_name: Pavlos G.
full_name: Savvidis, Pavlos G.
last_name: Savvidis
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Tingge
full_name: Gao, Tingge
last_name: Gao
citation:
ama: Ai Q, Wingenbach J, Yang X, et al. Optically and remotely controlling localization
of exciton-polariton condensates in a potential lattice. Physical Review Applied.
2025;23(2). doi:10.1103/physrevapplied.23.024029
apa: Ai, Q., Wingenbach, J., Yang, X., Wei, J., Hatzopoulos, Z., Savvidis, P. G.,
Schumacher, S., Ma, X., & Gao, T. (2025). Optically and remotely controlling
localization of exciton-polariton condensates in a potential lattice. Physical
Review Applied, 23(2), Article 024029. https://doi.org/10.1103/physrevapplied.23.024029
bibtex: '@article{Ai_Wingenbach_Yang_Wei_Hatzopoulos_Savvidis_Schumacher_Ma_Gao_2025,
title={Optically and remotely controlling localization of exciton-polariton condensates
in a potential lattice}, volume={23}, DOI={10.1103/physrevapplied.23.024029},
number={2024029}, journal={Physical Review Applied}, publisher={American Physical
Society (APS)}, author={Ai, Qiang and Wingenbach, Jan and Yang, Xinmiao and Wei,
Jing and Hatzopoulos, Zaharias and Savvidis, Pavlos G. and Schumacher, Stefan
and Ma, Xuekai and Gao, Tingge}, year={2025} }'
chicago: Ai, Qiang, Jan Wingenbach, Xinmiao Yang, Jing Wei, Zaharias Hatzopoulos,
Pavlos G. Savvidis, Stefan Schumacher, Xuekai Ma, and Tingge Gao. “Optically and
Remotely Controlling Localization of Exciton-Polariton Condensates in a Potential
Lattice.” Physical Review Applied 23, no. 2 (2025). https://doi.org/10.1103/physrevapplied.23.024029.
ieee: 'Q. Ai et al., “Optically and remotely controlling localization of
exciton-polariton condensates in a potential lattice,” Physical Review Applied,
vol. 23, no. 2, Art. no. 024029, 2025, doi: 10.1103/physrevapplied.23.024029.'
mla: Ai, Qiang, et al. “Optically and Remotely Controlling Localization of Exciton-Polariton
Condensates in a Potential Lattice.” Physical Review Applied, vol. 23,
no. 2, 024029, American Physical Society (APS), 2025, doi:10.1103/physrevapplied.23.024029.
short: Q. Ai, J. Wingenbach, X. Yang, J. Wei, Z. Hatzopoulos, P.G. Savvidis, S.
Schumacher, X. Ma, T. Gao, Physical Review Applied 23 (2025).
date_created: 2025-09-12T11:01:17Z
date_updated: 2025-09-12T11:02:33Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '230'
- _id: '35'
- _id: '27'
doi: 10.1103/physrevapplied.23.024029
intvolume: ' 23'
issue: '2'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Optically and remotely controlling localization of exciton-polariton condensates
in a potential lattice
type: journal_article
user_id: '16199'
volume: 23
year: '2025'
...
---
_id: '62867'
abstract:
- lang: eng
text: "ABSTRACT\r\n Effective
manipulation of photonic spin–orbit coupling (SOC) in microcavities is of fundamental
importance within topological photonics and applications. Anisotropic organic
single‐crystalline materials can induce abundant SOC phenomenon due to their flexible
tunability of molecular geometries, however, the intrinsic relationship between
molecular geometries/orientations in 3D space and photonic SOC is lacking. In
this study, we design two kinds of 2D organic polymorphs for the construction
of organic microcavities to investigate the structure‐performance relationships.
In two polymorphic microcavities, two distinctive photonic SOC phenomena are observed
regardless of the in‐plane anisotropy of organic polymorphs. Theoretical analysis
indicates that the photonic SOC strength is strongly influenced by the synergies
between the crystal anisotropy and the tilted collective molecular transition
dipole moment. Our results uncover the correlation mechanism between the structure
of molecules and photonic SOC and open an avenue to engineer complex photonic
SOC by use of organic microstructures towards the development of diverse integrated
photonic devices."
article_number: e01874
author:
- first_name: Ying
full_name: Ji, Ying
last_name: Ji
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Han
full_name: Huang, Han
last_name: Huang
- first_name: Yibo
full_name: Deng, Yibo
last_name: Deng
- first_name: Pingyang
full_name: Wang, Pingyang
last_name: Wang
- first_name: Teng
full_name: Long, Teng
last_name: Long
- first_name: Yuan
full_name: Li, Yuan
last_name: Li
- first_name: Ruiyang
full_name: Zhao, Ruiyang
last_name: Zhao
- first_name: Yunfei
full_name: Li, Yunfei
last_name: Li
- first_name: Cunbin
full_name: An, Cunbin
last_name: An
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Chunling
full_name: Gu, Chunling
last_name: Gu
- first_name: Bo
full_name: Liao, Bo
last_name: Liao
- first_name: Hongbing
full_name: Fu, Hongbing
last_name: Fu
- first_name: Qing
full_name: Liao, Qing
last_name: Liao
citation:
ama: Ji Y, Ma X, Huang H, et al. Molecular Orientation‐Dependent Photonic Spin–Orbit
Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals. Laser
& Photonics Reviews. Published online 2025. doi:10.1002/lpor.202501874
apa: Ji, Y., Ma, X., Huang, H., Deng, Y., Wang, P., Long, T., Li, Y., Zhao, R.,
Li, Y., An, C., Schumacher, S., Gu, C., Liao, B., Fu, H., & Liao, Q. (2025).
Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities
Filled with 2D Polymorphic Crystals. Laser & Photonics Reviews,
Article e01874. https://doi.org/10.1002/lpor.202501874
bibtex: '@article{Ji_Ma_Huang_Deng_Wang_Long_Li_Zhao_Li_An_et al._2025, title={Molecular
Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled
with 2D Polymorphic Crystals}, DOI={10.1002/lpor.202501874},
number={e01874}, journal={Laser & Photonics Reviews}, publisher={Wiley},
author={Ji, Ying and Ma, Xuekai and Huang, Han and Deng, Yibo and Wang, Pingyang
and Long, Teng and Li, Yuan and Zhao, Ruiyang and Li, Yunfei and An, Cunbin and
et al.}, year={2025} }'
chicago: Ji, Ying, Xuekai Ma, Han Huang, Yibo Deng, Pingyang Wang, Teng Long, Yuan
Li, et al. “Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic
Microcavities Filled with 2D Polymorphic Crystals.” Laser & Photonics
Reviews, 2025. https://doi.org/10.1002/lpor.202501874.
ieee: 'Y. Ji et al., “Molecular Orientation‐Dependent Photonic Spin–Orbit
Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals,” Laser
& Photonics Reviews, Art. no. e01874, 2025, doi: 10.1002/lpor.202501874.'
mla: Ji, Ying, et al. “Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling
in Organic Microcavities Filled with 2D Polymorphic Crystals.” Laser &
Photonics Reviews, e01874, Wiley, 2025, doi:10.1002/lpor.202501874.
short: Y. Ji, X. Ma, H. Huang, Y. Deng, P. Wang, T. Long, Y. Li, R. Zhao, Y. Li,
C. An, S. Schumacher, C. Gu, B. Liao, H. Fu, Q. Liao, Laser & Photonics
Reviews (2025).
date_created: 2025-12-04T12:33:48Z
date_updated: 2025-12-04T12:34:45Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '230'
doi: 10.1002/lpor.202501874
language:
- iso: eng
publication: Laser & Photonics Reviews
publication_identifier:
issn:
- 1863-8880
- 1863-8899
publication_status: published
publisher: Wiley
status: public
title: Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities
Filled with 2D Polymorphic Crystals
type: journal_article
user_id: '16199'
year: '2025'
...
---
_id: '62862'
abstract:
- lang: eng
text: Exciton polariton condensates are macroscopic coherent states in which
topological excitations can be observed. In this work, we observe the excitation
of the vortices and realize tuning the topological charge by manipulating the
pumping configurations. Using a digital micromirror device, we constructed an
annular pumping pattern where the inner and outer rings can be easily tuned. Both
the number and the topological charge of the vortices can be changed by slightly
tuning the inner ring position against the outer ring. The experimental results
can be reproduced in theory by the Gross–Pitaevskii equation. Our work offers
to generate and manipulate vortices in exciton polariton condensates using a straightforward
optical method.
article_number: '121103'
author:
- first_name: Qiang
full_name: Ai, Qiang
last_name: Ai
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Franziska
full_name: Barkhausen, Franziska
id: '63631'
last_name: Barkhausen
- first_name: Xiaokun
full_name: Zhai, Xiaokun
last_name: Zhai
- first_name: Chunzi
full_name: Xing, Chunzi
last_name: Xing
- first_name: Xinmiao
full_name: Yang, Xinmiao
last_name: Yang
- first_name: Peilin
full_name: Wang, Peilin
last_name: Wang
- first_name: Tianyu
full_name: Liu, Tianyu
last_name: Liu
- first_name: Yong
full_name: Zhang, Yong
last_name: Zhang
- first_name: Yazhou
full_name: Gu, Yazhou
last_name: Gu
- first_name: Peigang
full_name: Li, Peigang
last_name: Li
- first_name: Zhitong
full_name: Li, Zhitong
last_name: Li
- first_name: Zacharias
full_name: Hatzopoulos, Zacharias
last_name: Hatzopoulos
- first_name: Pavlos G.
full_name: Savvidis, Pavlos G.
last_name: Savvidis
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Tingge
full_name: Gao, Tingge
last_name: Gao
citation:
ama: Ai Q, Ma X, Barkhausen F, et al. Tuning polariton vortices in an asymmetric
ring potential. Applied Physics Letters. 2025;127(12). doi:10.1063/5.0287076
apa: Ai, Q., Ma, X., Barkhausen, F., Zhai, X., Xing, C., Yang, X., Wang, P., Liu,
T., Zhang, Y., Gu, Y., Li, P., Li, Z., Hatzopoulos, Z., Savvidis, P. G., Schumacher,
S., & Gao, T. (2025). Tuning polariton vortices in an asymmetric ring potential.
Applied Physics Letters, 127(12), Article 121103. https://doi.org/10.1063/5.0287076
bibtex: '@article{Ai_Ma_Barkhausen_Zhai_Xing_Yang_Wang_Liu_Zhang_Gu_et al._2025,
title={Tuning polariton vortices in an asymmetric ring potential}, volume={127},
DOI={10.1063/5.0287076}, number={12121103},
journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ai, Qiang
and Ma, Xuekai and Barkhausen, Franziska and Zhai, Xiaokun and Xing, Chunzi and
Yang, Xinmiao and Wang, Peilin and Liu, Tianyu and Zhang, Yong and Gu, Yazhou
and et al.}, year={2025} }'
chicago: Ai, Qiang, Xuekai Ma, Franziska Barkhausen, Xiaokun Zhai, Chunzi Xing,
Xinmiao Yang, Peilin Wang, et al. “Tuning Polariton Vortices in an Asymmetric
Ring Potential.” Applied Physics Letters 127, no. 12 (2025). https://doi.org/10.1063/5.0287076.
ieee: 'Q. Ai et al., “Tuning polariton vortices in an asymmetric ring potential,”
Applied Physics Letters, vol. 127, no. 12, Art. no. 121103, 2025, doi:
10.1063/5.0287076.'
mla: Ai, Qiang, et al. “Tuning Polariton Vortices in an Asymmetric Ring Potential.”
Applied Physics Letters, vol. 127, no. 12, 121103, AIP Publishing, 2025,
doi:10.1063/5.0287076.
short: Q. Ai, X. Ma, F. Barkhausen, X. Zhai, C. Xing, X. Yang, P. Wang, T. Liu,
Y. Zhang, Y. Gu, P. Li, Z. Li, Z. Hatzopoulos, P.G. Savvidis, S. Schumacher, T.
Gao, Applied Physics Letters 127 (2025).
date_created: 2025-12-04T12:25:12Z
date_updated: 2025-12-04T12:27:02Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '230'
- _id: '27'
doi: 10.1063/5.0287076
intvolume: ' 127'
issue: '12'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
- 1077-3118
publication_status: published
publisher: AIP Publishing
status: public
title: Tuning polariton vortices in an asymmetric ring potential
type: journal_article
user_id: '16199'
volume: 127
year: '2025'
...
---
_id: '62865'
article_number: '115305'
author:
- first_name: Jinming
full_name: Sun, Jinming
last_name: Sun
- first_name: Manna
full_name: Chen, Manna
last_name: Chen
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Wei
full_name: Hu, Wei
last_name: Hu
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
citation:
ama: Sun J, Chen M, Schumacher S, Hu W, Ma X. Higher-order dark solitons and control
dynamics in microcavity polariton condensates. Physical Review B. 2025;112(11).
doi:10.1103/p357-vyq8
apa: Sun, J., Chen, M., Schumacher, S., Hu, W., & Ma, X. (2025). Higher-order
dark solitons and control dynamics in microcavity polariton condensates. Physical
Review B, 112(11), Article 115305. https://doi.org/10.1103/p357-vyq8
bibtex: '@article{Sun_Chen_Schumacher_Hu_Ma_2025, title={Higher-order dark solitons
and control dynamics in microcavity polariton condensates}, volume={112}, DOI={10.1103/p357-vyq8}, number={11115305},
journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Sun,
Jinming and Chen, Manna and Schumacher, Stefan and Hu, Wei and Ma, Xuekai}, year={2025}
}'
chicago: Sun, Jinming, Manna Chen, Stefan Schumacher, Wei Hu, and Xuekai Ma. “Higher-Order
Dark Solitons and Control Dynamics in Microcavity Polariton Condensates.” Physical
Review B 112, no. 11 (2025). https://doi.org/10.1103/p357-vyq8.
ieee: 'J. Sun, M. Chen, S. Schumacher, W. Hu, and X. Ma, “Higher-order dark solitons
and control dynamics in microcavity polariton condensates,” Physical Review
B, vol. 112, no. 11, Art. no. 115305, 2025, doi: 10.1103/p357-vyq8.'
mla: Sun, Jinming, et al. “Higher-Order Dark Solitons and Control Dynamics in Microcavity
Polariton Condensates.” Physical Review B, vol. 112, no. 11, 115305, American
Physical Society (APS), 2025, doi:10.1103/p357-vyq8.
short: J. Sun, M. Chen, S. Schumacher, W. Hu, X. Ma, Physical Review B 112 (2025).
date_created: 2025-12-04T12:28:52Z
date_updated: 2025-12-04T12:29:37Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '230'
doi: 10.1103/p357-vyq8
intvolume: ' 112'
issue: '11'
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Higher-order dark solitons and control dynamics in microcavity polariton condensates
type: journal_article
user_id: '16199'
volume: 112
year: '2025'
...
---
_id: '62866'
abstract:
- lang: eng
text: "Abstract\r\n \r\n The
development of efficient and broadly applicable n‐doping strategies for organic
semiconductors (OSCs) is crucial for advancing the performance of various organic
electronic devices. Here, a novel nucleophilic‐attack n‐doping mechanism is unveiled
that achieves exceptionally high conductivity in doped OSC films and demonstrates
broad applicability across OSCs. The remarkable efficacy of n‐Butyl lithium (n‐BuLi)
is highlighted in n‐doping C\r\n 60\r\n
\ and PC\r\n 61\r\n
\ BM, achieving a conductivity of 1.27 S cm\r\n −1\r\n
\ and 2.57 S cm\r\n −1\r\n
\ , respectively, which are among the highest reported values
for these materials. The investigation reveals that the n‐BuLi anion interacts
with electron‐deficient units in OSCs, generating a carbanion that facilitates
efficient electron transfer for n‐doping. This mechanism is further validated
across diverse fullerenes, polymeric, and small molecule OSCs, and is extendable
to other high‐performance dopants such as tert‐Butyllithium (tert‐BuLi) and sodium
ethoxide (NaOEt). Device studies show that n‐BuLi‐doped C\r\n 60\r\n
\ enables substantially improved diode rectification, attributed
to greater junction built‐in potential. These findings establish a unified chemical‐bonding‐based
n‐doping paradigm, complementing existing electrophilic‐attack p‐doping concepts,
and pave the way for achieving efficient doping of OSCs for advanced organic electronic
applications.\r\n "
article_number: e20487
author:
- first_name: Huan
full_name: Wei, Huan
last_name: Wei
- first_name: Tong
full_name: Wu, Tong
last_name: Wu
- first_name: Chuanding
full_name: Dong, Chuanding
last_name: Dong
- first_name: Chen
full_name: Chen, Chen
last_name: Chen
- first_name: Zhenqi
full_name: Gong, Zhenqi
last_name: Gong
- first_name: Jiangnan
full_name: Xia, Jiangnan
last_name: Xia
- first_name: Chengyuan
full_name: Peng, Chengyuan
last_name: Peng
- first_name: Jiaqi
full_name: Ding, Jiaqi
last_name: Ding
- first_name: Yu
full_name: Zhang, Yu
last_name: Zhang
- first_name: Wenpei
full_name: Shi, Wenpei
last_name: Shi
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Xue
full_name: Zhang, Xue
last_name: Zhang
- first_name: Yugang
full_name: Bai, Yugang
last_name: Bai
- first_name: Lang
full_name: Jiang, Lang
last_name: Jiang
- first_name: Lei
full_name: Liao, Lei
last_name: Liao
- first_name: Thuc‐Quyen
full_name: Nguyen, Thuc‐Quyen
last_name: Nguyen
- first_name: Yuanyuan
full_name: Hu, Yuanyuan
last_name: Hu
citation:
ama: Wei H, Wu T, Dong C, et al. Efficient n‐Doping of Organic Semiconductors via
a Broadly Applicable Nucleophilic‐Attack Mechanism. Advanced Science. Published
online 2025. doi:10.1002/advs.202520487
apa: Wei, H., Wu, T., Dong, C., Chen, C., Gong, Z., Xia, J., Peng, C., Ding, J.,
Zhang, Y., Shi, W., Schumacher, S., Zhang, X., Bai, Y., Jiang, L., Liao, L., Nguyen,
T., & Hu, Y. (2025). Efficient n‐Doping of Organic Semiconductors via a Broadly
Applicable Nucleophilic‐Attack Mechanism. Advanced Science, Article e20487.
https://doi.org/10.1002/advs.202520487
bibtex: '@article{Wei_Wu_Dong_Chen_Gong_Xia_Peng_Ding_Zhang_Shi_et al._2025, title={Efficient
n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack
Mechanism}, DOI={10.1002/advs.202520487},
number={e20487}, journal={Advanced Science}, publisher={Wiley}, author={Wei, Huan
and Wu, Tong and Dong, Chuanding and Chen, Chen and Gong, Zhenqi and Xia, Jiangnan
and Peng, Chengyuan and Ding, Jiaqi and Zhang, Yu and Shi, Wenpei and et al.},
year={2025} }'
chicago: Wei, Huan, Tong Wu, Chuanding Dong, Chen Chen, Zhenqi Gong, Jiangnan Xia,
Chengyuan Peng, et al. “Efficient N‐Doping of Organic Semiconductors via a Broadly
Applicable Nucleophilic‐Attack Mechanism.” Advanced Science, 2025. https://doi.org/10.1002/advs.202520487.
ieee: 'H. Wei et al., “Efficient n‐Doping of Organic Semiconductors via a
Broadly Applicable Nucleophilic‐Attack Mechanism,” Advanced Science, Art.
no. e20487, 2025, doi: 10.1002/advs.202520487.'
mla: Wei, Huan, et al. “Efficient N‐Doping of Organic Semiconductors via a Broadly
Applicable Nucleophilic‐Attack Mechanism.” Advanced Science, e20487, Wiley,
2025, doi:10.1002/advs.202520487.
short: H. Wei, T. Wu, C. Dong, C. Chen, Z. Gong, J. Xia, C. Peng, J. Ding, Y. Zhang,
W. Shi, S. Schumacher, X. Zhang, Y. Bai, L. Jiang, L. Liao, T. Nguyen, Y. Hu,
Advanced Science (2025).
date_created: 2025-12-04T12:30:39Z
date_updated: 2025-12-05T13:40:48Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '230'
doi: 10.1002/advs.202520487
language:
- iso: eng
publication: Advanced Science
publication_identifier:
issn:
- 2198-3844
- 2198-3844
publication_status: published
publisher: Wiley
status: public
title: Efficient n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack
Mechanism
type: journal_article
user_id: '16199'
year: '2025'
...
---
_id: '60992'
abstract:
- lang: eng
text: Non-Hermitian systems hosting exceptional points (EPs) exhibit enhanced sensitivity
and unconventional mode dynamics. Going beyond isolated EPs, here we report on
the existence of exceptional rings (ERs) in planar optical resonators with specific
form of circular dichroism and TE-TM splitting. Such exceptional rings possess
intriguing topologies as discussed earlier for condensed matter systems, but they
remain virtually unexplored in presence of nonlinearity, for which our photonic
platform is ideal. We find that when Kerr-type nonlinearity (or saturable gain)
is introduced, the linear ER splits into two concentric ERs, with the larger-radius
ring being a ring of third-order EPs. Transitioning from linear to nonlinear regime,
we present a rigorous analysis of spectral topology and report enhanced and adjustable
perturbation response in the nonlinear regime. Whereas certain features are specific
to our system, the results on non-Hermitian spectral topology and nonlinearity-enhanced
perturbation response are generic and equally relevant to a broad class of other
nonlinear non-Hermitian systems, providing a universal framework for engineering
ERs and EPs in nonlinear non-Hermitian systems.
author:
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: 'Laura '
full_name: 'Ares Santos, Laura '
last_name: Ares Santos
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Wingenbach J, Ares Santos L, Ma X, Sperling J, Schumacher S. Sensitivity and
Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities.
Arxiv. Published online 2025. doi:10.48550/ARXIV.2507.07099
apa: Wingenbach, J., Ares Santos, L., Ma, X., Sperling, J., & Schumacher, S.
(2025). Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian
Planar Optical Microcavities. Arxiv. https://doi.org/10.48550/ARXIV.2507.07099
bibtex: '@article{Wingenbach_Ares Santos_Ma_Sperling_Schumacher_2025, title={Sensitivity
and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities},
DOI={10.48550/ARXIV.2507.07099},
journal={Arxiv}, publisher={Arxiv}, author={Wingenbach, Jan and Ares Santos, Laura and
Ma, Xuekai and Sperling, Jan and Schumacher, Stefan}, year={2025} }'
chicago: Wingenbach, Jan, Laura Ares Santos, Xuekai Ma, Jan Sperling, and Stefan
Schumacher. “Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian
Planar Optical Microcavities.” Arxiv, 2025. https://doi.org/10.48550/ARXIV.2507.07099.
ieee: 'J. Wingenbach, L. Ares Santos, X. Ma, J. Sperling, and S. Schumacher, “Sensitivity
and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities,”
Arxiv, 2025, doi: 10.48550/ARXIV.2507.07099.'
mla: Wingenbach, Jan, et al. “Sensitivity and Topology of Exceptional Rings in Nonlinear
Non-Hermitian Planar Optical Microcavities.” Arxiv, Arxiv, 2025, doi:10.48550/ARXIV.2507.07099.
short: J. Wingenbach, L. Ares Santos, X. Ma, J. Sperling, S. Schumacher, Arxiv (2025).
date_created: 2025-08-25T11:15:22Z
date_updated: 2025-12-05T13:55:48Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '706'
- _id: '705'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '27'
doi: 10.48550/ARXIV.2507.07099
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '174'
name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
Systemen: Eine theoretische Analyse'
- _id: '56'
name: TRR 142 - Project Area C
publication: Arxiv
publisher: Arxiv
status: public
title: Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar
Optical Microcavities
type: journal_article
user_id: '16199'
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: '50829'
article_number: L012017
author:
- first_name: Nils
full_name: Heinisch, Nils
id: '90283'
last_name: Heinisch
- first_name: Nikolas
full_name: Köcher, Nikolas
id: '79191'
last_name: Köcher
- first_name: David
full_name: Bauch, David
id: '44172'
last_name: Bauch
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: 'Heinisch N, Köcher N, Bauch D, Schumacher S. Swing-up dynamics in quantum
emitter cavity systems: Near ideal single photons and entangled photon pairs.
Physical Review Research. 2024;6(1). doi:10.1103/PhysRevResearch.6.L012017'
apa: 'Heinisch, N., Köcher, N., Bauch, D., & Schumacher, S. (2024). Swing-up
dynamics in quantum emitter cavity systems: Near ideal single photons and entangled
photon pairs. Physical Review Research, 6(1), Article L012017. https://doi.org/10.1103/PhysRevResearch.6.L012017'
bibtex: '@article{Heinisch_Köcher_Bauch_Schumacher_2024, title={Swing-up dynamics
in quantum emitter cavity systems: Near ideal single photons and entangled photon
pairs}, volume={6}, DOI={10.1103/PhysRevResearch.6.L012017},
number={1L012017}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Heinisch, Nils and Köcher, Nikolas and Bauch, David and
Schumacher, Stefan}, year={2024} }'
chicago: 'Heinisch, Nils, Nikolas Köcher, David Bauch, and Stefan Schumacher. “Swing-up
Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled
Photon Pairs.” Physical Review Research 6, no. 1 (2024). https://doi.org/10.1103/PhysRevResearch.6.L012017.'
ieee: 'N. Heinisch, N. Köcher, D. Bauch, and S. Schumacher, “Swing-up dynamics in
quantum emitter cavity systems: Near ideal single photons and entangled photon
pairs,” Physical Review Research, vol. 6, no. 1, Art. no. L012017, 2024,
doi: 10.1103/PhysRevResearch.6.L012017.'
mla: 'Heinisch, Nils, et al. “Swing-up Dynamics in Quantum Emitter Cavity Systems:
Near Ideal Single Photons and Entangled Photon Pairs.” Physical Review Research,
vol. 6, no. 1, L012017, American Physical Society (APS), 2024, doi:10.1103/PhysRevResearch.6.L012017.'
short: N. Heinisch, N. Köcher, D. Bauch, S. Schumacher, Physical Review Research
6 (2024).
date_created: 2024-01-24T15:17:37Z
date_updated: 2024-01-24T16:07:57Z
department:
- _id: '230'
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '297'
doi: 10.1103/PhysRevResearch.6.L012017
intvolume: ' 6'
issue: '1'
language:
- iso: eng
project:
- _id: '173'
grant_number: '231447078'
name: 'TRR 142 - C09: TRR 142 - Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen (C09*)'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons
and entangled photon pairs'
type: journal_article
user_id: '90283'
volume: 6
year: '2024'
...
---
_id: '51105'
author:
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
citation:
ama: Wingenbach J, Schumacher S, Ma X. Manipulating spectral topology and exceptional
points by nonlinearity in non-Hermitian polariton systems. Physical Review
Research, in press. Published online 2024.
apa: Wingenbach, J., Schumacher, S., & Ma, X. (2024). Manipulating spectral
topology and exceptional points by nonlinearity in non-Hermitian polariton systems.
Physical Review Research, in Press.
bibtex: '@article{Wingenbach_Schumacher_Ma_2024, title={Manipulating spectral topology
and exceptional points by nonlinearity in non-Hermitian polariton systems}, journal={Physical
Review Research, in press}, author={Wingenbach, Jan and Schumacher, Stefan and
Ma, Xuekai}, year={2024} }'
chicago: Wingenbach, Jan, Stefan Schumacher, and Xuekai Ma. “Manipulating Spectral
Topology and Exceptional Points by Nonlinearity in Non-Hermitian Polariton Systems.”
Physical Review Research, in Press, 2024.
ieee: J. Wingenbach, S. Schumacher, and X. Ma, “Manipulating spectral topology and
exceptional points by nonlinearity in non-Hermitian polariton systems,” Physical
Review Research, in press, 2024.
mla: Wingenbach, Jan, et al. “Manipulating Spectral Topology and Exceptional Points
by Nonlinearity in Non-Hermitian Polariton Systems.” Physical Review Research,
in Press, 2024.
short: J. Wingenbach, S. Schumacher, X. Ma, Physical Review Research, in Press (2024).
date_created: 2024-01-31T13:49:29Z
date_updated: 2024-01-31T13:52:56Z
department:
- _id: '15'
language:
- iso: eng
publication: Physical Review Research, in press
status: public
title: Manipulating spectral topology and exceptional points by nonlinearity in non-Hermitian
polariton systems
type: journal_article
user_id: '59416'
year: '2024'
...
---
_id: '51221'
abstract:
- lang: eng
text: Charge transfer mechanism in the deprotonation-induced n-type doping
of PCBM.
author:
- first_name: Chuan-Ding
full_name: Dong, Chuan-Ding
id: '67188'
last_name: Dong
- first_name: Fabian
full_name: Bauch, Fabian
id: '61389'
last_name: Bauch
orcid: 0009-0008-6279-077X
- first_name: Yuanyuan
full_name: Hu, Yuanyuan
last_name: Hu
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Dong C-D, Bauch F, Hu Y, Schumacher S. Charge transfer in superbase n-type
doping of PCBM induced by deprotonation. Physical Chemistry Chemical Physics.
2024;26(5):4194-4199. doi:10.1039/d3cp05105f
apa: Dong, C.-D., Bauch, F., Hu, Y., & Schumacher, S. (2024). Charge transfer
in superbase n-type doping of PCBM induced by deprotonation. Physical Chemistry
Chemical Physics, 26(5), 4194–4199. https://doi.org/10.1039/d3cp05105f
bibtex: '@article{Dong_Bauch_Hu_Schumacher_2024, title={Charge transfer in superbase
n-type doping of PCBM induced by deprotonation}, volume={26}, DOI={10.1039/d3cp05105f},
number={5}, journal={Physical Chemistry Chemical Physics}, publisher={Royal Society
of Chemistry (RSC)}, author={Dong, Chuan-Ding and Bauch, Fabian and Hu, Yuanyuan
and Schumacher, Stefan}, year={2024}, pages={4194–4199} }'
chicago: 'Dong, Chuan-Ding, Fabian Bauch, Yuanyuan Hu, and Stefan Schumacher. “Charge
Transfer in Superbase N-Type Doping of PCBM Induced by Deprotonation.” Physical
Chemistry Chemical Physics 26, no. 5 (2024): 4194–99. https://doi.org/10.1039/d3cp05105f.'
ieee: 'C.-D. Dong, F. Bauch, Y. Hu, and S. Schumacher, “Charge transfer in superbase
n-type doping of PCBM induced by deprotonation,” Physical Chemistry Chemical
Physics, vol. 26, no. 5, pp. 4194–4199, 2024, doi: 10.1039/d3cp05105f.'
mla: Dong, Chuan-Ding, et al. “Charge Transfer in Superbase N-Type Doping of PCBM
Induced by Deprotonation.” Physical Chemistry Chemical Physics, vol. 26,
no. 5, Royal Society of Chemistry (RSC), 2024, pp. 4194–99, doi:10.1039/d3cp05105f.
short: C.-D. Dong, F. Bauch, Y. Hu, S. Schumacher, Physical Chemistry Chemical Physics
26 (2024) 4194–4199.
date_created: 2024-02-07T14:15:44Z
date_updated: 2024-02-07T14:35:55Z
department:
- _id: '35'
- _id: '15'
doi: 10.1039/d3cp05105f
intvolume: ' 26'
issue: '5'
keyword:
- Physical and Theoretical Chemistry
- General Physics and Astronomy
language:
- iso: eng
page: 4194-4199
publication: Physical Chemistry Chemical Physics
publication_identifier:
issn:
- 1463-9076
- 1463-9084
publication_status: published
publisher: Royal Society of Chemistry (RSC)
status: public
title: Charge transfer in superbase n-type doping of PCBM induced by deprotonation
type: journal_article
user_id: '61389'
volume: 26
year: '2024'
...
---
_id: '52534'
author:
- first_name: Fabian
full_name: Bauch, Fabian
id: '61389'
last_name: Bauch
orcid: 0009-0008-6279-077X
- first_name: Chuan-Ding
full_name: Dong, Chuan-Ding
id: '67188'
last_name: Dong
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch F, Dong C-D, Schumacher S. Dynamics of Electron–Hole Coulomb Attractive
Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers. The Journal
of Physical Chemistry C. 2024;128(8):3525-3532. doi:10.1021/acs.jpcc.3c07513
apa: Bauch, F., Dong, C.-D., & Schumacher, S. (2024). Dynamics of Electron–Hole
Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor
Polymers. The Journal of Physical Chemistry C, 128(8), 3525–3532.
https://doi.org/10.1021/acs.jpcc.3c07513
bibtex: '@article{Bauch_Dong_Schumacher_2024, title={Dynamics of Electron–Hole Coulomb
Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers},
volume={128}, DOI={10.1021/acs.jpcc.3c07513},
number={8}, journal={The Journal of Physical Chemistry C}, publisher={American
Chemical Society (ACS)}, author={Bauch, Fabian and Dong, Chuan-Ding and Schumacher,
Stefan}, year={2024}, pages={3525–3532} }'
chicago: 'Bauch, Fabian, Chuan-Ding Dong, and Stefan Schumacher. “Dynamics of Electron–Hole
Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor
Polymers.” The Journal of Physical Chemistry C 128, no. 8 (2024): 3525–32.
https://doi.org/10.1021/acs.jpcc.3c07513.'
ieee: 'F. Bauch, C.-D. Dong, and S. Schumacher, “Dynamics of Electron–Hole Coulomb
Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers,”
The Journal of Physical Chemistry C, vol. 128, no. 8, pp. 3525–3532, 2024,
doi: 10.1021/acs.jpcc.3c07513.'
mla: Bauch, Fabian, et al. “Dynamics of Electron–Hole Coulomb Attractive Energy
and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers.” The Journal
of Physical Chemistry C, vol. 128, no. 8, American Chemical Society (ACS),
2024, pp. 3525–32, doi:10.1021/acs.jpcc.3c07513.
short: F. Bauch, C.-D. Dong, S. Schumacher, The Journal of Physical Chemistry C
128 (2024) 3525–3532.
date_created: 2024-03-13T12:23:15Z
date_updated: 2024-03-14T09:27:57Z
department:
- _id: '35'
- _id: '15'
doi: 10.1021/acs.jpcc.3c07513
intvolume: ' 128'
issue: '8'
keyword:
- Surfaces
- Coatings and Films
- Physical and Theoretical Chemistry
- General Energy
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
page: 3525-3532
publication: The Journal of Physical Chemistry C
publication_identifier:
issn:
- 1932-7447
- 1932-7455
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot
Excitons in Donor–Acceptor Polymers
type: journal_article
user_id: '61389'
volume: 128
year: '2024'
...
---
_id: '60023'
author:
- first_name: Helene
full_name: Wetter, Helene
last_name: Wetter
- first_name: Wenlong
full_name: Gao, Wenlong
last_name: Gao
- first_name: Falk
full_name: Rehberg, Falk
last_name: Rehberg
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: 'Wetter H, Gao W, Rehberg F, Wingenbach J, Schumacher S, Zentgraf T. Dielectric
metasurface for wave-vector variant and circular polarization dependent transmission.
In: Proceedings of The 14th International Conference on Metamaterials, Photonic
Crystals and Plasmonics. ; 2024.'
apa: Wetter, H., Gao, W., Rehberg, F., Wingenbach, J., Schumacher, S., & Zentgraf,
T. (2024). Dielectric metasurface for wave-vector variant and circular polarization
dependent transmission. Proceedings of The 14th International Conference on
Metamaterials, Photonic Crystals and Plasmonics. META 2024 - The 14th International
Conference on Metamaterials, Photonic Crystals and Plasmonics, Toyama, Japan.
bibtex: '@inproceedings{Wetter_Gao_Rehberg_Wingenbach_Schumacher_Zentgraf_2024,
title={Dielectric metasurface for wave-vector variant and circular polarization
dependent transmission}, booktitle={Proceedings of The 14th International Conference
on Metamaterials, Photonic Crystals and Plasmonics}, author={Wetter, Helene and
Gao, Wenlong and Rehberg, Falk and Wingenbach, Jan and Schumacher, Stefan and
Zentgraf, Thomas}, year={2024} }'
chicago: Wetter, Helene, Wenlong Gao, Falk Rehberg, Jan Wingenbach, Stefan Schumacher,
and Thomas Zentgraf. “Dielectric Metasurface for Wave-Vector Variant and Circular
Polarization Dependent Transmission.” In Proceedings of The 14th International
Conference on Metamaterials, Photonic Crystals and Plasmonics, 2024.
ieee: H. Wetter, W. Gao, F. Rehberg, J. Wingenbach, S. Schumacher, and T. Zentgraf,
“Dielectric metasurface for wave-vector variant and circular polarization dependent
transmission,” presented at the META 2024 - The 14th International Conference
on Metamaterials, Photonic Crystals and Plasmonics, Toyama, Japan, 2024.
mla: Wetter, Helene, et al. “Dielectric Metasurface for Wave-Vector Variant and
Circular Polarization Dependent Transmission.” Proceedings of The 14th International
Conference on Metamaterials, Photonic Crystals and Plasmonics, 2024.
short: 'H. Wetter, W. Gao, F. Rehberg, J. Wingenbach, S. Schumacher, T. Zentgraf,
in: Proceedings of The 14th International Conference on Metamaterials, Photonic
Crystals and Plasmonics, 2024.'
conference:
end_date: 2024-07-19
location: Toyama, Japan
name: META 2024 - The 14th International Conference on Metamaterials, Photonic Crystals
and Plasmonics
start_date: 2024-07-16
date_created: 2025-05-23T06:30:36Z
date_updated: 2025-05-23T06:34:16Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '164'
grant_number: '231447078'
name: 'TRR 142 - A09: TRR 142 - Erzeugung von Drei-Photonen-Zuständen mit On-Chip
Pumplichtunterdrückung in topologischen Wellenleitern (A09*)'
publication: Proceedings of The 14th International Conference on Metamaterials, Photonic
Crystals and Plasmonics
publication_identifier:
issn:
- 2429-1390
status: public
title: Dielectric metasurface for wave-vector variant and circular polarization dependent
transmission
type: conference
user_id: '30525'
year: '2024'
...
---
_id: '61251'
abstract:
- lang: eng
text: We theoretically investigate strategies for the deterministic creation
of trains of time-bin entangled photons using an individual quantum emitter described
by a Λ-type electronic system. We explicitly demonstrate the theoretical generation
of linear cluster states with substantial numbers of entangled photonic qubits
in full microscopic numerical simulations. The underlying scheme is based on the
manipulation of ground state coherences through precise optical driving. One important
finding is that the most easily accessible quality metrics, the achievable rotation
fidelities, fall short in assessing the actual quantum correlations of the emitted
photons in the face of losses. To address this, we explicitly calculate stabilizer
generator expectation values as a superior gauge for the quantum properties of
the generated many-photon state. With widespread applicability in other emitter
and excitation–emission schemes also, our work lays the conceptual foundations
for an in-depth practical analysis of time-bin entanglement based on full numerical
simulations with predictive capabilities for realistic systems and setups, including
losses and imperfections. The specific results shown in the present work illustrate
that with controlled minimization of losses and realistic system parameters for
quantum-dot type systems, useful linear cluster states of significant lengths
can be generated in the calculations, discussing the possibility of scalability
for quantum information processing endeavors.
article_number: '036110'
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Nikolas
full_name: Köcher, Nikolas
id: '79191'
last_name: Köcher
- first_name: Nils
full_name: Heinisch, Nils
id: '90283'
last_name: Heinisch
orcid: 0009-0006-0984-2097
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic
generation of linear photonic cluster states. APL Quantum. 2024;1(3). doi:10.1063/5.0214197
apa: Bauch, D., Köcher, N., Heinisch, N., & Schumacher, S. (2024). Time-bin
entanglement in the deterministic generation of linear photonic cluster states.
APL Quantum, 1(3), Article 036110. https://doi.org/10.1063/5.0214197
bibtex: '@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement
in the deterministic generation of linear photonic cluster states}, volume={1},
DOI={10.1063/5.0214197}, number={3036110},
journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher,
Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }'
chicago: Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin
Entanglement in the Deterministic Generation of Linear Photonic Cluster States.”
APL Quantum 1, no. 3 (2024). https://doi.org/10.1063/5.0214197.
ieee: 'D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement
in the deterministic generation of linear photonic cluster states,” APL Quantum,
vol. 1, no. 3, Art. no. 036110, 2024, doi: 10.1063/5.0214197.'
mla: Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation
of Linear Photonic Cluster States.” APL Quantum, vol. 1, no. 3, 036110,
AIP Publishing, 2024, doi:10.1063/5.0214197.
short: D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).
date_created: 2025-09-12T11:08:59Z
date_updated: 2025-09-12T11:11:32Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '27'
- _id: '429'
- _id: '623'
doi: 10.1063/5.0214197
intvolume: ' 1'
issue: '3'
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '56'
name: TRR 142 - Project Area C
- _id: '173'
name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen'
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: APL Quantum
publication_identifier:
issn:
- 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Time-bin entanglement in the deterministic generation of linear photonic cluster
states
type: journal_article
user_id: '16199'
volume: 1
year: '2024'
...
---
_id: '61250'
author:
- first_name: Christoph
full_name: Bennenhei, Christoph
last_name: Bennenhei
- first_name: Hangyong
full_name: Shan, Hangyong
last_name: Shan
- first_name: Marti
full_name: Struve, Marti
last_name: Struve
- first_name: Nils
full_name: Kunte, Nils
last_name: Kunte
- first_name: Falk
full_name: Eilenberger, Falk
last_name: Eilenberger
- first_name: Jürgen
full_name: Ohmer, Jürgen
last_name: Ohmer
- first_name: Utz
full_name: Fischer, Utz
last_name: Fischer
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Christian
full_name: Schneider, Christian
last_name: Schneider
- first_name: Martin
full_name: Esmann, Martin
last_name: Esmann
citation:
ama: Bennenhei C, Shan H, Struve M, et al. Organic Room-Temperature Polariton Condensate
in a Higher-Order Topological Lattice. ACS Photonics. 2024;11(8):3046-3054.
doi:10.1021/acsphotonics.4c00268
apa: Bennenhei, C., Shan, H., Struve, M., Kunte, N., Eilenberger, F., Ohmer, J.,
Fischer, U., Schumacher, S., Ma, X., Schneider, C., & Esmann, M. (2024). Organic
Room-Temperature Polariton Condensate in a Higher-Order Topological Lattice. ACS
Photonics, 11(8), 3046–3054. https://doi.org/10.1021/acsphotonics.4c00268
bibtex: '@article{Bennenhei_Shan_Struve_Kunte_Eilenberger_Ohmer_Fischer_Schumacher_Ma_Schneider_et
al._2024, title={Organic Room-Temperature Polariton Condensate in a Higher-Order
Topological Lattice}, volume={11}, DOI={10.1021/acsphotonics.4c00268},
number={8}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)},
author={Bennenhei, Christoph and Shan, Hangyong and Struve, Marti and Kunte, Nils
and Eilenberger, Falk and Ohmer, Jürgen and Fischer, Utz and Schumacher, Stefan
and Ma, Xuekai and Schneider, Christian and et al.}, year={2024}, pages={3046–3054}
}'
chicago: 'Bennenhei, Christoph, Hangyong Shan, Marti Struve, Nils Kunte, Falk Eilenberger,
Jürgen Ohmer, Utz Fischer, et al. “Organic Room-Temperature Polariton Condensate
in a Higher-Order Topological Lattice.” ACS Photonics 11, no. 8 (2024):
3046–54. https://doi.org/10.1021/acsphotonics.4c00268.'
ieee: 'C. Bennenhei et al., “Organic Room-Temperature Polariton Condensate
in a Higher-Order Topological Lattice,” ACS Photonics, vol. 11, no. 8,
pp. 3046–3054, 2024, doi: 10.1021/acsphotonics.4c00268.'
mla: Bennenhei, Christoph, et al. “Organic Room-Temperature Polariton Condensate
in a Higher-Order Topological Lattice.” ACS Photonics, vol. 11, no. 8,
American Chemical Society (ACS), 2024, pp. 3046–54, doi:10.1021/acsphotonics.4c00268.
short: C. Bennenhei, H. Shan, M. Struve, N. Kunte, F. Eilenberger, J. Ohmer, U.
Fischer, S. Schumacher, X. Ma, C. Schneider, M. Esmann, ACS Photonics 11 (2024)
3046–3054.
date_created: 2025-09-12T11:06:43Z
date_updated: 2025-09-12T11:08:26Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '230'
doi: 10.1021/acsphotonics.4c00268
intvolume: ' 11'
issue: '8'
language:
- iso: eng
page: 3046-3054
publication: ACS Photonics
publication_identifier:
issn:
- 2330-4022
- 2330-4022
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Organic Room-Temperature Polariton Condensate in a Higher-Order Topological
Lattice
type: journal_article
user_id: '16199'
volume: 11
year: '2024'
...
---
_id: '61253'
abstract:
- lang: eng
text: "In the SUPER scheme (Swing-UP of the quantum EmitteR population),
excitation of a quantum emitter is achieved with two off-resonant, red-detuned
laser pulses. This allows the generation of high-quality single photons without
the need of complex laser stray light suppression or careful spectral filtering.
In the present work, we extend this promising method to quantum emitters, specifically
semiconductor quantum dots, inside a resonant optical cavity. A significant advantage
of the SUPER scheme is identified in that it eliminates re-excitation of the quantum
emitter by suppressing photon emission during the excitation cycle. This, in turn,
leads to almost ideal single-photon purity, overcoming a major factor typically
limiting the quality of photons generated with quantum emitters in high-quality
cavities. We further find that for cavity-mediated biexciton emission of degenerate
photon pairs, the SUPER scheme leads to near-perfect biexciton initialization
with very high values of polarization entanglement of emitted photon pairs.\r\n
\ \r\n \r\n \r\n
\ \r\n Published
by the American Physical Society\r\n 2024\r\n
\ \r\n \r\n
\ "
article_number: L012017
author:
- first_name: Nils
full_name: Heinisch, Nils
id: '90283'
last_name: Heinisch
orcid: 0009-0006-0984-2097
- first_name: Nikolas
full_name: Köcher, Nikolas
id: '79191'
last_name: Köcher
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: 'Heinisch N, Köcher N, Bauch D, Schumacher S. Swing-up dynamics in quantum
emitter cavity systems: Near ideal single photons and entangled photon pairs.
Physical Review Research. 2024;6(1). doi:10.1103/physrevresearch.6.l012017'
apa: 'Heinisch, N., Köcher, N., Bauch, D., & Schumacher, S. (2024). Swing-up
dynamics in quantum emitter cavity systems: Near ideal single photons and entangled
photon pairs. Physical Review Research, 6(1), Article L012017. https://doi.org/10.1103/physrevresearch.6.l012017'
bibtex: '@article{Heinisch_Köcher_Bauch_Schumacher_2024, title={Swing-up dynamics
in quantum emitter cavity systems: Near ideal single photons and entangled photon
pairs}, volume={6}, DOI={10.1103/physrevresearch.6.l012017},
number={1L012017}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Heinisch, Nils and Köcher, Nikolas and Bauch, David and
Schumacher, Stefan}, year={2024} }'
chicago: 'Heinisch, Nils, Nikolas Köcher, David Bauch, and Stefan Schumacher. “Swing-up
Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled
Photon Pairs.” Physical Review Research 6, no. 1 (2024). https://doi.org/10.1103/physrevresearch.6.l012017.'
ieee: 'N. Heinisch, N. Köcher, D. Bauch, and S. Schumacher, “Swing-up dynamics in
quantum emitter cavity systems: Near ideal single photons and entangled photon
pairs,” Physical Review Research, vol. 6, no. 1, Art. no. L012017, 2024,
doi: 10.1103/physrevresearch.6.l012017.'
mla: 'Heinisch, Nils, et al. “Swing-up Dynamics in Quantum Emitter Cavity Systems:
Near Ideal Single Photons and Entangled Photon Pairs.” Physical Review Research,
vol. 6, no. 1, L012017, American Physical Society (APS), 2024, doi:10.1103/physrevresearch.6.l012017.'
short: N. Heinisch, N. Köcher, D. Bauch, S. Schumacher, Physical Review Research
6 (2024).
date_created: 2025-09-12T11:16:31Z
date_updated: 2025-09-12T11:18:05Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '27'
doi: 10.1103/physrevresearch.6.l012017
intvolume: ' 6'
issue: '1'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '56'
name: TRR 142 - Project Area C
- _id: '173'
name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen'
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons
and entangled photon pairs'
type: journal_article
user_id: '16199'
volume: 6
year: '2024'
...
---
_id: '61255'
abstract:
- lang: eng
text: "Abstract\r\n Topological states
have been widely investigated in different types of systems and lattices. In the
present work, we report on topological edge states in double-wave (DW) chains,
which can be described by a generalized Aubry-André-Harper (AAH) model. For the
specific system of a driven-dissipative exciton polariton system we show that
in such potential chains, different types of edge states can form. For resonant
optical excitation, we further find that the optical nonlinearity leads to a multistability
of different edge states. This includes topologically protected edge states evolved
directly from individual linear eigenstates as well as additional edge states
that originate from nonlinearity-induced localization of bulk states. Extending
the system into two dimensions (2D) by stacking horizontal DW chains in the vertical
direction, we also create 2D multi-wave lattices. In such 2D lattices multiple
Su–Schrieffer–Heeger (SSH) chains appear along the vertical direction. The combination
of DW chains in the horizonal and SSH chains in the vertical direction then results
in the formation of higher-order topological insulator corner states. Multistable
corner states emerge in the nonlinear regime."
author:
- first_name: Tobias
full_name: Schneider, Tobias
last_name: Schneider
- first_name: Wenlong
full_name: Gao, Wenlong
id: '78853'
last_name: Gao
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
citation:
ama: Schneider T, Gao W, Zentgraf T, Schumacher S, Ma X. Topological edge and corner
states in coupled wave lattices in nonlinear polariton condensates. Nanophotonics.
2024;13(4):509-518. doi:10.1515/nanoph-2023-0556
apa: Schneider, T., Gao, W., Zentgraf, T., Schumacher, S., & Ma, X. (2024).
Topological edge and corner states in coupled wave lattices in nonlinear polariton
condensates. Nanophotonics, 13(4), 509–518. https://doi.org/10.1515/nanoph-2023-0556
bibtex: '@article{Schneider_Gao_Zentgraf_Schumacher_Ma_2024, title={Topological
edge and corner states in coupled wave lattices in nonlinear polariton condensates},
volume={13}, DOI={10.1515/nanoph-2023-0556},
number={4}, journal={Nanophotonics}, publisher={Walter de Gruyter GmbH}, author={Schneider,
Tobias and Gao, Wenlong and Zentgraf, Thomas and Schumacher, Stefan and Ma, Xuekai},
year={2024}, pages={509–518} }'
chicago: 'Schneider, Tobias, Wenlong Gao, Thomas Zentgraf, Stefan Schumacher, and
Xuekai Ma. “Topological Edge and Corner States in Coupled Wave Lattices in Nonlinear
Polariton Condensates.” Nanophotonics 13, no. 4 (2024): 509–18. https://doi.org/10.1515/nanoph-2023-0556.'
ieee: 'T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, and X. Ma, “Topological
edge and corner states in coupled wave lattices in nonlinear polariton condensates,”
Nanophotonics, vol. 13, no. 4, pp. 509–518, 2024, doi: 10.1515/nanoph-2023-0556.'
mla: Schneider, Tobias, et al. “Topological Edge and Corner States in Coupled Wave
Lattices in Nonlinear Polariton Condensates.” Nanophotonics, vol. 13, no.
4, Walter de Gruyter GmbH, 2024, pp. 509–18, doi:10.1515/nanoph-2023-0556.
short: T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, X. Ma, Nanophotonics 13
(2024) 509–518.
date_created: 2025-09-12T11:19:22Z
date_updated: 2025-09-12T11:22:41Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '27'
doi: 10.1515/nanoph-2023-0556
intvolume: ' 13'
issue: '4'
language:
- iso: eng
page: 509-518
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '54'
name: TRR 142 - Project Area A
- _id: '55'
name: TRR 142 - Project Area B
- _id: '61'
name: 'TRR 142; TP A04: Nichtlineare Quantenprozesstomographie und Photonik mit
Polaritonen in Mikrokavitäten'
- _id: '170'
name: 'TRR 142; TP B09: Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage
der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen'
publication: Nanophotonics
publication_identifier:
issn:
- 2192-8614
publication_status: published
publisher: Walter de Gruyter GmbH
status: public
title: Topological edge and corner states in coupled wave lattices in nonlinear polariton
condensates
type: journal_article
user_id: '16199'
volume: 13
year: '2024'
...