---
_id: '64978'
abstract:
- lang: eng
text: "The degrees of freedom (DoFs) of light determine the maximum number of independent
signal\r\nchannels an optical system can support. However, the polarization DoF
is intrinsically limited to two by\r\northogonality, which causes unavoidable
crosstalk and often forces position multiplexing, where different\r\nchannels
are assigned to distinct spatial locations to suppress crosstalk. This research
introduces a multilayer\r\nsynchronous polarization projection method that fundamentally
increases the DoF for polarization\r\nmultiplexing. The DoF equals twice the number
of projection layers. We experimentally demonstrate six-\r\nchannel polarization
multiplexing holography without position multiplexing. The six-channel multiplexing\r\nresults
indicate that our approach exceeds the conventional polarization multiplexing
method, yielding an\r\naverage 3.79 dB improvement in extinction ratio across
the six channels. Compared with the theoretical\r\nlimit of traditional polarization
multiplexing, our method reduces crosstalk by an average of 6.52 dB across\r\nall
channels in a seven-channel design. The polarization projection method breaks
the DoF limitation\r\nof polarization multiplexing, opening a path toward high-dimensional
photonic information encoding for\r\ncommunication, encryption, and imaging."
article_number: '26010'
article_type: original
author:
- first_name: Xiao
full_name: Jin, Xiao
last_name: Jin
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Jin X, Zentgraf T. Increasing the design degree of freedom for polarization
through multilayer synchronous polarization projection. Advanced Photonics.
2026;8(02). doi:10.1117/1.ap.8.2.026010
apa: Jin, X., & Zentgraf, T. (2026). Increasing the design degree of freedom
for polarization through multilayer synchronous polarization projection. Advanced
Photonics, 8(02), Article 26010. https://doi.org/10.1117/1.ap.8.2.026010
bibtex: '@article{Jin_Zentgraf_2026, title={Increasing the design degree of freedom
for polarization through multilayer synchronous polarization projection}, volume={8},
DOI={10.1117/1.ap.8.2.026010},
number={0226010}, journal={Advanced Photonics}, publisher={SPIE-Intl Soc Optical
Eng}, author={Jin, Xiao and Zentgraf, Thomas}, year={2026} }'
chicago: Jin, Xiao, and Thomas Zentgraf. “Increasing the Design Degree of Freedom
for Polarization through Multilayer Synchronous Polarization Projection.” Advanced
Photonics 8, no. 02 (2026). https://doi.org/10.1117/1.ap.8.2.026010.
ieee: 'X. Jin and T. Zentgraf, “Increasing the design degree of freedom for polarization
through multilayer synchronous polarization projection,” Advanced Photonics,
vol. 8, no. 02, Art. no. 26010, 2026, doi: 10.1117/1.ap.8.2.026010.'
mla: Jin, Xiao, and Thomas Zentgraf. “Increasing the Design Degree of Freedom for
Polarization through Multilayer Synchronous Polarization Projection.” Advanced
Photonics, vol. 8, no. 02, 26010, SPIE-Intl Soc Optical Eng, 2026, doi:10.1117/1.ap.8.2.026010.
short: X. Jin, T. Zentgraf, Advanced Photonics 8 (2026).
date_created: 2026-03-16T07:17:52Z
date_updated: 2026-03-16T07:20:07Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1117/1.ap.8.2.026010
intvolume: ' 8'
issue: '02'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.researching.cn/Articles/OJafd1e3b9e643c6be
oa: '1'
publication: Advanced Photonics
publication_identifier:
issn:
- 2577-5421
publication_status: published
publisher: SPIE-Intl Soc Optical Eng
quality_controlled: '1'
status: public
title: Increasing the design degree of freedom for polarization through multilayer
synchronous polarization projection
type: journal_article
user_id: '30525'
volume: 8
year: '2026'
...
---
_id: '65037'
abstract:
- lang: eng
text: "ABSTRACT\r\n Homogenization
methods simulate heterogeneous materials like composites effectively, but high
computational demands can offset their benefits. This work balances accuracy and
efficiency by assessing model and discretization errors of the finite element
method (FEM) through an adaptive numerical scheme. Two model hierarchies are introduced,
combining mean‐field and full‐field methods, and nonuniform transformation field
analysis (NTFA) with full‐field methods. Both hierarchies use a full‐field FEM
solution of the representative volume element (RVE) as reference. The study highlights
the benefits of using effective constitutive equations from mean‐field and full‐field
methods as well as NTFA methods, with a goal‐oriented a posteriori error estimator
based on duality techniques controlling mesh and model errors in a forwards‐in‐time
manner."
article_number: e70294
author:
- first_name: Arnold Tchomgue
full_name: Simeu, Arnold Tchomgue
last_name: Simeu
- first_name: Ismail
full_name: Caylak, Ismail
id: '75'
last_name: Caylak
- first_name: Richard
full_name: Ostwald, Richard
id: '106876'
last_name: Ostwald
orcid: 0000-0003-2147-8444
citation:
ama: Simeu AT, Caylak I, Ostwald R. Mesh and Model Adaptivity for Multiscale Elastoplastic
Models With Prandtl‐Reuss Type Material Laws. International Journal for Numerical
Methods in Engineering. 2026;127(6). doi:10.1002/nme.70294
apa: Simeu, A. T., Caylak, I., & Ostwald, R. (2026). Mesh and Model Adaptivity
for Multiscale Elastoplastic Models With Prandtl‐Reuss Type Material Laws. International
Journal for Numerical Methods in Engineering, 127(6), Article e70294.
https://doi.org/10.1002/nme.70294
bibtex: '@article{Simeu_Caylak_Ostwald_2026, title={Mesh and Model Adaptivity for
Multiscale Elastoplastic Models With Prandtl‐Reuss Type Material Laws}, volume={127},
DOI={10.1002/nme.70294}, number={6e70294},
journal={International Journal for Numerical Methods in Engineering}, publisher={Wiley},
author={Simeu, Arnold Tchomgue and Caylak, Ismail and Ostwald, Richard}, year={2026}
}'
chicago: Simeu, Arnold Tchomgue, Ismail Caylak, and Richard Ostwald. “Mesh and Model
Adaptivity for Multiscale Elastoplastic Models With Prandtl‐Reuss Type Material
Laws.” International Journal for Numerical Methods in Engineering 127,
no. 6 (2026). https://doi.org/10.1002/nme.70294.
ieee: 'A. T. Simeu, I. Caylak, and R. Ostwald, “Mesh and Model Adaptivity for Multiscale
Elastoplastic Models With Prandtl‐Reuss Type Material Laws,” International
Journal for Numerical Methods in Engineering, vol. 127, no. 6, Art. no. e70294,
2026, doi: 10.1002/nme.70294.'
mla: Simeu, Arnold Tchomgue, et al. “Mesh and Model Adaptivity for Multiscale Elastoplastic
Models With Prandtl‐Reuss Type Material Laws.” International Journal for Numerical
Methods in Engineering, vol. 127, no. 6, e70294, Wiley, 2026, doi:10.1002/nme.70294.
short: A.T. Simeu, I. Caylak, R. Ostwald, International Journal for Numerical Methods
in Engineering 127 (2026).
date_created: 2026-03-18T05:28:29Z
date_updated: 2026-03-18T05:31:02Z
department:
- _id: '9'
- _id: '952'
- _id: '321'
doi: 10.1002/nme.70294
intvolume: ' 127'
issue: '6'
language:
- iso: eng
publication: International Journal for Numerical Methods in Engineering
publication_identifier:
issn:
- 0029-5981
- 1097-0207
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Mesh and Model Adaptivity for Multiscale Elastoplastic Models With Prandtl‐Reuss
Type Material Laws
type: journal_article
user_id: '85414'
volume: 127
year: '2026'
...
---
_id: '65061'
abstract:
- lang: eng
text: "Abstract\r\n \r\n One
of the purposes for which XAI is often brought into play is to enable a user to
act responsibly. However, responsibility is a complex normative and social phenomenon
that we unfold in this chapter. We consider that the classical concepts of agency
and responsibility do not fully capture what is needed for meaningful collaboration
between human users and XAI. Advocating the perspective of sXAI, we argue that
the growing adaptivity of AI systems will result in sXAI being considered as partners.
Both partners adopt particular (dialogical) roles within a collaborative process
and take responsibility for them. We expect that these roles lead to reactive
attitudes toward the sXAI on the side of the human partners that make these roles
relational. They resemble those reactive attitudes that we hold toward other human
agents. For agents to exercise their responsibility, they need to possess agential
capacities to fulfill their role with respect to the structure of a social interaction.
Hence, sXAI can be expected to act responsibly. But because of XAI’s limited normative
capacities, it might rather act as a marginal agent. We refer to marginal agents
and show they can be scaffolded with regard to their agential capacities and their
knowledge about the structure of a social interaction. The structure links the
actions of the partners to each other in terms of a set of stimuli and responses
to it in pursuit of a particular goal. Hence, it is important to differentiate
between the different goals that a structure can impose for exercising responsibility.
Therefore, we follow (Responsibility from the margins. Oxford University Press;
2015.\r\n https://doi.org/10.1093/acprof:oso/9780198715672.24001.0001\r\n
\ ) and offer three structures that can help to organize responsibility
for\r\n decisions made\r\n with
the assistance of AI systems. These structures are attributability, answerability,
and accountability. Our insights will inform the development and design process
of XAI to meet the guiding principles of responsible research and innovation as
well as trustworthy AI.\r\n "
author:
- first_name: Katharina J.
full_name: Rohlfing, Katharina J.
id: '50352'
last_name: Rohlfing
orcid: 0000-0002-5676-8233
- first_name: Suzana
full_name: Alpsancar, Suzana
id: '93637'
last_name: Alpsancar
- first_name: Carsten
full_name: Schulte, Carsten
id: '60311'
last_name: Schulte
citation:
ama: 'Rohlfing KJ, Alpsancar S, Schulte C. Responsibilities in sXAI. In: Social
Explainable AI. Springer Nature Singapore; 2026:157-177. doi:10.1007/978-981-96-5290-7_9'
apa: Rohlfing, K. J., Alpsancar, S., & Schulte, C. (2026). Responsibilities
in sXAI. In Social Explainable AI (pp. 157–177). Springer Nature Singapore.
https://doi.org/10.1007/978-981-96-5290-7_9
bibtex: '@inbook{Rohlfing_Alpsancar_Schulte_2026, place={Singapore}, title={Responsibilities
in sXAI}, DOI={10.1007/978-981-96-5290-7_9},
booktitle={Social Explainable AI}, publisher={Springer Nature Singapore}, author={Rohlfing,
Katharina J. and Alpsancar, Suzana and Schulte, Carsten}, year={2026}, pages={157–177}
}'
chicago: 'Rohlfing, Katharina J., Suzana Alpsancar, and Carsten Schulte. “Responsibilities
in SXAI.” In Social Explainable AI, 157–77. Singapore: Springer Nature
Singapore, 2026. https://doi.org/10.1007/978-981-96-5290-7_9.'
ieee: 'K. J. Rohlfing, S. Alpsancar, and C. Schulte, “Responsibilities in sXAI,”
in Social Explainable AI, Singapore: Springer Nature Singapore, 2026, pp.
157–177.'
mla: Rohlfing, Katharina J., et al. “Responsibilities in SXAI.” Social Explainable
AI, Springer Nature Singapore, 2026, pp. 157–77, doi:10.1007/978-981-96-5290-7_9.
short: 'K.J. Rohlfing, S. Alpsancar, C. Schulte, in: Social Explainable AI, Springer
Nature Singapore, Singapore, 2026, pp. 157–177.'
date_created: 2026-03-19T10:59:18Z
date_updated: 2026-03-19T11:53:01Z
department:
- _id: '26'
- _id: '756'
doi: 10.1007/978-981-96-5290-7_9
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/978-981-96-5290-7_9
oa: '1'
page: 157-177
place: Singapore
project:
- _id: '109'
name: 'TRR 318: Erklärbarkeit konstruieren'
- _id: '370'
name: 'TRR 318; TP B06: Ethik und Normativität der erklärbaren KI'
publication: Social Explainable AI
publication_identifier:
isbn:
- '9789819652891'
- '9789819652907'
publication_status: published
publisher: Springer Nature Singapore
status: public
title: Responsibilities in sXAI
type: book_chapter
user_id: '93637'
year: '2026'
...
---
_id: '65063'
abstract:
- lang: eng
text: "Abstract\r\n \r\n This
chapter critically examines how social explainable AI (sXAI) can better support
AI practitioners in ensuring fairness in AI-based decision-making. We argue for
a fundamental shift: Fairness should be understood not as a technical property
or an information problem, but as a matter of vulnerability—focusing on the real-world
impacts of AI on individuals and groups, especially those most at risk. Hereby,
we call for a shift in perspective: from fair AI to\r\n tasking
AI fairly\r\n . To motivate our vulnerability
approach, we review the “Dutch welfare fraud scandal” (system risk indication—SyRI)
and current challenges in the field of fair AI/machine learning (ML). Vulnerability
of a person or members of a definable group of persons is a complex relational
notion, and not a technical property of a technical system. Accordingly, we suggest
several nontechnical strategies that hold the promise to compensate for the insufficiency
of purely technical approaches to fairness and other ethical issues in the practical
use of AI-based systems. To discuss how sXAI, due to its interactive and adaptive
social character, might better fulfill this role than current XAI techniques,
we provide a toy scenario for how sXAI might support the virtuous AI practitioner
in an ethical inquiry. Finally, we also address challenges and limits of our approach.\r\n
\ "
author:
- first_name: Suzana
full_name: Alpsancar, Suzana
id: '93637'
last_name: Alpsancar
- first_name: Eugenia
full_name: Stamboliev, Eugenia
last_name: Stamboliev
citation:
ama: 'Alpsancar S, Stamboliev E. Tasking AI Fairly. How to Empower AI Practitioners
With sXAI? In: Social Explainable AI. Springer Nature Singapore; 2026:557-581.
doi:10.1007/978-981-96-5290-7_29'
apa: Alpsancar, S., & Stamboliev, E. (2026). Tasking AI Fairly. How to Empower
AI Practitioners With sXAI? In Social Explainable AI (pp. 557–581). Springer
Nature Singapore. https://doi.org/10.1007/978-981-96-5290-7_29
bibtex: '@inbook{Alpsancar_Stamboliev_2026, place={Singapore}, title={Tasking AI
Fairly. How to Empower AI Practitioners With sXAI?}, DOI={10.1007/978-981-96-5290-7_29},
booktitle={Social Explainable AI}, publisher={Springer Nature Singapore}, author={Alpsancar,
Suzana and Stamboliev, Eugenia}, year={2026}, pages={557–581} }'
chicago: 'Alpsancar, Suzana, and Eugenia Stamboliev. “Tasking AI Fairly. How to
Empower AI Practitioners With SXAI?” In Social Explainable AI, 557–81.
Singapore: Springer Nature Singapore, 2026. https://doi.org/10.1007/978-981-96-5290-7_29.'
ieee: 'S. Alpsancar and E. Stamboliev, “Tasking AI Fairly. How to Empower AI Practitioners
With sXAI?,” in Social Explainable AI, Singapore: Springer Nature Singapore,
2026, pp. 557–581.'
mla: Alpsancar, Suzana, and Eugenia Stamboliev. “Tasking AI Fairly. How to Empower
AI Practitioners With SXAI?” Social Explainable AI, Springer Nature Singapore,
2026, pp. 557–81, doi:10.1007/978-981-96-5290-7_29.
short: 'S. Alpsancar, E. Stamboliev, in: Social Explainable AI, Springer Nature
Singapore, Singapore, 2026, pp. 557–581.'
date_created: 2026-03-19T11:03:30Z
date_updated: 2026-03-19T11:53:42Z
department:
- _id: '26'
- _id: '756'
doi: 10.1007/978-981-96-5290-7_29
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/978-981-96-5290-7_29
oa: '1'
page: 557-581
place: Singapore
project:
- _id: '370'
name: 'TRR 318; TP B06: Ethik und Normativität der erklärbaren KI'
publication: Social Explainable AI
publication_identifier:
isbn:
- '9789819652891'
- '9789819652907'
publication_status: published
publisher: Springer Nature Singapore
status: public
title: Tasking AI Fairly. How to Empower AI Practitioners With sXAI?
type: book_chapter
user_id: '93637'
year: '2026'
...
---
_id: '65064'
abstract:
- lang: eng
text: "Abstract\r\n XAI can minimize
the risks of being manipulated and deceived by AI but in turn entails other specific
risks. This also applies to sXAI, and the specifically social character of sXAI
harbors particular risks that designers and developers should be aware of. In
this chapter, we shall discuss the potential opportunities and risks of sXAI.
We see a particularly positive potential in the social character of sXAI, which
lies in the fact that skillful users, including those with “healthy distrust,”
can use the adaptivity of sXAI to produce an explanation that is actually relevant
and adequate for them. However, this requires a high level of skills on the part
of the user and is thus in contrast to the general promise of efficiency in the
use of AI. A potential risk of XAI is that it can be (even more) persuasive, as
the interactive involvement and the anthropomorphism strengthen a trustworthy
appearance/performance (independent of the adequacy of the sXAI performance)."
author:
- first_name: Suzana
full_name: Alpsancar, Suzana
id: '93637'
last_name: Alpsancar
- first_name: Michael
full_name: Klenk, Michael
last_name: Klenk
citation:
ama: 'Alpsancar S, Klenk M. The Risk of Manipulation and Deception in sXAI. In:
Social Explainable AI. Springer Nature Singapore; 2026:583-616. doi:10.1007/978-981-96-5290-7_30'
apa: Alpsancar, S., & Klenk, M. (2026). The Risk of Manipulation and Deception
in sXAI. In Social Explainable AI (pp. 583–616). Springer Nature Singapore.
https://doi.org/10.1007/978-981-96-5290-7_30
bibtex: '@inbook{Alpsancar_Klenk_2026, place={Singapore}, title={The Risk of Manipulation
and Deception in sXAI}, DOI={10.1007/978-981-96-5290-7_30},
booktitle={Social Explainable AI}, publisher={Springer Nature Singapore}, author={Alpsancar,
Suzana and Klenk, Michael}, year={2026}, pages={583–616} }'
chicago: 'Alpsancar, Suzana, and Michael Klenk. “The Risk of Manipulation and Deception
in SXAI.” In Social Explainable AI, 583–616. Singapore: Springer Nature
Singapore, 2026. https://doi.org/10.1007/978-981-96-5290-7_30.'
ieee: 'S. Alpsancar and M. Klenk, “The Risk of Manipulation and Deception in sXAI,”
in Social Explainable AI, Singapore: Springer Nature Singapore, 2026, pp.
583–616.'
mla: Alpsancar, Suzana, and Michael Klenk. “The Risk of Manipulation and Deception
in SXAI.” Social Explainable AI, Springer Nature Singapore, 2026, pp. 583–616,
doi:10.1007/978-981-96-5290-7_30.
short: 'S. Alpsancar, M. Klenk, in: Social Explainable AI, Springer Nature Singapore,
Singapore, 2026, pp. 583–616.'
date_created: 2026-03-19T11:05:30Z
date_updated: 2026-03-19T11:52:00Z
department:
- _id: '26'
- _id: '756'
doi: 10.1007/978-981-96-5290-7_30
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.1007/978-981-96-5290-7_30'
oa: '1'
page: 583-616
place: Singapore
project:
- _id: '109'
name: 'TRR 318: Erklärbarkeit konstruieren'
- _id: '370'
name: 'TRR 318; TP B06: Ethik und Normativität der erklärbaren KI'
publication: Social Explainable AI
publication_identifier:
isbn:
- '9789819652891'
- '9789819652907'
publication_status: published
publisher: Springer Nature Singapore
status: public
title: The Risk of Manipulation and Deception in sXAI
type: book_chapter
user_id: '93637'
year: '2026'
...
---
_id: '62709'
author:
- first_name: Wessel
full_name: Reijers, Wessel
id: '102524'
last_name: Reijers
orcid: 0000-0003-2505-1587
- first_name: Suzana
full_name: Alpsancar, Suzana
id: '93637'
last_name: Alpsancar
citation:
ama: 'Reijers W, Alpsancar S. Values and Norms in sXAI. In: Rohlfing K, Främling
K, Lim B, Alpsancar S, Thommes K, eds. Social Explainable AI. Communications
of NII Shonan Meetings. Springer; 2026:179-195.'
apa: Reijers, W., & Alpsancar, S. (2026). Values and Norms in sXAI. In K. Rohlfing,
K. Främling, B. Lim, S. Alpsancar, & K. Thommes (Eds.), Social explainable
AI. Communications of NII Shonan Meetings (pp. 179–195). Springer.
bibtex: '@inbook{Reijers_Alpsancar_2026, place={Singapore}, title={Values and Norms
in sXAI}, booktitle={Social explainable AI. Communications of NII Shonan Meetings},
publisher={Springer}, author={Reijers, Wessel and Alpsancar, Suzana}, editor={Rohlfing,
Katharina and Främling, Kary and Lim, Brian and Alpsancar, Suzana and Thommes,
Kirsten}, year={2026}, pages={179–195} }'
chicago: 'Reijers, Wessel, and Suzana Alpsancar. “Values and Norms in SXAI.” In
Social Explainable AI. Communications of NII Shonan Meetings, edited by
Katharina Rohlfing, Kary Främling, Brian Lim, Suzana Alpsancar, and Kirsten Thommes,
179–95. Singapore: Springer, 2026.'
ieee: 'W. Reijers and S. Alpsancar, “Values and Norms in sXAI,” in Social explainable
AI. Communications of NII Shonan Meetings, K. Rohlfing, K. Främling, B. Lim,
S. Alpsancar, and K. Thommes, Eds. Singapore: Springer, 2026, pp. 179–195.'
mla: Reijers, Wessel, and Suzana Alpsancar. “Values and Norms in SXAI.” Social
Explainable AI. Communications of NII Shonan Meetings, edited by Katharina
Rohlfing et al., Springer, 2026, pp. 179–95.
short: 'W. Reijers, S. Alpsancar, in: K. Rohlfing, K. Främling, B. Lim, S. Alpsancar,
K. Thommes (Eds.), Social Explainable AI. Communications of NII Shonan Meetings,
Springer, Singapore, 2026, pp. 179–195.'
date_created: 2025-11-30T07:54:44Z
date_updated: 2026-03-19T10:58:47Z
department:
- _id: '26'
- _id: '756'
editor:
- first_name: Katharina
full_name: Rohlfing, Katharina
last_name: Rohlfing
- first_name: Kary
full_name: Främling, Kary
last_name: Främling
- first_name: Brian
full_name: Lim, Brian
last_name: Lim
- first_name: Suzana
full_name: Alpsancar, Suzana
last_name: Alpsancar
- first_name: Kirsten
full_name: Thommes, Kirsten
last_name: Thommes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/978-981-96-5290-7_10
oa: '1'
page: 179-195
place: Singapore
publication: Social explainable AI. Communications of NII Shonan Meetings
publication_status: published
publisher: Springer
quality_controlled: '1'
related_material:
link:
- relation: confirmation
url: https://link.springer.com/book/9789819652891
status: public
title: Values and Norms in sXAI
type: book_chapter
user_id: '93637'
year: '2026'
...
---
_id: '65065'
abstract:
- lang: eng
text: "Abstract\r\n This introduction
sets the stage for the present book. Whereas research in eXplainable AI (XAI)
is motivated by societal changes and values, technology development largely ignores
social aspects. This book aims to address this research gap with a systematic
and comprehensive social view on explainable AI. Besides introducing many relevant
concepts, the book offers first access to their possible implementation, thus
advancing the development of more social XAI. The introduction starts by connecting
the topic to the general research field of XAI. The second part defines the novel
approach of social eXplainable AI (sXAI) along the three characteristics of social
interaction such as patternedness, incrementality, and multimodality. Finally,
the third part explains the structure followed by each chapter. The book offers
insights not only for readers who work on technology development but also for
those working in sociotechnical fields. Addressing an interdisciplinary readership,
the book is an invitation for more exchange and further development of the sXAI
field."
citation:
ama: Rohlfing KJ, Främling K, Lim B, Alpsancar S, Thommes K, eds. Social Explainable
AI. Springer Nature Singapore; 2026. doi:10.1007/978-981-96-5290-7_1
apa: Rohlfing, K. J., Främling, K., Lim, B., Alpsancar, S., & Thommes, K. (Eds.).
(2026). Social Explainable AI. Springer Nature Singapore. https://doi.org/10.1007/978-981-96-5290-7_1
bibtex: '@book{Rohlfing_Främling_Lim_Alpsancar_Thommes_2026, place={Singapore},
title={Social Explainable AI}, DOI={10.1007/978-981-96-5290-7_1},
publisher={Springer Nature Singapore}, year={2026} }'
chicago: 'Rohlfing, Katharina J., Kary Främling, Brian Lim, Suzana Alpsancar, and
Kirsten Thommes, eds. Social Explainable AI. Singapore: Springer Nature
Singapore, 2026. https://doi.org/10.1007/978-981-96-5290-7_1.'
ieee: 'K. J. Rohlfing, K. Främling, B. Lim, S. Alpsancar, and K. Thommes, Eds.,
Social Explainable AI. Singapore: Springer Nature Singapore, 2026.'
mla: Rohlfing, Katharina J., et al., editors. Social Explainable AI. Springer
Nature Singapore, 2026, doi:10.1007/978-981-96-5290-7_1.
short: K.J. Rohlfing, K. Främling, B. Lim, S. Alpsancar, K. Thommes, eds., Social
Explainable AI, Springer Nature Singapore, Singapore, 2026.
date_created: 2026-03-19T11:55:17Z
date_updated: 2026-03-19T11:59:42Z
department:
- _id: '26'
- _id: '756'
doi: 10.1007/978-981-96-5290-7_1
editor:
- first_name: Katharina J.
full_name: Rohlfing, Katharina J.
id: '50352'
last_name: Rohlfing
orcid: 0000-0002-5676-8233
- first_name: Kary
full_name: Främling, Kary
last_name: Främling
- first_name: Brian
full_name: Lim, Brian
last_name: Lim
- first_name: Suzana
full_name: Alpsancar, Suzana
id: '93637'
last_name: Alpsancar
- first_name: Kirsten
full_name: Thommes, Kirsten
id: '72497'
last_name: Thommes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/book/10.1007/978-981-96-5290-7
oa: '1'
place: Singapore
project:
- _id: '109'
name: 'TRR 318: Erklärbarkeit konstruieren'
publication_identifier:
isbn:
- '9789819652891'
- '9789819652907'
publication_status: published
publisher: Springer Nature Singapore
status: public
title: Social Explainable AI
type: book_editor
user_id: '93637'
year: '2026'
...
---
_id: '65093'
author:
- first_name: Thorsten
full_name: Marten, Thorsten
id: '338'
last_name: Marten
orcid: 0009-0001-6433-7839
- first_name: Moritz
full_name: Ostermann, Moritz
id: '44763'
last_name: Ostermann
orcid: https://orcid.org/0000-0003-1146-0443
- first_name: Jonathan
full_name: Behm, Jonathan
last_name: Behm
- first_name: Samuel
full_name: Leitenmaier, Samuel
last_name: Leitenmaier
citation:
ama: Marten T, Ostermann M, Behm J, Leitenmaier S. NeMo.bil - Individualisierter
öffentlicher Personennahverkehr - iÖV. Berufsbildung - Zeitschrift für Theorie-Praxis-Dialog.
2026;209(1):23-27. doi:10.3278/BB2601
apa: Marten, T., Ostermann, M., Behm, J., & Leitenmaier, S. (2026). NeMo.bil
- Individualisierter öffentlicher Personennahverkehr - iÖV. Berufsbildung -
Zeitschrift für Theorie-Praxis-Dialog, 209(1), 23–27. https://doi.org/10.3278/BB2601
bibtex: '@article{Marten_Ostermann_Behm_Leitenmaier_2026, title={NeMo.bil - Individualisierter
öffentlicher Personennahverkehr - iÖV}, volume={209}, DOI={10.3278/BB2601},
number={1}, journal={Berufsbildung - Zeitschrift für Theorie-Praxis-Dialog}, publisher={wbv
Publikation}, author={Marten, Thorsten and Ostermann, Moritz and Behm, Jonathan
and Leitenmaier, Samuel}, year={2026}, pages={23–27} }'
chicago: 'Marten, Thorsten, Moritz Ostermann, Jonathan Behm, and Samuel Leitenmaier.
“NeMo.bil - Individualisierter öffentlicher Personennahverkehr - iÖV.” Berufsbildung
- Zeitschrift für Theorie-Praxis-Dialog 209, no. 1 (2026): 23–27. https://doi.org/10.3278/BB2601.'
ieee: 'T. Marten, M. Ostermann, J. Behm, and S. Leitenmaier, “NeMo.bil - Individualisierter
öffentlicher Personennahverkehr - iÖV,” Berufsbildung - Zeitschrift für Theorie-Praxis-Dialog,
vol. 209, no. 1, pp. 23–27, 2026, doi: 10.3278/BB2601.'
mla: Marten, Thorsten, et al. “NeMo.bil - Individualisierter öffentlicher Personennahverkehr
- iÖV.” Berufsbildung - Zeitschrift für Theorie-Praxis-Dialog, vol. 209,
no. 1, wbv Publikation, 2026, pp. 23–27, doi:10.3278/BB2601.
short: T. Marten, M. Ostermann, J. Behm, S. Leitenmaier, Berufsbildung - Zeitschrift
für Theorie-Praxis-Dialog 209 (2026) 23–27.
date_created: 2026-03-23T10:30:19Z
date_updated: 2026-03-23T10:36:09Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.3278/BB2601
intvolume: ' 209'
issue: '1'
language:
- iso: ger
page: 23-27
publication: Berufsbildung - Zeitschrift für Theorie-Praxis-Dialog
publication_identifier:
eissn:
- '21991944'
publication_status: published
publisher: wbv Publikation
quality_controlled: '1'
status: public
title: NeMo.bil - Individualisierter öffentlicher Personennahverkehr - iÖV
type: journal_article
user_id: '338'
volume: 209
year: '2026'
...
---
_id: '65101'
abstract:
- lang: eng
text: Various methods to measure the dynamic behavior of particles require the calculation
of autocorrelation functions. For this purpose, fast multi-tau correlators have
been developed in dedicated hardware, in software, and on FPGAs. However, for
methods such as X-ray Photon Correlation Spectroscopy (XPCS), which requires to
calculate the autocorrelation function independently for hundreds of thousands
to millions of pixels from high-resolution detectors, current approaches rely
on offline processing after data acquisition. Moreover, the internal pipeline
state of so many independent correlators is far too large to keep it on-chip.
In this work, we propose a design approach on FPGAs, where pipeline contexts are
stored in off-chip HBM memory. Each compute unit iteratively loads the state for
a single pixel, processes a short time series for this pixel, and afterwards writes
back the context in a dataflow pipeline. We have implemented the required compute
kernels with Vitis HLS and analyze resulting designs on an Alveo U280 card. The
design achieves the expected performance and for the first time provides sufficient
throughput for current high-end detectors used in XPCS.
author:
- first_name: Abdul Rehman
full_name: Tareen, Abdul Rehman
id: '76938'
last_name: Tareen
- first_name: Christian
full_name: Plessl, Christian
id: '16153'
last_name: Plessl
orcid: 0000-0001-5728-9982
- first_name: Tobias
full_name: Kenter, Tobias
id: '3145'
last_name: Kenter
citation:
ama: 'Tareen AR, Plessl C, Kenter T. Fast Multi-Tau Correlators on FPGA with Context
Switching From and to High- Bandwidth Memory. In: 2025 International Conference
on Field Programmable Technology (ICFPT). IEEE; 2026. doi:10.1109/icfpt67023.2025.00027'
apa: Tareen, A. R., Plessl, C., & Kenter, T. (2026). Fast Multi-Tau Correlators
on FPGA with Context Switching From and to High- Bandwidth Memory. 2025 International
Conference on Field Programmable Technology (ICFPT). https://doi.org/10.1109/icfpt67023.2025.00027
bibtex: '@inproceedings{Tareen_Plessl_Kenter_2026, title={Fast Multi-Tau Correlators
on FPGA with Context Switching From and to High- Bandwidth Memory}, DOI={10.1109/icfpt67023.2025.00027},
booktitle={2025 International Conference on Field Programmable Technology (ICFPT)},
publisher={IEEE}, author={Tareen, Abdul Rehman and Plessl, Christian and Kenter,
Tobias}, year={2026} }'
chicago: Tareen, Abdul Rehman, Christian Plessl, and Tobias Kenter. “Fast Multi-Tau
Correlators on FPGA with Context Switching From and to High- Bandwidth Memory.”
In 2025 International Conference on Field Programmable Technology (ICFPT).
IEEE, 2026. https://doi.org/10.1109/icfpt67023.2025.00027.
ieee: 'A. R. Tareen, C. Plessl, and T. Kenter, “Fast Multi-Tau Correlators on FPGA
with Context Switching From and to High- Bandwidth Memory,” 2026, doi: 10.1109/icfpt67023.2025.00027.'
mla: Tareen, Abdul Rehman, et al. “Fast Multi-Tau Correlators on FPGA with Context
Switching From and to High- Bandwidth Memory.” 2025 International Conference
on Field Programmable Technology (ICFPT), IEEE, 2026, doi:10.1109/icfpt67023.2025.00027.
short: 'A.R. Tareen, C. Plessl, T. Kenter, in: 2025 International Conference on
Field Programmable Technology (ICFPT), IEEE, 2026.'
date_created: 2026-03-24T09:02:22Z
date_updated: 2026-03-24T09:04:31Z
department:
- _id: '27'
- _id: '518'
doi: 10.1109/icfpt67023.2025.00027
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: 2025 International Conference on Field Programmable Technology (ICFPT)
publication_status: published
publisher: IEEE
status: public
title: Fast Multi-Tau Correlators on FPGA with Context Switching From and to High-
Bandwidth Memory
type: conference
user_id: '3145'
year: '2026'
...
---
_id: '65094'
abstract:
- lang: eng
text: "\r\n The development of practical sensors for
optical coherence tomography (OCT) with undetected photons requires miniaturization
via integration. To be practical, these sensors must exhibit a large spectral
bandwidth and a high brightness, which are linked to a high axial resolution and
a sufficient signal-to-noise ratio, respectively. Here, we combine these requirements
in a scheme for OCT measurements with undetected photons based on nonlinear\r\n
\ \r\n
\ Ti\r\n :\r\n
\ \r\n \r\n Li\r\n
\ Nb\r\n O\r\n
\ \r\n 3\r\n
\ \r\n \r\n waveguides.
We investigate the performance benchmarks of the commonly used SU(1,1) scheme
in comparison to an induced-coherence scheme and find that the latter is actually
better suited when implementing measurements with undetected photons in integrated
systems. In both schemes, we perform pump-gain optimization and OCT measurements
with undetected photons with an axial resolution as low as\r\n \r\n 28\r\n
\ \r\n μ\r\n \r\n m\r\n \r\n \r\n
\ .\r\n "
article_number: '034031'
author:
- first_name: Franz
full_name: Roeder, Franz
id: '88149'
last_name: Roeder
- first_name: René
full_name: Pollmann, René
id: '78890'
last_name: Pollmann
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Roeder F, Pollmann R, Quiring V, Eigner C, Brecht B, Silberhorn C. Toward integrated
sensors for optimized optical coherence tomography with undetected photons. Physical
Review Applied. 2026;25(3). doi:10.1103/cwsx-42c4
apa: Roeder, F., Pollmann, R., Quiring, V., Eigner, C., Brecht, B., & Silberhorn,
C. (2026). Toward integrated sensors for optimized optical coherence tomography
with undetected photons. Physical Review Applied, 25(3), Article
034031. https://doi.org/10.1103/cwsx-42c4
bibtex: '@article{Roeder_Pollmann_Quiring_Eigner_Brecht_Silberhorn_2026, title={Toward
integrated sensors for optimized optical coherence tomography with undetected
photons}, volume={25}, DOI={10.1103/cwsx-42c4},
number={3034031}, journal={Physical Review Applied}, publisher={American Physical
Society (APS)}, author={Roeder, Franz and Pollmann, René and Quiring, Viktor and
Eigner, Christof and Brecht, Benjamin and Silberhorn, Christine}, year={2026}
}'
chicago: Roeder, Franz, René Pollmann, Viktor Quiring, Christof Eigner, Benjamin
Brecht, and Christine Silberhorn. “Toward Integrated Sensors for Optimized Optical
Coherence Tomography with Undetected Photons.” Physical Review Applied
25, no. 3 (2026). https://doi.org/10.1103/cwsx-42c4.
ieee: 'F. Roeder, R. Pollmann, V. Quiring, C. Eigner, B. Brecht, and C. Silberhorn,
“Toward integrated sensors for optimized optical coherence tomography with undetected
photons,” Physical Review Applied, vol. 25, no. 3, Art. no. 034031, 2026,
doi: 10.1103/cwsx-42c4.'
mla: Roeder, Franz, et al. “Toward Integrated Sensors for Optimized Optical Coherence
Tomography with Undetected Photons.” Physical Review Applied, vol. 25,
no. 3, 034031, American Physical Society (APS), 2026, doi:10.1103/cwsx-42c4.
short: F. Roeder, R. Pollmann, V. Quiring, C. Eigner, B. Brecht, C. Silberhorn,
Physical Review Applied 25 (2026).
date_created: 2026-03-23T12:28:33Z
date_updated: 2026-03-25T07:59:04Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1103/cwsx-42c4
intvolume: ' 25'
issue: '3'
language:
- iso: eng
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Toward integrated sensors for optimized optical coherence tomography with undetected
photons
type: journal_article
user_id: '27150'
volume: 25
year: '2026'
...
---
_id: '65096'
abstract:
- lang: eng
text: "\r\n Precise measurements of both the arrival
time and carrier frequency of light pulses are essential for time–frequency-encoded
quantum technologies. Quantum mechanics, however, imposes fundamental limits on
the simultaneous determination of these quantities. In this work, we derive and
experimentally verify the quantum uncertainty bounds governing joint time–frequency
measurements. We show that when detection is restricted to finite time windows,
the problem is naturally described by a quantum rotor, rendering the commonly
used Heisenberg uncertainty relation inapplicable. We further propose an optimal
detection scheme that saturates these fundamental limits. By sampling the\r\n
\ Q\r\n -function,
we demonstrate the reconstruction of the Wigner function beyond the harmonic oscillator.
Using an experimental implementation based on a quantum pulse gate, we confirm
that the proposed scheme approaches the ultimate quantum limit for simultaneous
time–frequency measurements. These results provide a framework for joint time–frequency
detection with direct implications for precision measurements and quantum information
processing.\r\n "
article_number: '548'
author:
- first_name: Patrick Fabian
full_name: Folge, Patrick Fabian
id: '88605'
last_name: Folge
- first_name: Laura Maria
full_name: Serino, Laura Maria
id: '88242'
last_name: Serino
- first_name: Ladislav
full_name: Mišta, Ladislav
last_name: Mišta
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Jaroslav
full_name: Řeháček, Jaroslav
last_name: Řeháček
- first_name: Zdeněk
full_name: Hradil, Zdeněk
last_name: Hradil
citation:
ama: Folge PF, Serino LM, Mišta L, et al. Quantum-limited detection of the arrival
time and the carrier frequency of time-dependent signals. Optica. 2026;13(3).
doi:10.1364/optica.579459
apa: Folge, P. F., Serino, L. M., Mišta, L., Brecht, B., Silberhorn, C., Řeháček,
J., & Hradil, Z. (2026). Quantum-limited detection of the arrival time and
the carrier frequency of time-dependent signals. Optica, 13(3),
Article 548. https://doi.org/10.1364/optica.579459
bibtex: '@article{Folge_Serino_Mišta_Brecht_Silberhorn_Řeháček_Hradil_2026, title={Quantum-limited
detection of the arrival time and the carrier frequency of time-dependent signals},
volume={13}, DOI={10.1364/optica.579459},
number={3548}, journal={Optica}, publisher={Optica Publishing Group}, author={Folge,
Patrick Fabian and Serino, Laura Maria and Mišta, Ladislav and Brecht, Benjamin
and Silberhorn, Christine and Řeháček, Jaroslav and Hradil, Zdeněk}, year={2026}
}'
chicago: Folge, Patrick Fabian, Laura Maria Serino, Ladislav Mišta, Benjamin Brecht,
Christine Silberhorn, Jaroslav Řeháček, and Zdeněk Hradil. “Quantum-Limited Detection
of the Arrival Time and the Carrier Frequency of Time-Dependent Signals.” Optica
13, no. 3 (2026). https://doi.org/10.1364/optica.579459.
ieee: 'P. F. Folge et al., “Quantum-limited detection of the arrival time
and the carrier frequency of time-dependent signals,” Optica, vol. 13,
no. 3, Art. no. 548, 2026, doi: 10.1364/optica.579459.'
mla: Folge, Patrick Fabian, et al. “Quantum-Limited Detection of the Arrival Time
and the Carrier Frequency of Time-Dependent Signals.” Optica, vol. 13,
no. 3, 548, Optica Publishing Group, 2026, doi:10.1364/optica.579459.
short: P.F. Folge, L.M. Serino, L. Mišta, B. Brecht, C. Silberhorn, J. Řeháček,
Z. Hradil, Optica 13 (2026).
date_created: 2026-03-23T12:30:02Z
date_updated: 2026-03-25T07:59:23Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1364/optica.579459
intvolume: ' 13'
issue: '3'
language:
- iso: eng
publication: Optica
publication_identifier:
issn:
- 2334-2536
publication_status: published
publisher: Optica Publishing Group
status: public
title: Quantum-limited detection of the arrival time and the carrier frequency of
time-dependent signals
type: journal_article
user_id: '27150'
volume: 13
year: '2026'
...
---
_id: '63451'
abstract:
- lang: eng
text: Superconducting nanowire single-photon detectors (SNSPDs) can enable
photon-number resolution (PNR) based on accurate measurements of the detector’s
response time to few-photon optical pulses. In this work, we investigate the impact
of the optical pulse shape and duration on the accuracy of this method. We find
that Gaussian temporal pulse shapes yield cleaner arrival-time histograms and,
thus, more accurate PNR, compared to bandpass-filtered pulses of equal bandwidth.
For low system jitter and an optical pulse duration comparable to the other jitter
contributions, photon numbers can be discriminated in our system with a commercial
SNSPD. At 60 ps optical pulse duration, photon-number discrimination is significantly
reduced. Furthermore, we highlight the importance of using the correct arrival-time
histogram model when analyzing photon-number assignment. Using exponentially modified
Gaussian distributions, instead of the commonly used Gaussian distributions, we
can more accurately determine photon-number misidentification probabilities. Finally,
we reconstruct the positive operator-valued measures of the detector, revealing
sharp features that indicate the intrinsic PNR capabilities.
article_number: '016102'
author:
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Isabell
full_name: Mischke, Isabell
last_name: Mischke
- first_name: Fabian
full_name: Schlue, Fabian
id: '63579'
last_name: Schlue
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Schapeler T, Mischke I, Schlue F, et al. Practical considerations for assignment
of photon numbers with SNSPDs. APL Quantum. 2026;3(1). doi:10.1063/5.0304127
apa: Schapeler, T., Mischke, I., Schlue, F., Stefszky, M., Brecht, B., Silberhorn,
C., & Bartley, T. (2026). Practical considerations for assignment of photon
numbers with SNSPDs. APL Quantum, 3(1), Article 016102. https://doi.org/10.1063/5.0304127
bibtex: '@article{Schapeler_Mischke_Schlue_Stefszky_Brecht_Silberhorn_Bartley_2026,
title={Practical considerations for assignment of photon numbers with SNSPDs},
volume={3}, DOI={10.1063/5.0304127},
number={1016102}, journal={APL Quantum}, publisher={AIP Publishing}, author={Schapeler,
Timon and Mischke, Isabell and Schlue, Fabian and Stefszky, Michael and Brecht,
Benjamin and Silberhorn, Christine and Bartley, Tim}, year={2026} }'
chicago: Schapeler, Timon, Isabell Mischke, Fabian Schlue, Michael Stefszky, Benjamin
Brecht, Christine Silberhorn, and Tim Bartley. “Practical Considerations for Assignment
of Photon Numbers with SNSPDs.” APL Quantum 3, no. 1 (2026). https://doi.org/10.1063/5.0304127.
ieee: 'T. Schapeler et al., “Practical considerations for assignment of photon
numbers with SNSPDs,” APL Quantum, vol. 3, no. 1, Art. no. 016102, 2026,
doi: 10.1063/5.0304127.'
mla: Schapeler, Timon, et al. “Practical Considerations for Assignment of Photon
Numbers with SNSPDs.” APL Quantum, vol. 3, no. 1, 016102, AIP Publishing,
2026, doi:10.1063/5.0304127.
short: T. Schapeler, I. Mischke, F. Schlue, M. Stefszky, B. Brecht, C. Silberhorn,
T. Bartley, APL Quantum 3 (2026).
date_created: 2026-01-05T10:00:58Z
date_updated: 2026-03-25T08:00:27Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1063/5.0304127
intvolume: ' 3'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '191'
name: 'PhoQuant: Photonische Quantencomputer - Quantencomputing Testplattform'
- _id: '239'
name: 'ERC-Grant: QuESADILLA: Quantum Engineering Superconducting Array Detectors
in Low-Light Applications'
publication: APL Quantum
publication_identifier:
issn:
- 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Practical considerations for assignment of photon numbers with SNSPDs
type: journal_article
user_id: '27150'
volume: 3
year: '2026'
...
---
_id: '65095'
abstract:
- lang: eng
text: "\r\n We provide experimental validation of tight
entropic uncertainty relations for the Shannon entropies of observables with mutually
unbiased eigenstates in high dimensions. In particular, we address the cases of
dimensions\r\n \r\n
\ \r\n d\r\n =\r\n
\ 3\r\n \r\n
\ \r\n , 4, and 5 and consider from
2 to\r\n \r\n
\ \r\n d\r\n +\r\n
\ 1\r\n \r\n
\ \r\n mutually unbiased bases.
The experiment is based on pulsed frequency bins measured with a multioutput quantum
pulse gate, which can perform projective measurements on a complete high-dimensional
basis in the time-frequency domain. Our results fit the theoretical predictions:
the bound on the sum of the entropies is never violated and is saturated by the
states that minimize the uncertainty relations.\r\n "
article_number: '032420'
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. Experimental
entropic uncertainty relations in dimensions three to five. Physical Review
A. 2026;113(3). doi:10.1103/f6c4-jtlc
apa: Serino, L. M., Chesi, G., Brecht, B., Maccone, L., Macchiavello, C., &
Silberhorn, C. (2026). Experimental entropic uncertainty relations in dimensions
three to five. Physical Review A, 113(3), Article 032420. https://doi.org/10.1103/f6c4-jtlc
bibtex: '@article{Serino_Chesi_Brecht_Maccone_Macchiavello_Silberhorn_2026, title={Experimental
entropic uncertainty relations in dimensions three to five}, volume={113}, DOI={10.1103/f6c4-jtlc}, number={3032420},
journal={Physical Review A}, 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={2026} }'
chicago: Serino, Laura Maria, Giovanni Chesi, Benjamin Brecht, Lorenzo Maccone,
Chiara Macchiavello, and Christine Silberhorn. “Experimental Entropic Uncertainty
Relations in Dimensions Three to Five.” Physical Review A 113, no. 3 (2026).
https://doi.org/10.1103/f6c4-jtlc.
ieee: 'L. M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, and C. Silberhorn,
“Experimental entropic uncertainty relations in dimensions three to five,” Physical
Review A, vol. 113, no. 3, Art. no. 032420, 2026, doi: 10.1103/f6c4-jtlc.'
mla: Serino, Laura Maria, et al. “Experimental Entropic Uncertainty Relations in
Dimensions Three to Five.” Physical Review A, vol. 113, no. 3, 032420,
American Physical Society (APS), 2026, doi:10.1103/f6c4-jtlc.
short: L.M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, C. Silberhorn,
Physical Review A 113 (2026).
date_created: 2026-03-23T12:29:23Z
date_updated: 2026-03-25T07:59:36Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1103/f6c4-jtlc
intvolume: ' 113'
issue: '3'
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: Experimental entropic uncertainty relations in dimensions three to five
type: journal_article
user_id: '27150'
volume: 113
year: '2026'
...
---
_id: '65266'
abstract:
- lang: eng
text: "ABSTRACT\r\n This work
is concerned with the modeling of a cold‐box sand, a composition of sand grains
and a resin binder. To this end, experiments are performed, which show the following
characteristics: localization phenomena in the form of a shear band, softening
behavior in the force‐displacement curve, and asymmetric behavior for compression
and tension. To model this complex material behavior, a micromorphic continuum
is used. In the present contribution, we focus on the linear‐elastic regime and
demonstrate the identifiability of micromorphic material parameters under deliberately
induced inhomogeneous deformation states. In addition to the degrees of freedom
of a classical continuum, the micromorphic model has additional degrees of freedom,
introduced here in a phenomenological sense to represent kinematically enriched
deformation modes associated with the granular microstructure. Accordingly, the
micromorphic fields are not interpreted as a separate physical scale (e.g., “binder”
vs. “grains”), but as an effective continuum description at the specimen scale.
This contribution addresses parameter identification for a micromorphic model
of cold‐box sand, with a clear separation between homogeneous deformation states
governing classical elastic parameters and inhomogeneous states required to activate
and identify micromorphic length‐scale parameters. The main challenge lies in
identifying the micro material parameters. To determine these, the corresponding
gradient terms in the constitutive formulation must be triggered via properly
tuned experiments. Micro‐parameter identification is demonstrated using synthetic
data generated from a boundary‐value problem with inhomogeneous displacement fields.
The chosen benchmark enables controlled activation of gradient terms and thereby
renders optimization‐based identification of micromorphic parameters feasible.
The synthetic example is deliberately chosen to assess feasibility and identifiability
under controlled conditions, thereby isolating micromorphic identifiability aspects
from experimental uncertainties. The novelty of the contribution lies in explicitly
linking micromorphic parameter identifiability to kinematic inhomogeneity, and
in demonstrating this link within a tractable forward– inverse setting for a linear‐elastic
micromorphic continuum."
article_number: e70093
author:
- first_name: Alexander
full_name: Börger, Alexander
id: '52037'
last_name: Börger
- first_name: Rolf
full_name: Mahnken, Rolf
last_name: Mahnken
- first_name: Ismail
full_name: Caylak, Ismail
id: '75'
last_name: Caylak
- first_name: Richard
full_name: Ostwald, Richard
id: '106876'
last_name: Ostwald
orcid: 0000-0003-2147-8444
citation:
ama: Börger A, Mahnken R, Caylak I, Ostwald R. Aspects of Parameter Identification
for a Micromorphic Continuum applied to a Cold‐Box Sand. Proceedings in Applied
Mathematics and Mechanics. 2026;26(2). doi:10.1002/pamm.70093
apa: Börger, A., Mahnken, R., Caylak, I., & Ostwald, R. (2026). Aspects of Parameter
Identification for a Micromorphic Continuum applied to a Cold‐Box Sand. Proceedings
in Applied Mathematics and Mechanics, 26(2), Article e70093. https://doi.org/10.1002/pamm.70093
bibtex: '@article{Börger_Mahnken_Caylak_Ostwald_2026, title={Aspects of Parameter
Identification for a Micromorphic Continuum applied to a Cold‐Box Sand}, volume={26},
DOI={10.1002/pamm.70093}, number={2e70093},
journal={Proceedings in Applied Mathematics and Mechanics}, publisher={Wiley},
author={Börger, Alexander and Mahnken, Rolf and Caylak, Ismail and Ostwald, Richard},
year={2026} }'
chicago: Börger, Alexander, Rolf Mahnken, Ismail Caylak, and Richard Ostwald. “Aspects
of Parameter Identification for a Micromorphic Continuum Applied to a Cold‐Box
Sand.” Proceedings in Applied Mathematics and Mechanics 26, no. 2 (2026).
https://doi.org/10.1002/pamm.70093.
ieee: 'A. Börger, R. Mahnken, I. Caylak, and R. Ostwald, “Aspects of Parameter Identification
for a Micromorphic Continuum applied to a Cold‐Box Sand,” Proceedings in Applied
Mathematics and Mechanics, vol. 26, no. 2, Art. no. e70093, 2026, doi: 10.1002/pamm.70093.'
mla: Börger, Alexander, et al. “Aspects of Parameter Identification for a Micromorphic
Continuum Applied to a Cold‐Box Sand.” Proceedings in Applied Mathematics and
Mechanics, vol. 26, no. 2, e70093, Wiley, 2026, doi:10.1002/pamm.70093.
short: A. Börger, R. Mahnken, I. Caylak, R. Ostwald, Proceedings in Applied Mathematics
and Mechanics 26 (2026).
date_created: 2026-04-01T04:52:34Z
date_updated: 2026-04-01T04:54:17Z
department:
- _id: '9'
- _id: '952'
- _id: '321'
doi: 10.1002/pamm.70093
intvolume: ' 26'
issue: '2'
language:
- iso: eng
publication: Proceedings in Applied Mathematics and Mechanics
publication_identifier:
issn:
- 1617-7061
- 1617-7061
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Aspects of Parameter Identification for a Micromorphic Continuum applied to
a Cold‐Box Sand
type: journal_article
user_id: '85414'
volume: 26
year: '2026'
...
---
_id: '65357'
author:
- first_name: Minjun
full_name: Kim, Minjun
last_name: Kim
- first_name: Vasanthan
full_name: Devaraj, Vasanthan
last_name: Devaraj
- first_name: Hyeon-Seok
full_name: Seo, Hyeon-Seok
last_name: Seo
- first_name: Seongjae
full_name: Eom, Seongjae
last_name: Eom
- first_name: Jeong-Su
full_name: Lee, Jeong-Su
last_name: Lee
- first_name: Donghan
full_name: Lee, Donghan
last_name: Lee
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Jong-Min
full_name: Lee, Jong-Min
last_name: Lee
- first_name: Min Yong
full_name: Jeon, Min Yong
last_name: Jeon
citation:
ama: 'Kim M, Devaraj V, Seo H-S, et al. Fabrication of uniform, high-field-enhanced
plasmonic satellite clusters using multidewetting. In: Razeghi M, Khodaparast
GA, Vitiello MS, eds. Quantum Sensing and Nano Electronics and Photonics XXII.
SPIE; 2026. doi:10.1117/12.3095416'
apa: Kim, M., Devaraj, V., Seo, H.-S., Eom, S., Lee, J.-S., Lee, D., Zentgraf, T.,
Lee, J.-M., & Jeon, M. Y. (2026). Fabrication of uniform, high-field-enhanced
plasmonic satellite clusters using multidewetting. In M. Razeghi, G. A. Khodaparast,
& M. S. Vitiello (Eds.), Quantum Sensing and Nano Electronics and Photonics
XXII. SPIE. https://doi.org/10.1117/12.3095416
bibtex: '@inproceedings{Kim_Devaraj_Seo_Eom_Lee_Lee_Zentgraf_Lee_Jeon_2026, title={Fabrication
of uniform, high-field-enhanced plasmonic satellite clusters using multidewetting},
DOI={10.1117/12.3095416}, booktitle={Quantum
Sensing and Nano Electronics and Photonics XXII}, publisher={SPIE}, author={Kim,
Minjun and Devaraj, Vasanthan and Seo, Hyeon-Seok and Eom, Seongjae and Lee, Jeong-Su
and Lee, Donghan and Zentgraf, Thomas and Lee, Jong-Min and Jeon, Min Yong}, editor={Razeghi,
Manijeh and Khodaparast, Giti A. and Vitiello, Miriam S.}, year={2026} }'
chicago: Kim, Minjun, Vasanthan Devaraj, Hyeon-Seok Seo, Seongjae Eom, Jeong-Su
Lee, Donghan Lee, Thomas Zentgraf, Jong-Min Lee, and Min Yong Jeon. “Fabrication
of Uniform, High-Field-Enhanced Plasmonic Satellite Clusters Using Multidewetting.”
In Quantum Sensing and Nano Electronics and Photonics XXII, edited by Manijeh
Razeghi, Giti A. Khodaparast, and Miriam S. Vitiello. SPIE, 2026. https://doi.org/10.1117/12.3095416.
ieee: 'M. Kim et al., “Fabrication of uniform, high-field-enhanced plasmonic
satellite clusters using multidewetting,” in Quantum Sensing and Nano Electronics
and Photonics XXII, 2026, doi: 10.1117/12.3095416.'
mla: Kim, Minjun, et al. “Fabrication of Uniform, High-Field-Enhanced Plasmonic
Satellite Clusters Using Multidewetting.” Quantum Sensing and Nano Electronics
and Photonics XXII, edited by Manijeh Razeghi et al., SPIE, 2026, doi:10.1117/12.3095416.
short: 'M. Kim, V. Devaraj, H.-S. Seo, S. Eom, J.-S. Lee, D. Lee, T. Zentgraf, J.-M.
Lee, M.Y. Jeon, in: M. Razeghi, G.A. Khodaparast, M.S. Vitiello (Eds.), Quantum
Sensing and Nano Electronics and Photonics XXII, SPIE, 2026.'
date_created: 2026-04-07T04:29:28Z
date_updated: 2026-04-07T04:30:07Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1117/12.3095416
editor:
- first_name: Manijeh
full_name: Razeghi, Manijeh
last_name: Razeghi
- first_name: Giti A.
full_name: Khodaparast, Giti A.
last_name: Khodaparast
- first_name: Miriam S.
full_name: Vitiello, Miriam S.
last_name: Vitiello
language:
- iso: eng
publication: Quantum Sensing and Nano Electronics and Photonics XXII
publication_status: published
publisher: SPIE
status: public
title: Fabrication of uniform, high-field-enhanced plasmonic satellite clusters using
multidewetting
type: conference
user_id: '30525'
year: '2026'
...
---
_id: '65460'
abstract:
- lang: eng
text: "Beamsplitters represent fundamental components in both classical and quantum
optical systems, enabling the distribution of light, as well as the generation
of interference, superposition, and entanglement. However, optical networks constructed
from conventional bulk 2 × 2-beamsplitters encounter inherent scalability issues,
as the number of required beamsplitters scales quadratically with the number of
optical modes for a fully connected network. Metasurfaces offer a promising route
to\r\novercome these constraints. By manipulating light at the wavelength scale,
compact optical components with advanced functionalities can be constructed, which
address several modes simultaneously. In this work, we design and experimentally
utilize a metasurface as a multiport beamsplitter. Furthermore, we realized a
multimode interferometer composed of two cascaded metasurfaces. We characterize
the individual and cascaded metasurfaces by using classical light, showing controllable
splitting ratios through tunable phase relations. We then expand the approach
to quantum light, employing single photons to demonstrate second- and third-order
photon correlations as well as single photon interference across multiple spatial
paths. These results establish metasurface-based multiport beamsplitters as a
scalable and reconfigurable platform bridging classical and quantum photonics. "
article_number: acsphotonics.6c00096
article_type: original
author:
- first_name: Rebecca
full_name: Aschwanden, Rebecca
last_name: Aschwanden
- first_name: Nicolás
full_name: Claro-Rodríguez, Nicolás
last_name: Claro-Rodríguez
- first_name: Ruizhe
full_name: Zhao, Ruizhe
last_name: Zhao
- first_name: Patricia Anna Maria
full_name: Kallert, Patricia Anna Maria
id: '72332'
last_name: Kallert
orcid: 0009-0007-5230-0223
- first_name: Tobias
full_name: Krieger, Tobias
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: Sandra
full_name: Stroj, Sandra
last_name: Stroj
- first_name: Michele
full_name: Rota, Michele
last_name: Rota
- first_name: Sven
full_name: Höfling, Sven
last_name: Höfling
- first_name: Tobias
full_name: Huber-Loyola, Tobias
last_name: Huber-Loyola
- first_name: Armando
full_name: Rastelli, Armando
last_name: Rastelli
- first_name: Rinaldo
full_name: Trotta, Rinaldo
last_name: Trotta
- first_name: Lingling
full_name: Huang, Lingling
last_name: Huang
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Aschwanden R, Claro-Rodríguez N, Zhao R, et al. Cascaded Metasurface Interferometer
for Multipath Interference with Classical and Quantum Light. ACS Photonics.
Published online 2026. doi:10.1021/acsphotonics.6c00096
apa: Aschwanden, R., Claro-Rodríguez, N., Zhao, R., Kallert, P. A. M., Krieger,
T., Buchinger, Q., Covre da Silva, S. F., Stroj, S., Rota, M., Höfling, S., Huber-Loyola,
T., Rastelli, A., Trotta, R., Huang, L., Bartley, T., Jöns, K., & Zentgraf,
T. (2026). Cascaded Metasurface Interferometer for Multipath Interference with
Classical and Quantum Light. ACS Photonics, Article acsphotonics.6c00096.
https://doi.org/10.1021/acsphotonics.6c00096
bibtex: '@article{Aschwanden_Claro-Rodríguez_Zhao_Kallert_Krieger_Buchinger_Covre
da Silva_Stroj_Rota_Höfling_et al._2026, title={Cascaded Metasurface Interferometer
for Multipath Interference with Classical and Quantum Light}, DOI={10.1021/acsphotonics.6c00096},
number={acsphotonics.6c00096}, journal={ACS Photonics}, publisher={American Chemical
Society (ACS)}, author={Aschwanden, Rebecca and Claro-Rodríguez, Nicolás and Zhao,
Ruizhe and Kallert, Patricia Anna Maria and Krieger, Tobias and Buchinger, Quirin
and Covre da Silva, Saimon F. and Stroj, Sandra and Rota, Michele and Höfling,
Sven and et al.}, year={2026} }'
chicago: Aschwanden, Rebecca, Nicolás Claro-Rodríguez, Ruizhe Zhao, Patricia Anna
Maria Kallert, Tobias Krieger, Quirin Buchinger, Saimon F. Covre da Silva, et
al. “Cascaded Metasurface Interferometer for Multipath Interference with Classical
and Quantum Light.” ACS Photonics, 2026. https://doi.org/10.1021/acsphotonics.6c00096.
ieee: 'R. Aschwanden et al., “Cascaded Metasurface Interferometer for Multipath
Interference with Classical and Quantum Light,” ACS Photonics, Art. no.
acsphotonics.6c00096, 2026, doi: 10.1021/acsphotonics.6c00096.'
mla: Aschwanden, Rebecca, et al. “Cascaded Metasurface Interferometer for Multipath
Interference with Classical and Quantum Light.” ACS Photonics, acsphotonics.6c00096,
American Chemical Society (ACS), 2026, doi:10.1021/acsphotonics.6c00096.
short: R. Aschwanden, N. Claro-Rodríguez, R. Zhao, P.A.M. Kallert, T. Krieger, Q.
Buchinger, S.F. Covre da Silva, S. Stroj, M. Rota, S. Höfling, T. Huber-Loyola,
A. Rastelli, R. Trotta, L. Huang, T. Bartley, K. Jöns, T. Zentgraf, ACS Photonics
(2026).
date_created: 2026-04-20T04:52:59Z
date_updated: 2026-04-20T05:01:00Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acsphotonics.6c00096
external_id:
arxiv:
- '2603.25090'
keyword:
- metasurface
- beamsplitter
- interferometer
- quantum network
- single photons
- nanophotonics
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/10.1021/acsphotonics.6c00096
project:
- _id: '54'
name: TRR 142 - Project Area A
- _id: '65'
name: 'TRR 142; TP A08: Nichtlineare Kopplung von Zwischenschicht-Exzitonen in van
der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: ACS Photonics
publication_identifier:
issn:
- 2330-4022
- 2330-4022
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Cascaded Metasurface Interferometer for Multipath Interference with Classical
and Quantum Light
type: journal_article
user_id: '30525'
year: '2026'
...
---
_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.
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. 2026;13:2128-2133. 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, 13, 2128–2133. 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}, volume={13},
DOI={10.1021/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}, pages={2128–2133} }'
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 13 (2026): 2128–33. 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, vol. 13, pp. 2128–2133, 2026, doi: 10.1021/acsphotonics.5c02865.'
mla: Wetter, Helene, et al. “Polarization- and Wave-Vector Selective Optical Metasurface
with Near-Field Coupling.” ACS Photonics, vol. 13, American Chemical Society
(ACS), 2026, pp. 2128–33, doi:10.1021/acsphotonics.5c02865.
short: H. Wetter, J. Wingenbach, F. Rehberg, W. Gao, S. Schumacher, T. Zentgraf,
ACS Photonics 13 (2026) 2128–2133.
date_created: 2026-04-02T07:25:30Z
date_updated: 2026-04-20T05:09:57Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acsphotonics.5c02865
external_id:
arxiv:
- '2512.14452'
intvolume: ' 13'
keyword:
- metasurface
- waveguides
- Dirac point
- polarization
- negative coupling
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/10.1021/acsphotonics.5c02865
page: 2128-2133
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'
volume: 13
year: '2026'
...
---
_id: '65458'
author:
- first_name: Ayoub
full_name: Hamdoun, Ayoub
id: '57708'
last_name: Hamdoun
- first_name: Rolf
full_name: Mahnken, Rolf
id: '335'
last_name: Mahnken
- first_name: Richard
full_name: Ostwald, Richard
id: '106876'
last_name: Ostwald
orcid: 0000-0003-2147-8444
citation:
ama: 'Hamdoun A, Mahnken R, Ostwald R. A gradient-damage model for amorphous glassy
polymers: Consistent formulation of viscoplasticity and damage evolution in a
micromorphic framework. European Journal of Mechanics / A Solids. Published
online 2026. doi:https://doi.org/10.1016/j.euromechsol.2026.106137'
apa: 'Hamdoun, A., Mahnken, R., & Ostwald, R. (2026). A gradient-damage model
for amorphous glassy polymers: Consistent formulation of viscoplasticity and damage
evolution in a micromorphic framework. European Journal of Mechanics / A Solids.
https://doi.org/10.1016/j.euromechsol.2026.106137'
bibtex: '@article{Hamdoun_Mahnken_Ostwald_2026, title={A gradient-damage model for
amorphous glassy polymers: Consistent formulation of viscoplasticity and damage
evolution in a micromorphic framework}, DOI={https://doi.org/10.1016/j.euromechsol.2026.106137},
journal={European Journal of Mechanics / A Solids}, author={Hamdoun, Ayoub and
Mahnken, Rolf and Ostwald, Richard}, year={2026} }'
chicago: 'Hamdoun, Ayoub, Rolf Mahnken, and Richard Ostwald. “A Gradient-Damage
Model for Amorphous Glassy Polymers: Consistent Formulation of Viscoplasticity
and Damage Evolution in a Micromorphic Framework.” European Journal of Mechanics
/ A Solids, 2026. https://doi.org/10.1016/j.euromechsol.2026.106137.'
ieee: 'A. Hamdoun, R. Mahnken, and R. Ostwald, “A gradient-damage model for amorphous
glassy polymers: Consistent formulation of viscoplasticity and damage evolution
in a micromorphic framework,” European Journal of Mechanics / A Solids,
2026, doi: https://doi.org/10.1016/j.euromechsol.2026.106137.'
mla: 'Hamdoun, Ayoub, et al. “A Gradient-Damage Model for Amorphous Glassy Polymers:
Consistent Formulation of Viscoplasticity and Damage Evolution in a Micromorphic
Framework.” European Journal of Mechanics / A Solids, 2026, doi:https://doi.org/10.1016/j.euromechsol.2026.106137.'
short: A. Hamdoun, R. Mahnken, R. Ostwald, European Journal of Mechanics / A Solids
(2026).
date_created: 2026-04-18T07:19:21Z
date_updated: 2026-04-20T11:28:43Z
ddc:
- '620'
department:
- _id: '9'
- _id: '952'
- _id: '321'
doi: https://doi.org/10.1016/j.euromechsol.2026.106137
file:
- access_level: open_access
content_type: application/pdf
creator: ahamdoun
date_created: 2026-04-18T07:19:12Z
date_updated: 2026-04-18T07:19:12Z
file_id: '65459'
file_name: 1-s2.0-S0997753826001233-main.pdf
file_size: 3153415
relation: main_file
file_date_updated: 2026-04-18T07:19:12Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: European Journal of Mechanics / A Solids
status: public
title: 'A gradient-damage model for amorphous glassy polymers: Consistent formulation
of viscoplasticity and damage evolution in a micromorphic framework'
type: journal_article
user_id: '57708'
year: '2026'
...
---
_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. In: SIAM Symposium on Simplicity in
Algorithms (SOSA). ; :247-253.'
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. SIAM
Symposium on Simplicity in Algorithms (SOSA), 247–253.
bibtex: '@inproceedings{Buhrman_Gharibian_Landau_Gall_Schuch_Tamaki, title={A Simpler
Exponential-Time Approximation Algorithm for MAX-k-SAT}, booktitle={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},
pages={247–253} }'
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.” In SIAM Symposium on Simplicity in Algorithms (SOSA), 247–53,
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,” in SIAM
Symposium on Simplicity in Algorithms (SOSA), pp. 247–253.
mla: Buhrman, Harry, et al. “A Simpler Exponential-Time Approximation Algorithm
for MAX-k-SAT.” SIAM Symposium on Simplicity in Algorithms (SOSA), pp.
247–53.
short: 'H. Buhrman, S. Gharibian, Z. Landau, F.L. Gall, N. Schuch, S. Tamaki, in:
SIAM Symposium on Simplicity in Algorithms (SOSA), n.d., pp. 247–253.'
date_created: 2025-10-22T09:33:22Z
date_updated: 2026-04-20T13:53:03Z
department:
- _id: '7'
- _id: '623'
external_id:
arxiv:
- '2510.18164'
language:
- iso: eng
page: 247-253
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: conference
user_id: '71541'
year: '2026'
...
---
_id: '65482'
author:
- first_name: Fabian
full_name: Hüwel, Fabian
last_name: Hüwel
citation:
ama: Hüwel F. Untersuchung Der Einflussfaktoren Auf Die Recyclingfähigkeit von
Flammgeschütztem Polyamid 12-Pulver Beim Selektiven Lasersintern (Studienarbeit).;
2026.
apa: Hüwel, F. (2026). Untersuchung der Einflussfaktoren auf die Recyclingfähigkeit
von flammgeschütztem Polyamid 12-Pulver beim selektiven Lasersintern (Studienarbeit).
bibtex: '@book{Hüwel_2026, title={Untersuchung der Einflussfaktoren auf die Recyclingfähigkeit
von flammgeschütztem Polyamid 12-Pulver beim selektiven Lasersintern (Studienarbeit)},
author={Hüwel, Fabian}, year={2026} }'
chicago: Hüwel, Fabian. Untersuchung Der Einflussfaktoren Auf Die Recyclingfähigkeit
von Flammgeschütztem Polyamid 12-Pulver Beim Selektiven Lasersintern (Studienarbeit),
2026.
ieee: F. Hüwel, Untersuchung der Einflussfaktoren auf die Recyclingfähigkeit
von flammgeschütztem Polyamid 12-Pulver beim selektiven Lasersintern (Studienarbeit).
2026.
mla: Hüwel, Fabian. Untersuchung Der Einflussfaktoren Auf Die Recyclingfähigkeit
von Flammgeschütztem Polyamid 12-Pulver Beim Selektiven Lasersintern (Studienarbeit).
2026.
short: F. Hüwel, Untersuchung Der Einflussfaktoren Auf Die Recyclingfähigkeit von
Flammgeschütztem Polyamid 12-Pulver Beim Selektiven Lasersintern (Studienarbeit),
2026.
date_created: 2026-04-22T08:03:46Z
date_updated: 2026-04-22T08:04:02Z
department:
- _id: '150'
- _id: '624'
- _id: '9'
language:
- iso: eng
status: public
supervisor:
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
- first_name: Steffen
full_name: Jesinghausen, Steffen
id: '3959'
last_name: Jesinghausen
orcid: https://orcid.org/0000-0003-2611-5298
- first_name: Fabian
full_name: Neitzel, Fabian
id: '72307'
last_name: Neitzel
orcid: '0009-0004-8412-3645 '
title: Untersuchung der Einflussfaktoren auf die Recyclingfähigkeit von flammgeschütztem
Polyamid 12-Pulver beim selektiven Lasersintern (Studienarbeit)
type: mastersthesis
user_id: '72307'
year: '2026'
...