---
_id: '66942'
abstract:
- lang: eng
text: Raman imaging, based on incoherent spontaneous Raman scattering (SR) or coherent
techniques such as broadband coherent anti-Stokes Raman spectroscopy (BCARS),
is a powerful tool for visualizing local lattice distortions. It can thus be employed,
e.g., to identify and visualize ferroelectric (FE) domain walls (DWs). While SR-based
DW imaging relies on small changes in the intensity or position of Raman peaks
at the DW, BCARS measurements may detect DW signatures with a drastically increased
contrast and orders of magnitude faster imaging speed. However, while SR-based
contrasts can be predicted from existing models, the increased DW contrasts in
BCARS remain poorly understood. In this work, we develop a first-principles approach
for the simulation of CARS spectra to investigate the origin of this BCARS signal
contrast at periodically poled stoichiometric lithium niobate (sPPLN) DWs. Combining
these atomistic simulations with strain modeling allows us to explore how strain
affects the CARS signal generation at FE DWs. We then apply polarization-sensitive
BCARS to image sPPLN DWs for different polarization configurations. Our results
reveal additional Raman peaks specific to the DWs across all investigated polarization
combinations, yielding a strong DW-to-bulk contrast that enables in situ identification
and localization of DWs in two-dimensional BCARS maps. This study demonstrates
the practical utility of polarization-sensitive BCARS for fast DW imaging and
provides fundamental insights into the BCARS contrast mechanism in FE materials,
both in strained regions and in the unstrained bulk.
article_number: '034104'
article_type: original
author:
- first_name: Robin
full_name: Buschbeck, Robin
last_name: Buschbeck
- first_name: Mike N.
full_name: Pionteck, Mike N.
last_name: Pionteck
- first_name: Naomi
full_name: Herrmann, Naomi
last_name: Herrmann
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Susanne C.
full_name: Kehr, Susanne C.
last_name: Kehr
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
citation:
ama: 'Buschbeck R, Pionteck MN, Herrmann N, et al. Ab initio modeling and experimental
analysis of contrast in broadband coherent anti-Stokes Raman spectroscopy: A case
study on ferroelectric domain walls. Physical Review B. 2026;114(3). doi:10.1103/m1xq-rlft'
apa: 'Buschbeck, R., Pionteck, M. N., Herrmann, N., Rüsing, M., Kehr, S. C., Sanna,
S., & Eng, L. M. (2026). Ab initio modeling and experimental analysis of contrast
in broadband coherent anti-Stokes Raman spectroscopy: A case study on ferroelectric
domain walls. Physical Review B, 114(3), Article 034104. https://doi.org/10.1103/m1xq-rlft'
bibtex: '@article{Buschbeck_Pionteck_Herrmann_Rüsing_Kehr_Sanna_Eng_2026, title={Ab
initio modeling and experimental analysis of contrast in broadband coherent anti-Stokes
Raman spectroscopy: A case study on ferroelectric domain walls}, volume={114},
DOI={10.1103/m1xq-rlft}, number={3034104},
journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Buschbeck,
Robin and Pionteck, Mike N. and Herrmann, Naomi and Rüsing, Michael and Kehr,
Susanne C. and Sanna, Simone and Eng, Lukas M.}, year={2026} }'
chicago: 'Buschbeck, Robin, Mike N. Pionteck, Naomi Herrmann, Michael Rüsing, Susanne
C. Kehr, Simone Sanna, and Lukas M. Eng. “Ab Initio Modeling and Experimental
Analysis of Contrast in Broadband Coherent Anti-Stokes Raman Spectroscopy: A Case
Study on Ferroelectric Domain Walls.” Physical Review B 114, no. 3 (2026).
https://doi.org/10.1103/m1xq-rlft.'
ieee: 'R. Buschbeck et al., “Ab initio modeling and experimental analysis
of contrast in broadband coherent anti-Stokes Raman spectroscopy: A case study
on ferroelectric domain walls,” Physical Review B, vol. 114, no. 3, Art.
no. 034104, 2026, doi: 10.1103/m1xq-rlft.'
mla: 'Buschbeck, Robin, et al. “Ab Initio Modeling and Experimental Analysis of
Contrast in Broadband Coherent Anti-Stokes Raman Spectroscopy: A Case Study on
Ferroelectric Domain Walls.” Physical Review B, vol. 114, no. 3, 034104,
American Physical Society (APS), 2026, doi:10.1103/m1xq-rlft.'
short: R. Buschbeck, M.N. Pionteck, N. Herrmann, M. Rüsing, S.C. Kehr, S. Sanna,
L.M. Eng, Physical Review B 114 (2026).
date_created: 2026-09-02T12:04:02Z
date_updated: 2026-09-02T12:06:24Z
department:
- _id: '15'
- _id: '288'
- _id: '623'
doi: 10.1103/m1xq-rlft
intvolume: ' 114'
issue: '3'
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
publisher: American Physical Society (APS)
quality_controlled: '1'
status: public
title: 'Ab initio modeling and experimental analysis of contrast in broadband coherent
anti-Stokes Raman spectroscopy: A case study on ferroelectric domain walls'
type: journal_article
user_id: '22501'
volume: 114
year: '2026'
...
---
_id: '66941'
abstract:
- lang: eng
text: Understanding and controlling the optical properties of lithium niobate tantalate
solid solutions (LiNb1−xTaxO3, 0 ≤ x ≤ 1) is essential for their use in integrated
quantum and nonlinear photonics. This material system allows for composition-dependent
tuning of key optical parameters such as refractive indices and birefringence.
While lithium niobate (LiNbO3, x = 0) and lithium tantalate (LiTaO3, x = 1) are
well characterized, reliable dispersion data for intermediate compositions remain
scarce, limiting accurate modeling and refractive index engineering. Here, we
address this gap by experimentally determining the ordinary and extraordinary
refractive indices of LiNb1−xTaxO3 over the spectral range of 405 − 1550 nm using
an interferometric technique. As a result, composition-dependent refractive index
dispersion and Sellmeier coefficients are derived and discussed in relation to
previous studies and structural aspects. In particular, a monotonic decrease of
the ordinary refractive index with increasing Tantalum concentration is observed.
The present Sellmeier coefficients further allow discussion of zero birefringence
dispersion and its composition dependence in lithium niobate tantalate.
article_number: '2069'
article_type: original
author:
- first_name: Tobias
full_name: Hehemann, Tobias
last_name: Hehemann
- first_name: Niklas
full_name: Dömer, Niklas
last_name: Dömer
- first_name: Felix
full_name: Sauerwein, Felix
last_name: Sauerwein
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Steffen
full_name: Ganschow, Steffen
last_name: Ganschow
- first_name: Mirco
full_name: Imlau, Mirco
last_name: Imlau
citation:
ama: Hehemann T, Dömer N, Sauerwein F, Rüsing M, Ganschow S, Imlau M. Composition-dependent
refractive index dispersion and Sellmeier coefficients for lithium niobate tantalate
solid solutions. Optical Materials Express. 2026;16(7). doi:10.1364/ome.592118
apa: Hehemann, T., Dömer, N., Sauerwein, F., Rüsing, M., Ganschow, S., & Imlau,
M. (2026). Composition-dependent refractive index dispersion and Sellmeier coefficients
for lithium niobate tantalate solid solutions. Optical Materials Express,
16(7), Article 2069. https://doi.org/10.1364/ome.592118
bibtex: '@article{Hehemann_Dömer_Sauerwein_Rüsing_Ganschow_Imlau_2026, title={Composition-dependent
refractive index dispersion and Sellmeier coefficients for lithium niobate tantalate
solid solutions}, volume={16}, DOI={10.1364/ome.592118},
number={72069}, journal={Optical Materials Express}, publisher={Optica Publishing
Group}, author={Hehemann, Tobias and Dömer, Niklas and Sauerwein, Felix and Rüsing,
Michael and Ganschow, Steffen and Imlau, Mirco}, year={2026} }'
chicago: Hehemann, Tobias, Niklas Dömer, Felix Sauerwein, Michael Rüsing, Steffen
Ganschow, and Mirco Imlau. “Composition-Dependent Refractive Index Dispersion
and Sellmeier Coefficients for Lithium Niobate Tantalate Solid Solutions.” Optical
Materials Express 16, no. 7 (2026). https://doi.org/10.1364/ome.592118.
ieee: 'T. Hehemann, N. Dömer, F. Sauerwein, M. Rüsing, S. Ganschow, and M. Imlau,
“Composition-dependent refractive index dispersion and Sellmeier coefficients
for lithium niobate tantalate solid solutions,” Optical Materials Express,
vol. 16, no. 7, Art. no. 2069, 2026, doi: 10.1364/ome.592118.'
mla: Hehemann, Tobias, et al. “Composition-Dependent Refractive Index Dispersion
and Sellmeier Coefficients for Lithium Niobate Tantalate Solid Solutions.” Optical
Materials Express, vol. 16, no. 7, 2069, Optica Publishing Group, 2026, doi:10.1364/ome.592118.
short: T. Hehemann, N. Dömer, F. Sauerwein, M. Rüsing, S. Ganschow, M. Imlau, Optical
Materials Express 16 (2026).
date_created: 2026-09-02T12:01:19Z
date_updated: 2026-09-02T12:06:36Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
doi: 10.1364/ome.592118
funded_apc: '1'
intvolume: ' 16'
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1364/OME.592118
oa: '1'
publication: Optical Materials Express
publication_identifier:
issn:
- 2159-3930
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
status: public
title: Composition-dependent refractive index dispersion and Sellmeier coefficients
for lithium niobate tantalate solid solutions
type: journal_article
user_id: '22501'
volume: 16
year: '2026'
...
---
_id: '66944'
abstract:
- lang: eng
text: "The comprehensive description of both the electrical transport along conductive
domain walls in lithium niobate single crystals and the charge injection at the
interfacing metal electrodes, emerged to be a complex challenge. Recently, a heuristic
evaluation allowed to postulate the “\U0001D4452\U0001D4372\r\n” equivalent-circuit
model (consisting of two parallel resistor-diode pairs) to appropriately match
the dc current-voltage (I-V) characteristics. Here, we carefully revisit the interfacial
electrical behavior, i.e., the diode part of the equivalent circuit model, since
many more processes beyond the diode-related electron hopping transport (HT) assumed
so far, may concurrently occur, such as thermionic emission (TE), Fowler-Nordheim
tunneling (FNT), space-charge limited conduction (SCLC), and others. The “\U0001D4452\U0001D4372\r\n”
model thus needs to be generalized into an “\U0001D4452\U0001D44B2\r\n” circuit
model (with \U0001D44B\r\n= HT, TE, FNT, SCLC, and others) to fit to the experimental
data. Moreover, to check for the best I-V curve fitting to the different theories,
we apply a higher-harmonic DW current-contribution analysis, i.e., an ac I-V inspection,
that allows us to discriminate between all these possible models with much higher
precision than from pure dc I-V curve fitting. Both the ac and dc analysis yield
consistent results, finding that the FNT model accounts best for the domain-wall/electrode
junctions investigated here."
article_number: '045406'
article_type: original
author:
- first_name: Manuel
full_name: Zahn, Manuel
last_name: Zahn
- first_name: Elke
full_name: Beyreuther, Elke
last_name: Beyreuther
- first_name: Iuliia
full_name: Kiseleva, Iuliia
last_name: Kiseleva
- first_name: Julius
full_name: Ratzenberger, Julius
last_name: Ratzenberger
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
citation:
ama: 'Zahn M, Beyreuther E, Kiseleva I, Ratzenberger J, Rüsing M, Eng LM. Domain-wall/metal-electrode
injection barrier in lithium niobate: Fowler-Nordheim tunneling fits best. Physical
Review B. 2026;114(4). doi:10.1103/3q26-4c3g'
apa: 'Zahn, M., Beyreuther, E., Kiseleva, I., Ratzenberger, J., Rüsing, M., &
Eng, L. M. (2026). Domain-wall/metal-electrode injection barrier in lithium niobate:
Fowler-Nordheim tunneling fits best. Physical Review B, 114(4),
Article 045406. https://doi.org/10.1103/3q26-4c3g'
bibtex: '@article{Zahn_Beyreuther_Kiseleva_Ratzenberger_Rüsing_Eng_2026, title={Domain-wall/metal-electrode
injection barrier in lithium niobate: Fowler-Nordheim tunneling fits best}, volume={114},
DOI={10.1103/3q26-4c3g}, number={4045406},
journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Zahn,
Manuel and Beyreuther, Elke and Kiseleva, Iuliia and Ratzenberger, Julius and
Rüsing, Michael and Eng, Lukas M.}, year={2026} }'
chicago: 'Zahn, Manuel, Elke Beyreuther, Iuliia Kiseleva, Julius Ratzenberger, Michael
Rüsing, and Lukas M. Eng. “Domain-Wall/Metal-Electrode Injection Barrier in Lithium
Niobate: Fowler-Nordheim Tunneling Fits Best.” Physical Review B 114, no.
4 (2026). https://doi.org/10.1103/3q26-4c3g.'
ieee: 'M. Zahn, E. Beyreuther, I. Kiseleva, J. Ratzenberger, M. Rüsing, and L. M.
Eng, “Domain-wall/metal-electrode injection barrier in lithium niobate: Fowler-Nordheim
tunneling fits best,” Physical Review B, vol. 114, no. 4, Art. no. 045406,
2026, doi: 10.1103/3q26-4c3g.'
mla: 'Zahn, Manuel, et al. “Domain-Wall/Metal-Electrode Injection Barrier in Lithium
Niobate: Fowler-Nordheim Tunneling Fits Best.” Physical Review B, vol.
114, no. 4, 045406, American Physical Society (APS), 2026, doi:10.1103/3q26-4c3g.'
short: M. Zahn, E. Beyreuther, I. Kiseleva, J. Ratzenberger, M. Rüsing, L.M. Eng,
Physical Review B 114 (2026).
date_created: 2026-09-02T12:05:22Z
date_updated: 2026-09-02T12:05:53Z
doi: 10.1103/3q26-4c3g
intvolume: ' 114'
issue: '4'
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
publisher: American Physical Society (APS)
quality_controlled: '1'
status: public
title: 'Domain-wall/metal-electrode injection barrier in lithium niobate: Fowler-Nordheim
tunneling fits best'
type: journal_article
user_id: '22501'
volume: 114
year: '2026'
...
---
_id: '65359'
abstract:
- lang: eng
text: Lithium niobate sees widespread use in nonlinear and quantum optical
devices, such as for sum- and difference-frequency generation or spontaneous parametric
downconversion. In lithium niobate waveguides, nonlinear optical processes are
often limited by the so-called photorefractive effect, which limits the maximum
input or output powers and impacts the nonlinear spectral response. Therefore,
strategies for the management of photorefractive damage are a key consideration
in device design. Usually, the photorefractive damage threshold, i.e., the maximal
permissible operating power, can be increased by high-temperature operation of
devices. This approach, however, is not applicable in cryogenic environments,
which may be required for specialized applications. To better understand the impact
of photorefraction in nonlinear optical applications, we study the impact of photorefraction
on the phase-matching spectra of two nonlinear-optical sum-frequency generation
experiments at (1) high temperatures and (2) cryogenic temperatures. Furthermore,
we present an approach to reduce the impact of photorefraction, which is compatible
with cryogenic operation. This comprises an auxiliary light source, propagating
in the same waveguide, which is used to restore phase-matching spectra impacted
by photorefraction, as well as reduce pyroelectric effects. Our work provides
an alternative route to photorefraction management applicable to cryogenic environments,
as well as in situations with tight energy budgets, such as space applications.
article_number: '133105'
author:
- first_name: Nina Amelie
full_name: Lange, Nina Amelie
id: '56843'
last_name: Lange
orcid: 0000-0001-6624-7098
- first_name: René
full_name: Pollmann, René
id: '78890'
last_name: Pollmann
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Tim
full_name: Bartley, Tim
last_name: Bartley
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: 'Lange NA, Pollmann R, Rüsing M, et al. Photorefraction management in lithium
niobate waveguides: High-temperature vs cryogenic solutions. Journal of Applied
Physics. 2026;139(13). doi:10.1063/5.0324002'
apa: 'Lange, N. A., Pollmann, R., Rüsing, M., Stefszky, M., Protte, M., Ricken,
R., Padberg, L., Eigner, C., Bartley, T., & Silberhorn, C. (2026). Photorefraction
management in lithium niobate waveguides: High-temperature vs cryogenic solutions.
Journal of Applied Physics, 139(13), Article 133105. https://doi.org/10.1063/5.0324002'
bibtex: '@article{Lange_Pollmann_Rüsing_Stefszky_Protte_Ricken_Padberg_Eigner_Bartley_Silberhorn_2026,
title={Photorefraction management in lithium niobate waveguides: High-temperature
vs cryogenic solutions}, volume={139}, DOI={10.1063/5.0324002},
number={13133105}, journal={Journal of Applied Physics}, publisher={AIP Publishing},
author={Lange, Nina Amelie and Pollmann, René and Rüsing, Michael and Stefszky,
Michael and Protte, Maximilian and Ricken, Raimund and Padberg, Laura and Eigner,
Christof and Bartley, Tim and Silberhorn, Christine}, year={2026} }'
chicago: 'Lange, Nina Amelie, René Pollmann, Michael Rüsing, Michael Stefszky, Maximilian
Protte, Raimund Ricken, Laura Padberg, Christof Eigner, Tim Bartley, and Christine
Silberhorn. “Photorefraction Management in Lithium Niobate Waveguides: High-Temperature
vs Cryogenic Solutions.” Journal of Applied Physics 139, no. 13 (2026).
https://doi.org/10.1063/5.0324002.'
ieee: 'N. A. Lange et al., “Photorefraction management in lithium niobate
waveguides: High-temperature vs cryogenic solutions,” Journal of Applied Physics,
vol. 139, no. 13, Art. no. 133105, 2026, doi: 10.1063/5.0324002.'
mla: 'Lange, Nina Amelie, et al. “Photorefraction Management in Lithium Niobate
Waveguides: High-Temperature vs Cryogenic Solutions.” Journal of Applied Physics,
vol. 139, no. 13, 133105, AIP Publishing, 2026, doi:10.1063/5.0324002.'
short: N.A. Lange, R. Pollmann, M. Rüsing, M. Stefszky, M. Protte, R. Ricken, L.
Padberg, C. Eigner, T. Bartley, C. Silberhorn, Journal of Applied Physics 139
(2026).
date_created: 2026-04-07T08:41:07Z
date_updated: 2026-09-02T12:06:14Z
doi: 10.1063/5.0324002
intvolume: ' 139'
issue: '13'
language:
- iso: eng
publication: Journal of Applied Physics
publication_identifier:
issn:
- 0021-8979
- 1089-7550
publication_status: published
publisher: AIP Publishing
status: public
title: 'Photorefraction management in lithium niobate waveguides: High-temperature
vs cryogenic solutions'
type: journal_article
user_id: '22501'
volume: 139
year: '2026'
...
---
_id: '66947'
author:
- first_name: Petra
full_name: Büker, Petra
id: '21978'
last_name: Büker
- first_name: Hannah Marie
full_name: Fernhomberg, Hannah Marie
id: '39362'
last_name: Fernhomberg
citation:
ama: 'Büker P, Fernhomberg HM. Kinder als Forschende: Sichtweisen von Grundschulkindern
auf ethische Aspekte ihrer eigenen Sozialforschung. In: Velten K, Hüpping B, eds.
Partizipative Forschung mit Kindern in der Grundschule. Ethische Herausforderungen
und Potenziale. 1st ed. Klinkhardt; 2026:91-106.'
apa: 'Büker, P., & Fernhomberg, H. M. (2026). Kinder als Forschende: Sichtweisen
von Grundschulkindern auf ethische Aspekte ihrer eigenen Sozialforschung. In K.
Velten & B. Hüpping (Eds.), Partizipative Forschung mit Kindern in der
Grundschule. Ethische Herausforderungen und Potenziale (1st ed., pp. 91–106).
Klinkhardt.'
bibtex: '@inbook{Büker_Fernhomberg_2026, place={Bad Heilbrunn}, edition={1}, title={Kinder
als Forschende: Sichtweisen von Grundschulkindern auf ethische Aspekte ihrer eigenen
Sozialforschung}, booktitle={Partizipative Forschung mit Kindern in der Grundschule.
Ethische Herausforderungen und Potenziale}, publisher={Klinkhardt}, author={Büker,
Petra and Fernhomberg, Hannah Marie}, editor={Velten, Katrin and Hüpping, Birgit},
year={2026}, pages={91–106} }'
chicago: 'Büker, Petra, and Hannah Marie Fernhomberg. “Kinder als Forschende: Sichtweisen
von Grundschulkindern auf ethische Aspekte ihrer eigenen Sozialforschung.” In
Partizipative Forschung mit Kindern in der Grundschule. Ethische Herausforderungen
und Potenziale, edited by Katrin Velten and Birgit Hüpping, 1st ed., 91–106.
Bad Heilbrunn: Klinkhardt, 2026.'
ieee: 'P. Büker and H. M. Fernhomberg, “Kinder als Forschende: Sichtweisen von Grundschulkindern
auf ethische Aspekte ihrer eigenen Sozialforschung,” in Partizipative Forschung
mit Kindern in der Grundschule. Ethische Herausforderungen und Potenziale,
1st ed., K. Velten and B. Hüpping, Eds. Bad Heilbrunn: Klinkhardt, 2026, pp. 91–106.'
mla: 'Büker, Petra, and Hannah Marie Fernhomberg. “Kinder als Forschende: Sichtweisen
von Grundschulkindern auf ethische Aspekte ihrer eigenen Sozialforschung.” Partizipative
Forschung mit Kindern in der Grundschule. Ethische Herausforderungen und Potenziale,
edited by Katrin Velten and Birgit Hüpping, 1st ed., Klinkhardt, 2026, pp. 91–106.'
short: 'P. Büker, H.M. Fernhomberg, in: K. Velten, B. Hüpping (Eds.), Partizipative
Forschung mit Kindern in der Grundschule. Ethische Herausforderungen und Potenziale,
1st ed., Klinkhardt, Bad Heilbrunn, 2026, pp. 91–106.'
date_created: 2026-09-03T07:40:51Z
date_updated: 2026-09-03T07:41:13Z
department:
- _id: '458'
edition: '1'
editor:
- first_name: Katrin
full_name: Velten, Katrin
last_name: Velten
- first_name: Birgit
full_name: Hüpping, Birgit
last_name: Hüpping
language:
- iso: ger
page: 91-106
place: Bad Heilbrunn
publication: Partizipative Forschung mit Kindern in der Grundschule. Ethische Herausforderungen
und Potenziale
publication_identifier:
isbn:
- '9783781527584'
publication_status: published
publisher: Klinkhardt
status: public
title: 'Kinder als Forschende: Sichtweisen von Grundschulkindern auf ethische Aspekte
ihrer eigenen Sozialforschung'
type: book_chapter
user_id: '26718'
year: '2026'
...
---
_id: '66940'
author:
- first_name: Richard
full_name: Janus, Richard
id: '31047'
last_name: Janus
orcid: https://orcid.org/0009-0006-0365-4546
citation:
ama: 'Janus R. Evangelische Religionslehre. In: del Valle V, Eilerts K, Hinz F,
Hornäk S, Mitterer N, Schroeter-Wittke H, eds. Handbuch performative Fachdidaktiken.
Vandenhoeck&Ruprecht; :318-323. doi:10.36198/9783838566917'
apa: Janus, R. (n.d.). Evangelische Religionslehre. In V. del Valle, K. Eilerts,
F. Hinz, S. Hornäk, N. Mitterer, & H. Schroeter-Wittke (Eds.), Handbuch
performative Fachdidaktiken (pp. 318–323). Vandenhoeck&Ruprecht. https://doi.org/10.36198/9783838566917
bibtex: '@inbook{Janus, place={Göttingen}, title={Evangelische Religionslehre},
DOI={10.36198/9783838566917},
booktitle={Handbuch performative Fachdidaktiken}, publisher={Vandenhoeck&Ruprecht},
author={Janus, Richard}, editor={del Valle, Viktoria and Eilerts, Katja and Hinz,
Felix and Hornäk, Sara and Mitterer, Nicola and Schroeter-Wittke, Harald}, pages={318–323}
}'
chicago: 'Janus, Richard. “Evangelische Religionslehre.” In Handbuch performative
Fachdidaktiken, edited by Viktoria del Valle, Katja Eilerts, Felix Hinz, Sara
Hornäk, Nicola Mitterer, and Harald Schroeter-Wittke, 318–23. Göttingen: Vandenhoeck&Ruprecht,
n.d. https://doi.org/10.36198/9783838566917.'
ieee: 'R. Janus, “Evangelische Religionslehre,” in Handbuch performative Fachdidaktiken,
V. del Valle, K. Eilerts, F. Hinz, S. Hornäk, N. Mitterer, and H. Schroeter-Wittke,
Eds. Göttingen: Vandenhoeck&Ruprecht, pp. 318–323.'
mla: Janus, Richard. “Evangelische Religionslehre.” Handbuch performative Fachdidaktiken,
edited by Viktoria del Valle et al., Vandenhoeck&Ruprecht, pp. 318–23, doi:10.36198/9783838566917.
short: 'R. Janus, in: V. del Valle, K. Eilerts, F. Hinz, S. Hornäk, N. Mitterer,
H. Schroeter-Wittke (Eds.), Handbuch performative Fachdidaktiken, Vandenhoeck&Ruprecht,
Göttingen, n.d., pp. 318–323.'
date_created: 2026-09-02T12:01:52Z
date_updated: 2026-09-02T12:06:42Z
department:
- _id: '36'
- _id: '20'
- _id: '499'
doi: 10.36198/9783838566917
editor:
- first_name: Viktoria
full_name: del Valle, Viktoria
last_name: del Valle
- first_name: Katja
full_name: Eilerts, Katja
last_name: Eilerts
- first_name: Felix
full_name: Hinz, Felix
last_name: Hinz
- first_name: Sara
full_name: Hornäk, Sara
last_name: Hornäk
- first_name: Nicola
full_name: Mitterer, Nicola
last_name: Mitterer
- first_name: Harald
full_name: Schroeter-Wittke, Harald
last_name: Schroeter-Wittke
language:
- iso: ger
page: 318-323
place: Göttingen
publication: Handbuch performative Fachdidaktiken
publication_identifier:
eisbn:
- '9783838566917'
isbn:
- '9783825266912'
publication_status: inpress
publisher: Vandenhoeck&Ruprecht
status: public
title: Evangelische Religionslehre
type: book_chapter
user_id: '31047'
year: '2026'
...
---
_id: '66966'
author:
- first_name: Sourav
full_name: Mukherjee, Sourav
last_name: Mukherjee
- first_name: Bho
full_name: Matthiesen, Bho
id: '126292'
last_name: Matthiesen
orcid: 0000-0002-4582-3938
- first_name: Armin
full_name: Dekorsy, Armin
last_name: Dekorsy
- first_name: Petar
full_name: Popovski, Petar
last_name: Popovski
citation:
ama: 'Mukherjee S, Matthiesen B, Dekorsy A, Popovski P. Dynamic Downlink-Uplink
for Spectrum Sharing in Non-Terrestrial Networks. In: 2026 IEEE International
Conference on Communications Workshops (ICC Workshops). IEEE; 2026. doi:10.1109/iccworkshops63917.2026.11586455'
apa: Mukherjee, S., Matthiesen, B., Dekorsy, A., & Popovski, P. (2026). Dynamic
Downlink-Uplink for Spectrum Sharing in Non-Terrestrial Networks. 2026 IEEE
International Conference on Communications Workshops (ICC Workshops). https://doi.org/10.1109/iccworkshops63917.2026.11586455
bibtex: '@inproceedings{Mukherjee_Matthiesen_Dekorsy_Popovski_2026, title={Dynamic
Downlink-Uplink for Spectrum Sharing in Non-Terrestrial Networks}, DOI={10.1109/iccworkshops63917.2026.11586455},
booktitle={2026 IEEE International Conference on Communications Workshops (ICC
Workshops)}, publisher={IEEE}, author={Mukherjee, Sourav and Matthiesen, Bho and
Dekorsy, Armin and Popovski, Petar}, year={2026} }'
chicago: Mukherjee, Sourav, Bho Matthiesen, Armin Dekorsy, and Petar Popovski. “Dynamic
Downlink-Uplink for Spectrum Sharing in Non-Terrestrial Networks.” In 2026
IEEE International Conference on Communications Workshops (ICC Workshops).
IEEE, 2026. https://doi.org/10.1109/iccworkshops63917.2026.11586455.
ieee: 'S. Mukherjee, B. Matthiesen, A. Dekorsy, and P. Popovski, “Dynamic Downlink-Uplink
for Spectrum Sharing in Non-Terrestrial Networks,” 2026, doi: 10.1109/iccworkshops63917.2026.11586455.'
mla: Mukherjee, Sourav, et al. “Dynamic Downlink-Uplink for Spectrum Sharing in
Non-Terrestrial Networks.” 2026 IEEE International Conference on Communications
Workshops (ICC Workshops), IEEE, 2026, doi:10.1109/iccworkshops63917.2026.11586455.
short: 'S. Mukherjee, B. Matthiesen, A. Dekorsy, P. Popovski, in: 2026 IEEE International
Conference on Communications Workshops (ICC Workshops), IEEE, 2026.'
date_created: 2026-09-04T14:06:11Z
date_updated: 2026-09-04T14:48:47Z
doi: 10.1109/iccworkshops63917.2026.11586455
language:
- iso: eng
publication: 2026 IEEE International Conference on Communications Workshops (ICC Workshops)
publication_status: published
publisher: IEEE
status: public
title: Dynamic Downlink-Uplink for Spectrum Sharing in Non-Terrestrial Networks
type: conference
user_id: '126292'
year: '2026'
...
---
_id: '66967'
author:
- first_name: Bho
full_name: Matthiesen, Bho
id: '126292'
last_name: Matthiesen
orcid: 0000-0002-4582-3938
- first_name: Armin
full_name: Dekorsy, Armin
last_name: Dekorsy
- first_name: Petar
full_name: Popovski, Petar
last_name: Popovski
citation:
ama: 'Matthiesen B, Dekorsy A, Popovski P. Resilient Radio Access Networks: AI and
the Unknown Unknowns. In: 2025 IEEE Globecom Workshops (GC Wkshps). IEEE;
2026. doi:10.1109/gcwkshps68340.2025.11591166'
apa: 'Matthiesen, B., Dekorsy, A., & Popovski, P. (2026). Resilient Radio Access
Networks: AI and the Unknown Unknowns. 2025 IEEE Globecom Workshops (GC Wkshps).
https://doi.org/10.1109/gcwkshps68340.2025.11591166'
bibtex: '@inproceedings{Matthiesen_Dekorsy_Popovski_2026, title={Resilient Radio
Access Networks: AI and the Unknown Unknowns}, DOI={10.1109/gcwkshps68340.2025.11591166},
booktitle={2025 IEEE Globecom Workshops (GC Wkshps)}, publisher={IEEE}, author={Matthiesen,
Bho and Dekorsy, Armin and Popovski, Petar}, year={2026} }'
chicago: 'Matthiesen, Bho, Armin Dekorsy, and Petar Popovski. “Resilient Radio Access
Networks: AI and the Unknown Unknowns.” In 2025 IEEE Globecom Workshops (GC
Wkshps). IEEE, 2026. https://doi.org/10.1109/gcwkshps68340.2025.11591166.'
ieee: 'B. Matthiesen, A. Dekorsy, and P. Popovski, “Resilient Radio Access Networks:
AI and the Unknown Unknowns,” 2026, doi: 10.1109/gcwkshps68340.2025.11591166.'
mla: 'Matthiesen, Bho, et al. “Resilient Radio Access Networks: AI and the Unknown
Unknowns.” 2025 IEEE Globecom Workshops (GC Wkshps), IEEE, 2026, doi:10.1109/gcwkshps68340.2025.11591166.'
short: 'B. Matthiesen, A. Dekorsy, P. Popovski, in: 2025 IEEE Globecom Workshops
(GC Wkshps), IEEE, 2026.'
date_created: 2026-09-04T14:06:22Z
date_updated: 2026-09-04T14:48:31Z
doi: 10.1109/gcwkshps68340.2025.11591166
extern: '1'
language:
- iso: eng
publication: 2025 IEEE Globecom Workshops (GC Wkshps)
publication_status: published
publisher: IEEE
status: public
title: 'Resilient Radio Access Networks: AI and the Unknown Unknowns'
type: conference
user_id: '126292'
year: '2026'
...
---
_id: '67014'
abstract:
- lang: ger
text: "Eine zentrale Herausforderung in der Professionalisierung pädagogischer
Fach- und Lehrkräfte besteht in der Relation von eher theoretischen und praktischen
Ausbildungsbestandteilen. Beispielsweise fühlen sich angehende Lehrkräfte durch
ihr Studium häufig nicht ausreichend auf die beruflichen Anforderungen vorbereitet.
Daher wird verstärkt versucht, Curricula von Ausbildungs- und Studiengängen deutlicher
an den tatsächlichen professionellen Handlungsanforderungen zu orientieren und
auch in frühen Ausbildungsphasen verstärkt Elemente beruflicher Praxis zu integrieren.
\r\nDieser Band nimmt die Handlungsorientierung in der Ausbildung von Lehrkräften
und pädagogischen Fachkräften theoretisch-konzeptionell sowie empirisch in den
Blick. Zudem werden innovative Lehransätze aufgezeigt, die den Fokus auf eine
Stärkung einer solchen Handlungsorientierung legen, z.B. durch simulationsbasierte
Lern- und Prüfungsformate.\r\nEs handelt sich um den zweiten Band der Reihe Paderborner
Beiträge zur Bildungsforschung und Lehrkräftebildung, die von der PLAZ – Professional
School of Education herausgegeben wird."
author:
- first_name: Heike
full_name: Niesen, Heike
last_name: Niesen
- first_name: Dominik
full_name: Rumlich, Dominik
id: '76026'
last_name: Rumlich
orcid: 0000-0001-8682-450X
citation:
ama: 'Niesen H, Rumlich D. Forschendes Lernen im Praxissemester des Faches Englisch.
In: Vogelsang C, Grotegut L, Bruns J, Riese J, Fechner S, eds. Handlungsorientierung
in der Ausbildung von Lehrkräften und pädagogischen Fachkräften. Konzeptionen
und Forschungsperspektiven. Waxmann; 2026:85-101. doi:10.31244/9783818851057'
apa: Niesen, H., & Rumlich, D. (2026). Forschendes Lernen im Praxissemester
des Faches Englisch. In C. Vogelsang, L. Grotegut, J. Bruns, J. Riese, & S.
Fechner (Eds.), Handlungsorientierung in der Ausbildung von Lehrkräften und
pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven (pp. 85–101).
Waxmann. https://doi.org/10.31244/9783818851057
bibtex: '@inbook{Niesen_Rumlich_2026, title={Forschendes Lernen im Praxissemester
des Faches Englisch}, DOI={10.31244/9783818851057},
booktitle={Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen
Fachkräften. Konzeptionen und Forschungsperspektiven}, publisher={Waxmann}, author={Niesen,
Heike and Rumlich, Dominik}, editor={Vogelsang, Christoph and Grotegut, Lea and
Bruns, Julia and Riese, Josef and Fechner, Sabine}, year={2026}, pages={85–101}
}'
chicago: Niesen, Heike, and Dominik Rumlich. “Forschendes Lernen im Praxissemester
des Faches Englisch.” In Handlungsorientierung in der Ausbildung von Lehrkräften
und pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven, edited
by Christoph Vogelsang, Lea Grotegut, Julia Bruns, Josef Riese, and Sabine Fechner,
85–101. Waxmann, 2026. https://doi.org/10.31244/9783818851057.
ieee: H. Niesen and D. Rumlich, “Forschendes Lernen im Praxissemester des Faches
Englisch,” in Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen
Fachkräften. Konzeptionen und Forschungsperspektiven, C. Vogelsang, L. Grotegut,
J. Bruns, J. Riese, and S. Fechner, Eds. Waxmann, 2026, pp. 85–101.
mla: Niesen, Heike, and Dominik Rumlich. “Forschendes Lernen im Praxissemester des
Faches Englisch.” Handlungsorientierung in der Ausbildung von Lehrkräften und
pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven, edited
by Christoph Vogelsang et al., Waxmann, 2026, pp. 85–101, doi:10.31244/9783818851057.
short: 'H. Niesen, D. Rumlich, in: C. Vogelsang, L. Grotegut, J. Bruns, J. Riese,
S. Fechner (Eds.), Handlungsorientierung in der Ausbildung von Lehrkräften und
pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven, Waxmann, 2026,
pp. 85–101.'
date_created: 2026-09-05T18:08:53Z
date_updated: 2026-09-05T18:14:47Z
department:
- _id: '36'
- _id: '1'
- _id: '612'
doi: 10.31244/9783818851057
editor:
- first_name: Christoph
full_name: Vogelsang, Christoph
last_name: Vogelsang
- first_name: Lea
full_name: Grotegut, Lea
last_name: Grotegut
- first_name: Julia
full_name: Bruns, Julia
last_name: Bruns
- first_name: Josef
full_name: Riese, Josef
last_name: Riese
- first_name: Sabine
full_name: Fechner, Sabine
last_name: Fechner
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://doi.org/10.31244/9783818851057
oa: '1'
page: 85-101
publication: Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen
Fachkräften. Konzeptionen und Forschungsperspektiven
publication_identifier:
isbn:
- '9783818801052'
publication_status: published
publisher: Waxmann
status: public
title: Forschendes Lernen im Praxissemester des Faches Englisch
type: book_chapter
user_id: '76026'
year: '2026'
...
---
_id: '67018'
author:
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
citation:
ama: Bielak CR. Methode zur ganzheitlichen Prognose der Fügbarkeit entlang der
Prozesskette am Beispiel des Clinchens. Shaker; 2026. doi:DOI 10.2370/9783819108389
apa: Bielak, C. R. (2026). Methode zur ganzheitlichen Prognose der Fügbarkeit
entlang der Prozesskette am Beispiel des Clinchens. Shaker. https://doi.org/DOI 10.2370/9783819108389
bibtex: '@book{Bielak_2026, title={Methode zur ganzheitlichen Prognose der Fügbarkeit
entlang der Prozesskette am Beispiel des Clinchens}, DOI={DOI 10.2370/9783819108389}, publisher={Shaker}, author={Bielak,
Christian Roman}, year={2026} }'
chicago: Bielak, Christian Roman. Methode zur ganzheitlichen Prognose der Fügbarkeit
entlang der Prozesskette am Beispiel des Clinchens. Shaker, 2026. https://doi.org/DOI 10.2370/9783819108389.
ieee: C. R. Bielak, Methode zur ganzheitlichen Prognose der Fügbarkeit entlang
der Prozesskette am Beispiel des Clinchens. Shaker, 2026.
mla: Bielak, Christian Roman. Methode zur ganzheitlichen Prognose der Fügbarkeit
entlang der Prozesskette am Beispiel des Clinchens. Shaker, 2026, doi:DOI 10.2370/9783819108389.
short: C.R. Bielak, Methode zur ganzheitlichen Prognose der Fügbarkeit entlang der
Prozesskette am Beispiel des Clinchens, Shaker, 2026.
date_created: 2026-09-07T10:48:57Z
date_updated: 2026-09-07T10:49:16Z
department:
- _id: '157'
doi: DOI 10.2370/9783819108389
language:
- iso: ger
publication_identifier:
isbn:
- 978-3-8191-0838-9
publication_status: published
publisher: Shaker
status: public
title: Methode zur ganzheitlichen Prognose der Fügbarkeit entlang der Prozesskette
am Beispiel des Clinchens
type: dissertation
user_id: '34782'
year: '2026'
...
---
_id: '67015'
author:
- first_name: Vanessa
full_name: Albus, Vanessa
id: '80690'
last_name: Albus
citation:
ama: Albus V. Simone de Beauvoir im Kanon. ZDPE. 2026;3:3-7.
apa: Albus, V. (2026). Simone de Beauvoir im Kanon. ZDPE, 3, 3–7.
bibtex: '@article{Albus_2026, title={Simone de Beauvoir im Kanon}, volume={3}, journal={ZDPE},
publisher={C.C.Buchner}, author={Albus, Vanessa}, year={2026}, pages={3–7} }'
chicago: 'Albus, Vanessa. “Simone de Beauvoir im Kanon.” ZDPE 3 (2026): 3–7.'
ieee: V. Albus, “Simone de Beauvoir im Kanon,” ZDPE, vol. 3, pp. 3–7, 2026.
mla: Albus, Vanessa. “Simone de Beauvoir im Kanon.” ZDPE, vol. 3, C.C.Buchner,
2026, pp. 3–7.
short: V. Albus, ZDPE 3 (2026) 3–7.
date_created: 2026-09-06T15:32:10Z
date_updated: 2026-09-06T15:34:21Z
intvolume: ' 3'
language:
- iso: ger
page: 3-7
publication: ZDPE
publication_status: published
publisher: C.C.Buchner
status: public
title: Simone de Beauvoir im Kanon
type: journal_article
user_id: '57447'
volume: 3
year: '2026'
...
---
_id: '67016'
author:
- first_name: Vanessa
full_name: Albus, Vanessa
last_name: Albus
citation:
ama: Albus V. Simone de Beauvoir als Lehrerin und ihr philosophiedidaktisches Potenzial.
ZDPE. 2026;3:81-99.
apa: Albus, V. (2026). Simone de Beauvoir als Lehrerin und ihr philosophiedidaktisches
Potenzial. ZDPE, 3, 81–99.
bibtex: '@article{Albus_2026, title={Simone de Beauvoir als Lehrerin und ihr philosophiedidaktisches
Potenzial}, volume={3}, journal={ZDPE}, author={Albus, Vanessa}, year={2026},
pages={81–99} }'
chicago: 'Albus, Vanessa. “Simone de Beauvoir als Lehrerin und ihr philosophiedidaktisches
Potenzial.” ZDPE 3 (2026): 81–99.'
ieee: V. Albus, “Simone de Beauvoir als Lehrerin und ihr philosophiedidaktisches
Potenzial,” ZDPE, vol. 3, pp. 81–99, 2026.
mla: Albus, Vanessa. “Simone de Beauvoir als Lehrerin und ihr philosophiedidaktisches
Potenzial.” ZDPE, vol. 3, 2026, pp. 81–99.
short: V. Albus, ZDPE 3 (2026) 81–99.
date_created: 2026-09-06T15:38:23Z
date_updated: 2026-09-06T15:46:37Z
intvolume: ' 3'
language:
- iso: ger
page: 81-99
publication: ZDPE
publication_status: published
status: public
title: Simone de Beauvoir als Lehrerin und ihr philosophiedidaktisches Potenzial
type: journal_article
user_id: '57447'
volume: 3
year: '2026'
...
---
_id: '67017'
citation:
ama: Albus V, ed. Simone de Beauvoir, Zeitschrift für Didaktik der Philosophie
und Ethik. Vol 3.; 2026.
apa: Albus, V. (Ed.). (2026). Simone de Beauvoir, Zeitschrift für Didaktik der
Philosophie und Ethik (Vol. 3).
bibtex: '@book{Albus_2026, title={Simone de Beauvoir, Zeitschrift für Didaktik der
Philosophie und Ethik}, volume={3}, year={2026} }'
chicago: Albus, Vanessa, ed. Simone de Beauvoir, Zeitschrift für Didaktik der
Philosophie und Ethik. Vol. 3, 2026.
ieee: V. Albus, Ed., Simone de Beauvoir, Zeitschrift für Didaktik der Philosophie
und Ethik, vol. 3. 2026.
mla: Albus, Vanessa, editor. Simone de Beauvoir, Zeitschrift für Didaktik der
Philosophie und Ethik. 2026.
short: V. Albus, ed., Simone de Beauvoir, Zeitschrift für Didaktik der Philosophie
und Ethik, 2026.
date_created: 2026-09-06T15:50:47Z
date_updated: 2026-09-06T15:51:57Z
editor:
- first_name: Vanessa
full_name: Albus, Vanessa
last_name: Albus
intvolume: ' 3'
language:
- iso: ger
publication_status: published
status: public
title: Simone de Beauvoir, Zeitschrift für Didaktik der Philosophie und Ethik
type: book_editor
user_id: '57447'
volume: 3
year: '2026'
...
---
_id: '67066'
article_number: '112568'
author:
- first_name: Gunter
full_name: Kullmer, Gunter
id: '291'
last_name: Kullmer
- first_name: Sven
full_name: Krome, Sven
id: '57245'
last_name: Krome
- first_name: Richard
full_name: Ostwald, Richard
id: '106876'
last_name: Ostwald
orcid: 0000-0003-2147-8444
citation:
ama: Kullmer G, Krome S, Ostwald R. A new approach for the formulaic description
of the crack growth rate curve for long cracks in aluminum alloys. Engineering
Fracture Mechanics. 2026;345. doi:10.1016/j.engfracmech.2026.112568
apa: Kullmer, G., Krome, S., & Ostwald, R. (2026). A new approach for the formulaic
description of the crack growth rate curve for long cracks in aluminum alloys.
Engineering Fracture Mechanics, 345, Article 112568. https://doi.org/10.1016/j.engfracmech.2026.112568
bibtex: '@article{Kullmer_Krome_Ostwald_2026, title={A new approach for the formulaic
description of the crack growth rate curve for long cracks in aluminum alloys},
volume={345}, DOI={10.1016/j.engfracmech.2026.112568},
number={112568}, journal={Engineering Fracture Mechanics}, publisher={Elsevier
BV}, author={Kullmer, Gunter and Krome, Sven and Ostwald, Richard}, year={2026}
}'
chicago: Kullmer, Gunter, Sven Krome, and Richard Ostwald. “A New Approach for the
Formulaic Description of the Crack Growth Rate Curve for Long Cracks in Aluminum
Alloys.” Engineering Fracture Mechanics 345 (2026). https://doi.org/10.1016/j.engfracmech.2026.112568.
ieee: 'G. Kullmer, S. Krome, and R. Ostwald, “A new approach for the formulaic description
of the crack growth rate curve for long cracks in aluminum alloys,” Engineering
Fracture Mechanics, vol. 345, Art. no. 112568, 2026, doi: 10.1016/j.engfracmech.2026.112568.'
mla: Kullmer, Gunter, et al. “A New Approach for the Formulaic Description of the
Crack Growth Rate Curve for Long Cracks in Aluminum Alloys.” Engineering Fracture
Mechanics, vol. 345, 112568, Elsevier BV, 2026, doi:10.1016/j.engfracmech.2026.112568.
short: G. Kullmer, S. Krome, R. Ostwald, Engineering Fracture Mechanics 345 (2026).
date_created: 2026-09-08T04:52:28Z
date_updated: 2026-09-08T04:54:00Z
department:
- _id: '9'
- _id: '952'
- _id: '321'
doi: 10.1016/j.engfracmech.2026.112568
intvolume: ' 345'
language:
- iso: eng
publication: Engineering Fracture Mechanics
publication_identifier:
issn:
- 0013-7944
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: A new approach for the formulaic description of the crack growth rate curve
for long cracks in aluminum alloys
type: journal_article
user_id: '85414'
volume: 345
year: '2026'
...
---
_id: '67088'
abstract:
- lang: eng
text: We prove quantitative lower bounds on the semidefinite extension complexity
of the set of separable quantum states on $\mathbb{C}^d\otimes\mathbb{C}^d$. We
consider semidefinite programs (SDPs) that approximate the maximum acceptance
probability of a measurement over separable states, the optimization problem underlying
QMA(2). In the extended-formulation model of Harrow, Natarajan, and Wu (HNW),
all measurements share a common feasible region and an objective-independent embedding
of product states that exactly reproduces their acceptance probabilities. For
every $0<θ<2/7$, there are constants $c_θ,a_θ>0$ such that, for sufficiently large
$d$, any such SDP with uniform additive error $0arXiv:260909033.
apa: Gharibian, S., Hecht, C., & Rudolph, D. (n.d.). Semidefinite extension
complexity of the separable set, with applications to approximate disentanglers.
In arXiv:2609.09033.
bibtex: '@article{Gharibian_Hecht_Rudolph, title={Semidefinite extension complexity
of the separable set, with applications to approximate disentanglers}, journal={arXiv:2609.09033},
author={Gharibian, Sevag and Hecht, Carsten and Rudolph, Dorian} }'
chicago: Gharibian, Sevag, Carsten Hecht, and Dorian Rudolph. “Semidefinite Extension
Complexity of the Separable Set, with Applications to Approximate Disentanglers.”
ArXiv:2609.09033, n.d.
ieee: S. Gharibian, C. Hecht, and D. Rudolph, “Semidefinite extension complexity
of the separable set, with applications to approximate disentanglers,” arXiv:2609.09033.
.
mla: Gharibian, Sevag, et al. “Semidefinite Extension Complexity of the Separable
Set, with Applications to Approximate Disentanglers.” ArXiv:2609.09033.
short: S. Gharibian, C. Hecht, D. Rudolph, ArXiv:2609.09033 (n.d.).
date_created: 2026-09-09T12:06:36Z
date_updated: 2026-09-09T12:07:31Z
external_id:
arxiv:
- '2609.09033'
language:
- iso: eng
publication: arXiv:2609.09033
publication_status: unpublished
status: public
title: Semidefinite extension complexity of the separable set, with applications to
approximate disentanglers
type: preprint
user_id: '71541'
year: '2026'
...
---
_id: '67136'
abstract:
- lang: eng
text: A weighted dynamical version $\mathbf{Z}_f$ of the classical Ihara zeta function
is presented on connected finite regular graphs, expressed in terms of weighted
periodic orbit data. We establish its meromorphic continuation, with poles given
by the resonances of the associated non-backtracking transfer operator acting
on a suitable Banach space, and compute its residues. At simple spectral parameters,
the residue of $\mathbf{Z}_f$ is identified with the invariant Ruelle distribution
on the graph phase space. Combining this result with a relation obtained by Arends-Palmirotta,
we further derive Patterson-Sullivan and Wigner residue formulae. This provides
a finite-graph analogue of residue formulae for weighted dynamical zeta functions
for geodesic flow on rank one locally symmetric spaces, in the spirit of Schütte-Barkhofen-Weich.
author:
- first_name: Guendalina
full_name: Palmirotta, Guendalina
id: '109467'
last_name: Palmirotta
citation:
ama: Palmirotta G. Residues of weighted dynamical Ihara zeta functions on finite
regular graphs. Published online 2026.
apa: Palmirotta, G. (2026). Residues of weighted dynamical Ihara zeta functions
on finite regular graphs.
bibtex: '@article{Palmirotta_2026, title={Residues of weighted dynamical Ihara zeta
functions on finite regular graphs}, author={Palmirotta, Guendalina}, year={2026}
}'
chicago: Palmirotta, Guendalina. “Residues of Weighted Dynamical Ihara Zeta Functions
on Finite Regular Graphs,” 2026.
ieee: G. Palmirotta, “Residues of weighted dynamical Ihara zeta functions on finite
regular graphs.” 2026.
mla: Palmirotta, Guendalina. Residues of Weighted Dynamical Ihara Zeta Functions
on Finite Regular Graphs. 2026.
short: G. Palmirotta, (2026).
date_created: 2026-09-14T07:49:06Z
date_updated: 2026-09-14T07:51:03Z
department:
- _id: '548'
- _id: '10'
- _id: '34'
language:
- iso: eng
page: '53'
status: public
title: Residues of weighted dynamical Ihara zeta functions on finite regular graphs
type: preprint
user_id: '109467'
year: '2026'
...
---
_id: '67137'
author:
- first_name: Volker
full_name: Garske, Volker
id: '162'
last_name: Garske
citation:
ama: Garske V. Josef, Der Despot. Theologische Und Didaktische Reflexionen Über
Die Verklärung Eines Biblischen Helden in Aktuellen Materialien Für Den Religionsunterricht
. LIT; 2026.
apa: Garske, V. (2026). Josef, der Despot. Theologische und didaktische Reflexionen
über die Verklärung eines biblischen Helden in aktuellen Materialien für den Religionsunterricht
. LIT.
bibtex: '@book{Garske_2026, place={Berlin}, title={Josef, der Despot. Theologische
und didaktische Reflexionen über die Verklärung eines biblischen Helden in aktuellen
Materialien für den Religionsunterricht }, publisher={LIT}, author={Garske, Volker},
year={2026} }'
chicago: 'Garske, Volker. Josef, Der Despot. Theologische Und Didaktische Reflexionen
Über Die Verklärung Eines Biblischen Helden in Aktuellen Materialien Für Den Religionsunterricht
. Berlin: LIT, 2026.'
ieee: 'V. Garske, Josef, der Despot. Theologische und didaktische Reflexionen
über die Verklärung eines biblischen Helden in aktuellen Materialien für den Religionsunterricht
. Berlin: LIT, 2026.'
mla: Garske, Volker. Josef, Der Despot. Theologische Und Didaktische Reflexionen
Über Die Verklärung Eines Biblischen Helden in Aktuellen Materialien Für Den Religionsunterricht
. LIT, 2026.
short: V. Garske, Josef, Der Despot. Theologische Und Didaktische Reflexionen Über
Die Verklärung Eines Biblischen Helden in Aktuellen Materialien Für Den Religionsunterricht
, LIT, Berlin, 2026.
date_created: 2026-09-14T08:13:53Z
date_updated: 2026-09-14T08:14:21Z
department:
- _id: '36'
language:
- iso: eng
place: Berlin
publication_identifier:
isbn:
- 978-3-643-15874-1
publisher: LIT
status: public
title: 'Josef, der Despot. Theologische und didaktische Reflexionen über die Verklärung
eines biblischen Helden in aktuellen Materialien für den Religionsunterricht '
type: book
user_id: '162'
year: '2026'
...
---
_id: '67139'
author:
- first_name: Lena Katharina
full_name: Schmitt-Richter, Lena Katharina
last_name: Schmitt-Richter
- first_name: Sabrina
full_name: Wüllner Öztüter, Sabrina
id: '105046'
last_name: Wüllner Öztüter
- first_name: Muna
full_name: Ebeling, Muna
last_name: Ebeling
citation:
ama: Schmitt-Richter LK, Wüllner Öztüter S, Ebeling M. Einblicke in die schulinterne
Curriculumentwicklung – Der Schulversuch an der Maria-Montessori-Gesamtschule
in Düsseldorf. PädagogikUNTERRICHT Die Fachzeitschrift für die pädagogische
Fächergruppe. 2026;46(2-3):75-81.
apa: Schmitt-Richter, L. K., Wüllner Öztüter, S., & Ebeling, M. (2026). Einblicke
in die schulinterne Curriculumentwicklung – Der Schulversuch an der Maria-Montessori-Gesamtschule
in Düsseldorf. PädagogikUNTERRICHT. Die Fachzeitschrift für die pädagogische
Fächergruppe., 46(2–3), 75–81.
bibtex: '@article{Schmitt-Richter_Wüllner Öztüter_Ebeling_2026, title={Einblicke
in die schulinterne Curriculumentwicklung – Der Schulversuch an der Maria-Montessori-Gesamtschule
in Düsseldorf}, volume={46}, number={2–3}, journal={PädagogikUNTERRICHT. Die Fachzeitschrift
für die pädagogische Fächergruppe.}, author={Schmitt-Richter, Lena Katharina and
Wüllner Öztüter, Sabrina and Ebeling, Muna}, year={2026}, pages={75–81} }'
chicago: 'Schmitt-Richter, Lena Katharina, Sabrina Wüllner Öztüter, and Muna Ebeling.
“Einblicke in die schulinterne Curriculumentwicklung – Der Schulversuch an der
Maria-Montessori-Gesamtschule in Düsseldorf.” PädagogikUNTERRICHT. Die Fachzeitschrift
für die pädagogische Fächergruppe. 46, no. 2–3 (2026): 75–81.'
ieee: L. K. Schmitt-Richter, S. Wüllner Öztüter, and M. Ebeling, “Einblicke in die
schulinterne Curriculumentwicklung – Der Schulversuch an der Maria-Montessori-Gesamtschule
in Düsseldorf,” PädagogikUNTERRICHT. Die Fachzeitschrift für die pädagogische
Fächergruppe., vol. 46, no. 2–3, pp. 75–81, 2026.
mla: Schmitt-Richter, Lena Katharina, et al. “Einblicke in die schulinterne Curriculumentwicklung
– Der Schulversuch an der Maria-Montessori-Gesamtschule in Düsseldorf.” PädagogikUNTERRICHT.
Die Fachzeitschrift für die pädagogische Fächergruppe., vol. 46, no. 2–3,
2026, pp. 75–81.
short: L.K. Schmitt-Richter, S. Wüllner Öztüter, M. Ebeling, PädagogikUNTERRICHT.
Die Fachzeitschrift für die pädagogische Fächergruppe. 46 (2026) 75–81.
date_created: 2026-09-14T11:06:53Z
date_updated: 2026-09-14T11:11:53Z
intvolume: ' 46'
issue: 2-3
language:
- iso: ger
page: 75-81
publication: PädagogikUNTERRICHT. Die Fachzeitschrift für die pädagogische Fächergruppe.
publication_identifier:
issn:
- 0176-179X
status: public
title: Einblicke in die schulinterne Curriculumentwicklung – Der Schulversuch an der
Maria-Montessori-Gesamtschule in Düsseldorf
type: journal_article
user_id: '105046'
volume: 46
year: '2026'
...
---
_id: '67024'
author:
- first_name: Stefanie
full_name: Leinfellner, Stefanie
id: '15313'
last_name: Leinfellner
citation:
ama: 'Leinfellner S. Partizipation, Geschlecht und ,Holding steady’ in wissenschaftlichen
Beschäftigungsverhältnissen. In: Hansen C, Schreckenberg C, Treder A, eds. Macht
und Partizipation in gesellschaftlichen Transformationsprozessen. Vol 4. Interdisziplinäre
Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften. wbg.'
apa: Leinfellner, S. (n.d.). Partizipation, Geschlecht und ,Holding steady’ in wissenschaftlichen
Beschäftigungsverhältnissen. In C. Hansen, C. Schreckenberg, & A. Treder (Eds.),
Macht und Partizipation in gesellschaftlichen Transformationsprozessen
(Vol. 4). wbg.
bibtex: '@inbook{Leinfellner, place={Freiburg im Breisgau}, series={Interdisziplinäre
Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften}, title={Partizipation,
Geschlecht und ,Holding steady’ in wissenschaftlichen Beschäftigungsverhältnissen},
volume={4}, booktitle={Macht und Partizipation in gesellschaftlichen Transformationsprozessen},
publisher={wbg}, author={Leinfellner, Stefanie}, editor={Hansen, Christin and
Schreckenberg, Carolin and Treder, Alexandra}, collection={Interdisziplinäre Studien
des Paderborner Graduiertenzentrums für Kulturwissenschaften} }'
chicago: 'Leinfellner, Stefanie. “Partizipation, Geschlecht und ,Holding steady’
in wissenschaftlichen Beschäftigungsverhältnissen.” In Macht und Partizipation
in gesellschaftlichen Transformationsprozessen, edited by Christin Hansen,
Carolin Schreckenberg, and Alexandra Treder, Vol. 4. Interdisziplinäre Studien
des Paderborner Graduiertenzentrums für Kulturwissenschaften. Freiburg im Breisgau:
wbg, n.d.'
ieee: 'S. Leinfellner, “Partizipation, Geschlecht und ,Holding steady’ in wissenschaftlichen
Beschäftigungsverhältnissen,” in Macht und Partizipation in gesellschaftlichen
Transformationsprozessen, vol. 4, C. Hansen, C. Schreckenberg, and A. Treder,
Eds. Freiburg im Breisgau: wbg.'
mla: Leinfellner, Stefanie. “Partizipation, Geschlecht und ,Holding steady’ in wissenschaftlichen
Beschäftigungsverhältnissen.” Macht und Partizipation in gesellschaftlichen
Transformationsprozessen, edited by Christin Hansen et al., vol. 4, wbg.
short: 'S. Leinfellner, in: C. Hansen, C. Schreckenberg, A. Treder (Eds.), Macht
und Partizipation in gesellschaftlichen Transformationsprozessen, wbg, Freiburg
im Breisgau, n.d.'
date_created: 2026-09-07T13:02:09Z
date_updated: 2026-09-15T10:43:47Z
editor:
- first_name: Christin
full_name: Hansen, Christin
last_name: Hansen
- first_name: Carolin
full_name: Schreckenberg, Carolin
last_name: Schreckenberg
- first_name: Alexandra
full_name: Treder, Alexandra
last_name: Treder
intvolume: ' 4'
language:
- iso: ger
place: Freiburg im Breisgau
publication: Macht und Partizipation in gesellschaftlichen Transformationsprozessen
publication_status: inpress
publisher: wbg
series_title: Interdisziplinäre Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften
status: public
title: Partizipation, Geschlecht und ,Holding steady' in wissenschaftlichen Beschäftigungsverhältnissen
type: book_chapter
user_id: '15313'
volume: 4
year: '2026'
...
---
_id: '67161'
abstract:
- lang: eng
text: Optimization algorithms contain parameters that greatly influence
their behavior. Finding the right settings for parameters through automated algorithm
configuration has become a critical component of designing competitive algorithms.
While traditional offline configurators tackle this problem by finding one configuration
that works well for a set of instances, instance-specific algorithm configuration
utilizes features of the instances to provide configurations that are tailored
to each instance to maximize performance. We propose the first instance-specific
algorithm configurator based on deep reinforcement learning that can be used in
general algorithm configuration settings. Our method is able to handle large,
mixed, discrete and continuous search spaces and only requires a small number
of instances for training. Not only does it select an individual configuration
for every instance, it also selects configurations from a much broader range.
We show that our configurator provides improvements over the state-of-the-art
instance-specific configurators ISAC++ and Hydra on a wide range of problem domains.
article_number: '3844954'
author:
- first_name: Elias
full_name: Schede, Elias
last_name: Schede
- first_name: Moritz Vinzent
full_name: Seiler, Moritz Vinzent
last_name: Seiler
- first_name: Carolin
full_name: Mensendiek, Carolin
id: '75006'
last_name: Mensendiek
- first_name: Kevin
full_name: Tierney, Kevin
last_name: Tierney
- first_name: Heike
full_name: Trautmann, Heike
id: '100740'
last_name: Trautmann
orcid: 0000-0002-9788-8282
citation:
ama: 'Schede E, Seiler MV, Mensendiek C, Tierney K, Trautmann H. OPTICAT: A Deep
Reinforcement Learning Framework for Instance-Specific Algorithm Configuration.
ACM Transactions on Evolutionary Learning and Optimization. Published online
2026. doi:10.1145/3844954'
apa: 'Schede, E., Seiler, M. V., Mensendiek, C., Tierney, K., & Trautmann, H.
(2026). OPTICAT: A Deep Reinforcement Learning Framework for Instance-Specific
Algorithm Configuration. ACM Transactions on Evolutionary Learning and Optimization,
Article 3844954. https://doi.org/10.1145/3844954'
bibtex: '@article{Schede_Seiler_Mensendiek_Tierney_Trautmann_2026, title={OPTICAT:
A Deep Reinforcement Learning Framework for Instance-Specific Algorithm Configuration},
DOI={10.1145/3844954}, number={3844954},
journal={ACM Transactions on Evolutionary Learning and Optimization}, publisher={Association
for Computing Machinery (ACM)}, author={Schede, Elias and Seiler, Moritz Vinzent
and Mensendiek, Carolin and Tierney, Kevin and Trautmann, Heike}, year={2026}
}'
chicago: 'Schede, Elias, Moritz Vinzent Seiler, Carolin Mensendiek, Kevin Tierney,
and Heike Trautmann. “OPTICAT: A Deep Reinforcement Learning Framework for Instance-Specific
Algorithm Configuration.” ACM Transactions on Evolutionary Learning and Optimization,
2026. https://doi.org/10.1145/3844954.'
ieee: 'E. Schede, M. V. Seiler, C. Mensendiek, K. Tierney, and H. Trautmann, “OPTICAT:
A Deep Reinforcement Learning Framework for Instance-Specific Algorithm Configuration,”
ACM Transactions on Evolutionary Learning and Optimization, Art. no. 3844954,
2026, doi: 10.1145/3844954.'
mla: 'Schede, Elias, et al. “OPTICAT: A Deep Reinforcement Learning Framework for
Instance-Specific Algorithm Configuration.” ACM Transactions on Evolutionary
Learning and Optimization, 3844954, Association for Computing Machinery (ACM),
2026, doi:10.1145/3844954.'
short: E. Schede, M.V. Seiler, C. Mensendiek, K. Tierney, H. Trautmann, ACM Transactions
on Evolutionary Learning and Optimization (2026).
date_created: 2026-09-17T05:10:53Z
date_updated: 2026-09-17T05:11:28Z
department:
- _id: '819'
doi: 10.1145/3844954
language:
- iso: eng
publication: ACM Transactions on Evolutionary Learning and Optimization
publication_identifier:
issn:
- 2688-299X
- 2688-3007
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: 'OPTICAT: A Deep Reinforcement Learning Framework for Instance-Specific Algorithm
Configuration'
type: journal_article
user_id: '15504'
year: '2026'
...