---
_id: '10015'
author:
- first_name: Christof
full_name: Dues, Christof
last_name: Dues
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
citation:
ama: Dues C, Schmidt WG, Sanna S. Water Splitting Reaction at Polar Lithium Niobate
Surfaces. ACS Omega. Published online 2019:3850-3859. doi:10.1021/acsomega.8b03271
apa: Dues, C., Schmidt, W. G., & Sanna, S. (2019). Water Splitting Reaction
at Polar Lithium Niobate Surfaces. ACS Omega, 3850–3859. https://doi.org/10.1021/acsomega.8b03271
bibtex: '@article{Dues_Schmidt_Sanna_2019, title={Water Splitting Reaction at Polar
Lithium Niobate Surfaces}, DOI={10.1021/acsomega.8b03271},
journal={ACS Omega}, author={Dues, Christof and Schmidt, Wolf Gero and Sanna,
Simone}, year={2019}, pages={3850–3859} }'
chicago: Dues, Christof, Wolf Gero Schmidt, and Simone Sanna. “Water Splitting Reaction
at Polar Lithium Niobate Surfaces.” ACS Omega, 2019, 3850–59. https://doi.org/10.1021/acsomega.8b03271.
ieee: 'C. Dues, W. G. Schmidt, and S. Sanna, “Water Splitting Reaction at Polar
Lithium Niobate Surfaces,” ACS Omega, pp. 3850–3859, 2019, doi: 10.1021/acsomega.8b03271.'
mla: Dues, Christof, et al. “Water Splitting Reaction at Polar Lithium Niobate Surfaces.”
ACS Omega, 2019, pp. 3850–59, doi:10.1021/acsomega.8b03271.
short: C. Dues, W.G. Schmidt, S. Sanna, ACS Omega (2019) 3850–3859.
date_created: 2019-05-29T07:15:06Z
date_updated: 2023-04-20T14:21:28Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
doi: 10.1021/acsomega.8b03271
funded_apc: '1'
language:
- iso: eng
page: 3850-3859
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: TRR 142
- _id: '55'
name: TRR 142 - Project Area B
- _id: '69'
name: TRR 142 - Subproject B4
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: ACS Omega
publication_identifier:
issn:
- 2470-1343
- 2470-1343
publication_status: published
status: public
title: Water Splitting Reaction at Polar Lithium Niobate Surfaces
type: journal_article
user_id: '16199'
year: '2019'
...
---
_id: '37288'
abstract:
- lang: eng
text: An integrated chip with quantum state generation, active polarization
manipulation, and precise time control is demonstrated.
author:
- first_name: Kai-Hong
full_name: Luo, Kai-Hong
id: '36389'
last_name: Luo
orcid: 0000-0003-1008-4976
- first_name: Sebastian
full_name: Brauner, Sebastian
id: '38161'
last_name: Brauner
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Polina
full_name: Sharapova, Polina
id: '60286'
last_name: Sharapova
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Luo K-H, Brauner S, Eigner C, et al. Nonlinear integrated quantum electro-optic
circuits. Science Advances. 2019;5(1). doi:10.1126/sciadv.aat1451
apa: Luo, K.-H., Brauner, S., Eigner, C., Sharapova, P., Ricken, R., Meier, T.,
Herrmann, H., & Silberhorn, C. (2019). Nonlinear integrated quantum electro-optic
circuits. Science Advances, 5(1). https://doi.org/10.1126/sciadv.aat1451
bibtex: '@article{Luo_Brauner_Eigner_Sharapova_Ricken_Meier_Herrmann_Silberhorn_2019,
title={Nonlinear integrated quantum electro-optic circuits}, volume={5}, DOI={10.1126/sciadv.aat1451}, number={1},
journal={Science Advances}, publisher={American Association for the Advancement
of Science (AAAS)}, author={Luo, Kai-Hong and Brauner, Sebastian and Eigner, Christof
and Sharapova, Polina and Ricken, Raimund and Meier, Torsten and Herrmann, Harald
and Silberhorn, Christine}, year={2019} }'
chicago: Luo, Kai-Hong, Sebastian Brauner, Christof Eigner, Polina Sharapova, Raimund
Ricken, Torsten Meier, Harald Herrmann, and Christine Silberhorn. “Nonlinear Integrated
Quantum Electro-Optic Circuits.” Science Advances 5, no. 1 (2019). https://doi.org/10.1126/sciadv.aat1451.
ieee: 'K.-H. Luo et al., “Nonlinear integrated quantum electro-optic circuits,”
Science Advances, vol. 5, no. 1, 2019, doi: 10.1126/sciadv.aat1451.'
mla: Luo, Kai-Hong, et al. “Nonlinear Integrated Quantum Electro-Optic Circuits.”
Science Advances, vol. 5, no. 1, American Association for the Advancement
of Science (AAAS), 2019, doi:10.1126/sciadv.aat1451.
short: K.-H. Luo, S. Brauner, C. Eigner, P. Sharapova, R. Ricken, T. Meier, H. Herrmann,
C. Silberhorn, Science Advances 5 (2019).
date_created: 2023-01-18T10:35:19Z
date_updated: 2023-04-21T11:25:39Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '623'
- _id: '429'
- _id: '35'
doi: 10.1126/sciadv.aat1451
intvolume: ' 5'
issue: '1'
keyword:
- Multidisciplinary
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '72'
name: 'TRR 142 - C2: TRR 142 - Subproject C2'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Science Advances
publication_identifier:
issn:
- 2375-2548
publication_status: published
publisher: American Association for the Advancement of Science (AAAS)
status: public
title: Nonlinear integrated quantum electro-optic circuits
type: journal_article
user_id: '16199'
volume: 5
year: '2019'
...
---
_id: '13285'
article_number: 109160O
author:
- first_name: Wolf-Rüdiger
full_name: Hannes, Wolf-Rüdiger
last_name: Hannes
- first_name: Laura
full_name: Krauß-Kodytek, Laura
last_name: Krauß-Kodytek
- first_name: Claudia
full_name: Ruppert, Claudia
last_name: Ruppert
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: 'Hannes W-R, Krauß-Kodytek L, Ruppert C, Betz M, Meier T. Intensity-dependent
degenerate and non-degenerate nonlinear optical absorption of direct-gap semiconductors.
In: Betz M, Elezzabi AY, eds. Ultrafast Phenomena and Nanophotonics XXIII.
Vol 10916. SPIE Proceedings. ; 2019. doi:10.1117/12.2503539'
apa: Hannes, W.-R., Krauß-Kodytek, L., Ruppert, C., Betz, M., & Meier, T. (2019).
Intensity-dependent degenerate and non-degenerate nonlinear optical absorption
of direct-gap semiconductors. In M. Betz & A. Y. Elezzabi (Eds.), Ultrafast
Phenomena and Nanophotonics XXIII (No. 109160O; Vol. 10916). https://doi.org/10.1117/12.2503539
bibtex: '@inproceedings{Hannes_Krauß-Kodytek_Ruppert_Betz_Meier_2019, series={SPIE
Proceedings}, title={Intensity-dependent degenerate and non-degenerate nonlinear
optical absorption of direct-gap semiconductors}, volume={10916}, DOI={10.1117/12.2503539},
number={109160O}, booktitle={Ultrafast Phenomena and Nanophotonics XXIII}, author={Hannes,
Wolf-Rüdiger and Krauß-Kodytek, Laura and Ruppert, Claudia and Betz, Markus and
Meier, Torsten}, editor={Betz, Markus and Elezzabi, Abdulhakem Y.}, year={2019},
collection={SPIE Proceedings} }'
chicago: Hannes, Wolf-Rüdiger, Laura Krauß-Kodytek, Claudia Ruppert, Markus Betz,
and Torsten Meier. “Intensity-Dependent Degenerate and Non-Degenerate Nonlinear
Optical Absorption of Direct-Gap Semiconductors.” In Ultrafast Phenomena and
Nanophotonics XXIII, edited by Markus Betz and Abdulhakem Y. Elezzabi, Vol.
10916. SPIE Proceedings, 2019. https://doi.org/10.1117/12.2503539.
ieee: 'W.-R. Hannes, L. Krauß-Kodytek, C. Ruppert, M. Betz, and T. Meier, “Intensity-dependent
degenerate and non-degenerate nonlinear optical absorption of direct-gap semiconductors,”
in Ultrafast Phenomena and Nanophotonics XXIII, 2019, vol. 10916, doi:
10.1117/12.2503539.'
mla: Hannes, Wolf-Rüdiger, et al. “Intensity-Dependent Degenerate and Non-Degenerate
Nonlinear Optical Absorption of Direct-Gap Semiconductors.” Ultrafast Phenomena
and Nanophotonics XXIII, edited by Markus Betz and Abdulhakem Y. Elezzabi,
vol. 10916, 109160O, 2019, doi:10.1117/12.2503539.
short: 'W.-R. Hannes, L. Krauß-Kodytek, C. Ruppert, M. Betz, T. Meier, in: M. Betz,
A.Y. Elezzabi (Eds.), Ultrafast Phenomena and Nanophotonics XXIII, 2019.'
date_created: 2019-09-18T14:22:29Z
date_updated: 2023-04-21T11:26:51Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '35'
- _id: '230'
doi: 10.1117/12.2503539
editor:
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Abdulhakem Y.
full_name: Elezzabi, Abdulhakem Y.
last_name: Elezzabi
intvolume: ' 10916'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '64'
name: TRR 142 - Subproject A7
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Ultrafast Phenomena and Nanophotonics XXIII
publication_identifier:
isbn:
- '9781510624740'
- '9781510624757'
publication_status: published
series_title: SPIE Proceedings
status: public
title: Intensity-dependent degenerate and non-degenerate nonlinear optical absorption
of direct-gap semiconductors
type: conference
user_id: '16199'
volume: 10916
year: '2019'
...
---
_id: '13284'
article_number: '125301'
author:
- first_name: Wolf-Rüdiger
full_name: Hannes, Wolf-Rüdiger
id: '66789'
last_name: Hannes
orcid: https://orcid.org/0000-0003-1210-4838
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: Hannes W-R, Meier T. Higher-order contributions and nonperturbative effects
in the nondegenerate nonlinear optical absorption of semiconductors using a two-band
model. Physical Review B. 2019;99(12). doi:10.1103/physrevb.99.125301
apa: Hannes, W.-R., & Meier, T. (2019). Higher-order contributions and nonperturbative
effects in the nondegenerate nonlinear optical absorption of semiconductors using
a two-band model. Physical Review B, 99(12), Article 125301. https://doi.org/10.1103/physrevb.99.125301
bibtex: '@article{Hannes_Meier_2019, title={Higher-order contributions and nonperturbative
effects in the nondegenerate nonlinear optical absorption of semiconductors using
a two-band model}, volume={99}, DOI={10.1103/physrevb.99.125301},
number={12125301}, journal={Physical Review B}, author={Hannes, Wolf-Rüdiger and
Meier, Torsten}, year={2019} }'
chicago: Hannes, Wolf-Rüdiger, and Torsten Meier. “Higher-Order Contributions and
Nonperturbative Effects in the Nondegenerate Nonlinear Optical Absorption of Semiconductors
Using a Two-Band Model.” Physical Review B 99, no. 12 (2019). https://doi.org/10.1103/physrevb.99.125301.
ieee: 'W.-R. Hannes and T. Meier, “Higher-order contributions and nonperturbative
effects in the nondegenerate nonlinear optical absorption of semiconductors using
a two-band model,” Physical Review B, vol. 99, no. 12, Art. no. 125301,
2019, doi: 10.1103/physrevb.99.125301.'
mla: Hannes, Wolf-Rüdiger, and Torsten Meier. “Higher-Order Contributions and Nonperturbative
Effects in the Nondegenerate Nonlinear Optical Absorption of Semiconductors Using
a Two-Band Model.” Physical Review B, vol. 99, no. 12, 125301, 2019, doi:10.1103/physrevb.99.125301.
short: W.-R. Hannes, T. Meier, Physical Review B 99 (2019).
date_created: 2019-09-18T14:18:05Z
date_updated: 2023-04-21T11:26:19Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1103/physrevb.99.125301
intvolume: ' 99'
issue: '12'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '64'
name: TRR 142 - Subproject A7
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
status: public
title: Higher-order contributions and nonperturbative effects in the nondegenerate
nonlinear optical absorption of semiconductors using a two-band model
type: journal_article
user_id: '16199'
volume: 99
year: '2019'
...
---
_id: '13365'
abstract:
- lang: eng
text: 'The KTiOPO4 (KTP) band structure and dielectric function are calculated on
various levels of theory starting from density-functional calculations. Within
the independent-particle approximation an electronic transport gap of 2.97 eV
is obtained that widens to about 5.23 eV when quasiparticle effects are included
using the GW approximation. The optical response is shown to be strongly anisotropic
due to (i) the slight asymmetry of the TiO6 octahedra in the (001) plane and (ii)
their anisotropic distribution along the [001] and [100] directions. In addition,
excitonic effects are very important: The solution of the Bethe–Salpeter equation
indicates exciton binding energies of the order of 1.5 eV. Calculations that include
both quasiparticle and excitonic effects are in good agreement with the measured
reflectivity.'
article_type: original
author:
- first_name: Sergej
full_name: Neufeld, Sergej
id: '23261'
last_name: Neufeld
- first_name: Adriana
full_name: Bocchini, Adriana
id: '58349'
last_name: Bocchini
orcid: https://orcid.org/0000-0002-2134-3075
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
citation:
ama: 'Neufeld S, Bocchini A, Gerstmann U, Schindlmayr A, Schmidt WG. Potassium titanyl
phosphate (KTP) quasiparticle energies and optical response. Journal of Physics:
Materials. 2019;2:045003. doi:10.1088/2515-7639/ab29ba'
apa: 'Neufeld, S., Bocchini, A., Gerstmann, U., Schindlmayr, A., & Schmidt,
W. G. (2019). Potassium titanyl phosphate (KTP) quasiparticle energies and optical
response. Journal of Physics: Materials, 2, 045003. https://doi.org/10.1088/2515-7639/ab29ba'
bibtex: '@article{Neufeld_Bocchini_Gerstmann_Schindlmayr_Schmidt_2019, title={Potassium
titanyl phosphate (KTP) quasiparticle energies and optical response}, volume={2},
DOI={10.1088/2515-7639/ab29ba},
journal={Journal of Physics: Materials}, publisher={IOP Publishing}, author={Neufeld,
Sergej and Bocchini, Adriana and Gerstmann, Uwe and Schindlmayr, Arno and Schmidt,
Wolf Gero}, year={2019}, pages={045003} }'
chicago: 'Neufeld, Sergej, Adriana Bocchini, Uwe Gerstmann, Arno Schindlmayr, and
Wolf Gero Schmidt. “Potassium Titanyl Phosphate (KTP) Quasiparticle Energies and
Optical Response.” Journal of Physics: Materials 2 (2019): 045003. https://doi.org/10.1088/2515-7639/ab29ba.'
ieee: 'S. Neufeld, A. Bocchini, U. Gerstmann, A. Schindlmayr, and W. G. Schmidt,
“Potassium titanyl phosphate (KTP) quasiparticle energies and optical response,”
Journal of Physics: Materials, vol. 2, p. 045003, 2019, doi: 10.1088/2515-7639/ab29ba.'
mla: 'Neufeld, Sergej, et al. “Potassium Titanyl Phosphate (KTP) Quasiparticle Energies
and Optical Response.” Journal of Physics: Materials, vol. 2, IOP Publishing,
2019, p. 045003, doi:10.1088/2515-7639/ab29ba.'
short: 'S. Neufeld, A. Bocchini, U. Gerstmann, A. Schindlmayr, W.G. Schmidt, Journal
of Physics: Materials 2 (2019) 045003.'
date_created: 2019-09-19T14:34:16Z
date_updated: 2023-04-21T11:36:12Z
ddc:
- '530'
department:
- _id: '296'
- _id: '295'
- _id: '230'
- _id: '429'
- _id: '170'
- _id: '35'
doi: 10.1088/2515-7639/ab29ba
external_id:
isi:
- '000560410300003'
file:
- access_level: open_access
content_type: application/pdf
creator: schindlm
date_created: 2020-08-28T09:07:18Z
date_updated: 2020-08-30T14:29:27Z
description: Creative Commons Attribution 3.0 Unported Public License (CC BY 3.0)
file_id: '18535'
file_name: Neufeld_2019_J._Phys._Mater._2_045003.pdf
file_size: 1481174
relation: main_file
title: Potassium titanyl phosphate (KTP) quasiparticle energies and optical response
file_date_updated: 2020-08-30T14:29:27Z
has_accepted_license: '1'
intvolume: ' 2'
isi: '1'
language:
- iso: eng
oa: '1'
page: '045003'
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: TRR 142
- _id: '55'
name: TRR 142 - Project Area B
- _id: '69'
name: TRR 142 - Subproject B4
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: 'Journal of Physics: Materials'
publication_identifier:
eissn:
- 2515-7639
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: Potassium titanyl phosphate (KTP) quasiparticle energies and optical response
type: journal_article
user_id: '171'
volume: 2
year: '2019'
...
---
_id: '13900'
author:
- first_name: Xiaohong
full_name: Song, Xiaohong
last_name: Song
- first_name: Ruixin
full_name: Zuo, Ruixin
last_name: Zuo
- first_name: Shidong
full_name: Yang, Shidong
last_name: Yang
- first_name: Pengcheng
full_name: Li, Pengcheng
last_name: Li
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Weifeng
full_name: Yang, Weifeng
last_name: Yang
citation:
ama: Song X, Zuo R, Yang S, Li P, Meier T, Yang W. Attosecond temporal confinement
of interband excitation by intraband motion. Optics Express. 2019;27(3):2225-2234.
doi:10.1364/oe.27.002225
apa: Song, X., Zuo, R., Yang, S., Li, P., Meier, T., & Yang, W. (2019). Attosecond
temporal confinement of interband excitation by intraband motion. Optics Express,
27(3), 2225–2234. https://doi.org/10.1364/oe.27.002225
bibtex: '@article{Song_Zuo_Yang_Li_Meier_Yang_2019, title={Attosecond temporal confinement
of interband excitation by intraband motion}, volume={27}, DOI={10.1364/oe.27.002225},
number={3}, journal={Optics Express}, author={Song, Xiaohong and Zuo, Ruixin and
Yang, Shidong and Li, Pengcheng and Meier, Torsten and Yang, Weifeng}, year={2019},
pages={2225–2234} }'
chicago: 'Song, Xiaohong, Ruixin Zuo, Shidong Yang, Pengcheng Li, Torsten Meier,
and Weifeng Yang. “Attosecond Temporal Confinement of Interband Excitation by
Intraband Motion.” Optics Express 27, no. 3 (2019): 2225–34. https://doi.org/10.1364/oe.27.002225.'
ieee: 'X. Song, R. Zuo, S. Yang, P. Li, T. Meier, and W. Yang, “Attosecond temporal
confinement of interband excitation by intraband motion,” Optics Express,
vol. 27, no. 3, pp. 2225–2234, 2019, doi: 10.1364/oe.27.002225.'
mla: Song, Xiaohong, et al. “Attosecond Temporal Confinement of Interband Excitation
by Intraband Motion.” Optics Express, vol. 27, no. 3, 2019, pp. 2225–34,
doi:10.1364/oe.27.002225.
short: X. Song, R. Zuo, S. Yang, P. Li, T. Meier, W. Yang, Optics Express 27 (2019)
2225–2234.
date_created: 2019-10-18T07:35:35Z
date_updated: 2023-04-21T11:27:40Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '35'
- _id: '429'
doi: 10.1364/oe.27.002225
intvolume: ' 27'
issue: '3'
language:
- iso: eng
page: 2225-2234
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '64'
name: TRR 142 - Subproject A7
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
status: public
title: Attosecond temporal confinement of interband excitation by intraband motion
type: journal_article
user_id: '16199'
volume: 27
year: '2019'
...
---
_id: '13283'
article_number: '045308'
author:
- first_name: Huynh Thanh
full_name: Duc, Huynh Thanh
last_name: Duc
- first_name: Cong
full_name: Ngo, Cong
last_name: Ngo
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: Duc HT, Ngo C, Meier T. Ballistic photocurrents in semiconductor quantum wells
caused by the excitation of asymmetric excitons. Physical Review B. 2019;100(4).
doi:10.1103/physrevb.100.045308
apa: Duc, H. T., Ngo, C., & Meier, T. (2019). Ballistic photocurrents in semiconductor
quantum wells caused by the excitation of asymmetric excitons. Physical Review
B, 100(4), Article 045308. https://doi.org/10.1103/physrevb.100.045308
bibtex: '@article{Duc_Ngo_Meier_2019, title={Ballistic photocurrents in semiconductor
quantum wells caused by the excitation of asymmetric excitons}, volume={100},
DOI={10.1103/physrevb.100.045308},
number={4045308}, journal={Physical Review B}, author={Duc, Huynh Thanh and Ngo,
Cong and Meier, Torsten}, year={2019} }'
chicago: Duc, Huynh Thanh, Cong Ngo, and Torsten Meier. “Ballistic Photocurrents
in Semiconductor Quantum Wells Caused by the Excitation of Asymmetric Excitons.”
Physical Review B 100, no. 4 (2019). https://doi.org/10.1103/physrevb.100.045308.
ieee: 'H. T. Duc, C. Ngo, and T. Meier, “Ballistic photocurrents in semiconductor
quantum wells caused by the excitation of asymmetric excitons,” Physical Review
B, vol. 100, no. 4, Art. no. 045308, 2019, doi: 10.1103/physrevb.100.045308.'
mla: Duc, Huynh Thanh, et al. “Ballistic Photocurrents in Semiconductor Quantum
Wells Caused by the Excitation of Asymmetric Excitons.” Physical Review B,
vol. 100, no. 4, 045308, 2019, doi:10.1103/physrevb.100.045308.
short: H.T. Duc, C. Ngo, T. Meier, Physical Review B 100 (2019).
date_created: 2019-09-18T14:13:07Z
date_updated: 2023-04-21T11:27:14Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '35'
doi: 10.1103/physrevb.100.045308
intvolume: ' 100'
issue: '4'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
status: public
title: Ballistic photocurrents in semiconductor quantum wells caused by the excitation
of asymmetric excitons
type: journal_article
user_id: '16199'
volume: 100
year: '2019'
...
---
_id: '13429'
author:
- first_name: Adriana
full_name: Bocchini, Adriana
id: '58349'
last_name: Bocchini
orcid: https://orcid.org/0000-0002-2134-3075
- first_name: Sergej
full_name: Neufeld, Sergej
id: '23261'
last_name: Neufeld
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
citation:
ama: 'Bocchini A, Neufeld S, Gerstmann U, Schmidt WG. Oxygen and potassium vacancies
in KTP calculated from first principles. Journal of Physics: Condensed Matter.
2019;31:385401. doi:10.1088/1361-648x/ab295c'
apa: 'Bocchini, A., Neufeld, S., Gerstmann, U., & Schmidt, W. G. (2019). Oxygen
and potassium vacancies in KTP calculated from first principles. Journal of
Physics: Condensed Matter, 31, 385401. https://doi.org/10.1088/1361-648x/ab295c'
bibtex: '@article{Bocchini_Neufeld_Gerstmann_Schmidt_2019, title={Oxygen and potassium
vacancies in KTP calculated from first principles}, volume={31}, DOI={10.1088/1361-648x/ab295c},
journal={Journal of Physics: Condensed Matter}, author={Bocchini, Adriana and
Neufeld, Sergej and Gerstmann, Uwe and Schmidt, Wolf Gero}, year={2019}, pages={385401}
}'
chicago: 'Bocchini, Adriana, Sergej Neufeld, Uwe Gerstmann, and Wolf Gero Schmidt.
“Oxygen and Potassium Vacancies in KTP Calculated from First Principles.” Journal
of Physics: Condensed Matter 31 (2019): 385401. https://doi.org/10.1088/1361-648x/ab295c.'
ieee: 'A. Bocchini, S. Neufeld, U. Gerstmann, and W. G. Schmidt, “Oxygen and potassium
vacancies in KTP calculated from first principles,” Journal of Physics: Condensed
Matter, vol. 31, p. 385401, 2019, doi: 10.1088/1361-648x/ab295c.'
mla: 'Bocchini, Adriana, et al. “Oxygen and Potassium Vacancies in KTP Calculated
from First Principles.” Journal of Physics: Condensed Matter, vol. 31,
2019, p. 385401, doi:10.1088/1361-648x/ab295c.'
short: 'A. Bocchini, S. Neufeld, U. Gerstmann, W.G. Schmidt, Journal of Physics:
Condensed Matter 31 (2019) 385401.'
date_created: 2019-09-20T12:22:27Z
date_updated: 2023-04-21T11:37:48Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1088/1361-648x/ab295c
intvolume: ' 31'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: '385401'
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '69'
name: 'TRR 142 - B4: TRR 142 - Subproject B4'
publication: 'Journal of Physics: Condensed Matter'
publication_identifier:
issn:
- 0953-8984
- 1361-648X
publication_status: published
status: public
title: Oxygen and potassium vacancies in KTP calculated from first principles
type: journal_article
user_id: '171'
volume: 31
year: '2019'
...
---
_id: '21'
abstract:
- lang: eng
text: "We address the general mathematical problem of computing the inverse p-th\r\nroot
of a given matrix in an efficient way. A new method to construct iteration\r\nfunctions
that allow calculating arbitrary p-th roots and their inverses of\r\nsymmetric
positive definite matrices is presented. We show that the order of\r\nconvergence
is at least quadratic and that adaptively adjusting a parameter q\r\nalways leads
to an even faster convergence. In this way, a better performance\r\nthan with
previously known iteration schemes is achieved. The efficiency of the\r\niterative
functions is demonstrated for various matrices with different\r\ndensities, condition
numbers and spectral radii."
author:
- first_name: Dorothee
full_name: Richters, Dorothee
last_name: Richters
- first_name: Michael
full_name: Lass, Michael
id: '24135'
last_name: Lass
orcid: 0000-0002-5708-7632
- first_name: Andrea
full_name: Walther, Andrea
last_name: Walther
- first_name: Christian
full_name: Plessl, Christian
id: '16153'
last_name: Plessl
orcid: 0000-0001-5728-9982
- first_name: Thomas
full_name: Kühne, Thomas
id: '49079'
last_name: Kühne
citation:
ama: Richters D, Lass M, Walther A, Plessl C, Kühne T. A General Algorithm to Calculate
the Inverse Principal p-th Root of Symmetric Positive Definite Matrices. Communications
in Computational Physics. 2019;25(2):564-585. doi:10.4208/cicp.OA-2018-0053
apa: Richters, D., Lass, M., Walther, A., Plessl, C., & Kühne, T. (2019). A
General Algorithm to Calculate the Inverse Principal p-th Root of Symmetric Positive
Definite Matrices. Communications in Computational Physics, 25(2),
564–585. https://doi.org/10.4208/cicp.OA-2018-0053
bibtex: '@article{Richters_Lass_Walther_Plessl_Kühne_2019, title={A General Algorithm
to Calculate the Inverse Principal p-th Root of Symmetric Positive Definite Matrices},
volume={25}, DOI={10.4208/cicp.OA-2018-0053},
number={2}, journal={Communications in Computational Physics}, publisher={Global
Science Press}, author={Richters, Dorothee and Lass, Michael and Walther, Andrea
and Plessl, Christian and Kühne, Thomas}, year={2019}, pages={564–585} }'
chicago: 'Richters, Dorothee, Michael Lass, Andrea Walther, Christian Plessl, and
Thomas Kühne. “A General Algorithm to Calculate the Inverse Principal P-Th Root
of Symmetric Positive Definite Matrices.” Communications in Computational Physics
25, no. 2 (2019): 564–85. https://doi.org/10.4208/cicp.OA-2018-0053.'
ieee: 'D. Richters, M. Lass, A. Walther, C. Plessl, and T. Kühne, “A General Algorithm
to Calculate the Inverse Principal p-th Root of Symmetric Positive Definite Matrices,”
Communications in Computational Physics, vol. 25, no. 2, pp. 564–585, 2019,
doi: 10.4208/cicp.OA-2018-0053.'
mla: Richters, Dorothee, et al. “A General Algorithm to Calculate the Inverse Principal
P-Th Root of Symmetric Positive Definite Matrices.” Communications in Computational
Physics, vol. 25, no. 2, Global Science Press, 2019, pp. 564–85, doi:10.4208/cicp.OA-2018-0053.
short: D. Richters, M. Lass, A. Walther, C. Plessl, T. Kühne, Communications in
Computational Physics 25 (2019) 564–585.
date_created: 2017-07-25T14:48:26Z
date_updated: 2023-09-26T11:45:02Z
department:
- _id: '27'
- _id: '518'
- _id: '304'
- _id: '104'
doi: 10.4208/cicp.OA-2018-0053
external_id:
arxiv:
- '1703.02456'
intvolume: ' 25'
issue: '2'
language:
- iso: eng
page: 564-585
project:
- _id: '32'
grant_number: PL 595/2-1 / 320898746
name: Performance and Efficiency in HPC with Custom Computing
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Communications in Computational Physics
publisher: Global Science Press
quality_controlled: '1'
status: public
title: A General Algorithm to Calculate the Inverse Principal p-th Root of Symmetric
Positive Definite Matrices
type: journal_article
user_id: '15278'
volume: 25
year: '2019'
...
---
_id: '13436'
author:
- first_name: Alan Adam
full_name: Camberg, Alan Adam
id: '60544'
last_name: Camberg
- first_name: Ina
full_name: Stratmann, Ina
last_name: Stratmann
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Camberg AA, Stratmann I, Tröster T. TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED
APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES.
In: Technologies for Economical and Functional Lightweight Design. ; 2019.
doi:10.1007/978-3-662-58206-0_12'
apa: Camberg, A. A., Stratmann, I., & Tröster, T. (2019). TAILORED STACKED HYBRIDS
– AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN
LIGHTWEIGHT CAR BODY STRUCTURES. In Technologies for economical and functional
lightweight design. https://doi.org/10.1007/978-3-662-58206-0_12
bibtex: '@inbook{Camberg_Stratmann_Tröster_2019, place={Berlin, Heidelberg}, title={TAILORED
STACKED HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER
IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES}, DOI={10.1007/978-3-662-58206-0_12},
booktitle={Technologies for economical and functional lightweight design}, author={Camberg,
Alan Adam and Stratmann, Ina and Tröster, Thomas}, year={2019} }'
chicago: Camberg, Alan Adam, Ina Stratmann, and Thomas Tröster. “TAILORED STACKED
HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT
IN LIGHTWEIGHT CAR BODY STRUCTURES.” In Technologies for Economical and Functional
Lightweight Design. Berlin, Heidelberg, 2019. https://doi.org/10.1007/978-3-662-58206-0_12.
ieee: A. A. Camberg, I. Stratmann, and T. Tröster, “TAILORED STACKED HYBRIDS – AN
OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT
CAR BODY STRUCTURES,” in Technologies for economical and functional lightweight
design, Berlin, Heidelberg, 2019.
mla: Camberg, Alan Adam, et al. “TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED
APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES.”
Technologies for Economical and Functional Lightweight Design, 2019, doi:10.1007/978-3-662-58206-0_12.
short: 'A.A. Camberg, I. Stratmann, T. Tröster, in: Technologies for Economical
and Functional Lightweight Design, Berlin, Heidelberg, 2019.'
date_created: 2019-09-22T17:33:23Z
date_updated: 2025-06-06T08:43:04Z
department:
- _id: '149'
- _id: '9'
- _id: '321'
doi: 10.1007/978-3-662-58206-0_12
language:
- iso: eng
place: Berlin, Heidelberg
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Technologies for economical and functional lightweight design
publication_identifier:
isbn:
- '9783662582053'
- '9783662582060'
issn:
- 2524-4787
- 2524-4795
publication_status: published
status: public
title: TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN
FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES
type: book_chapter
user_id: '15952'
year: '2019'
...
---
_id: '15739'
author:
- first_name: Sam
full_name: Azadi, Sam
last_name: Azadi
- first_name: Thomas D.
full_name: Kühne, Thomas D.
last_name: Kühne
citation:
ama: Azadi S, Kühne TD. Unconventional phase III of high-pressure solid hydrogen.
Physical Review B. 2019;100(15):155103-155109. doi:10.1103/physrevb.100.155103
apa: Azadi, S., & Kühne, T. D. (2019). Unconventional phase III of high-pressure
solid hydrogen. Physical Review B, 100(15), 155103–155109. https://doi.org/10.1103/physrevb.100.155103
bibtex: '@article{Azadi_Kühne_2019, title={Unconventional phase III of high-pressure
solid hydrogen}, volume={100}, DOI={10.1103/physrevb.100.155103},
number={15}, journal={Physical Review B}, author={Azadi, Sam and Kühne, Thomas
D.}, year={2019}, pages={155103–155109} }'
chicago: 'Azadi, Sam, and Thomas D. Kühne. “Unconventional Phase III of High-Pressure
Solid Hydrogen.” Physical Review B 100, no. 15 (2019): 155103–9. https://doi.org/10.1103/physrevb.100.155103.'
ieee: 'S. Azadi and T. D. Kühne, “Unconventional phase III of high-pressure solid
hydrogen,” Physical Review B, vol. 100, no. 15, pp. 155103–155109, 2019,
doi: 10.1103/physrevb.100.155103.'
mla: Azadi, Sam, and Thomas D. Kühne. “Unconventional Phase III of High-Pressure
Solid Hydrogen.” Physical Review B, vol. 100, no. 15, 2019, pp. 155103–09,
doi:10.1103/physrevb.100.155103.
short: S. Azadi, T.D. Kühne, Physical Review B 100 (2019) 155103–155109.
date_created: 2020-01-30T13:20:33Z
date_updated: 2026-02-23T12:18:18Z
department:
- _id: '304'
doi: 10.1103/physrevb.100.155103
intvolume: ' 100'
issue: '15'
language:
- iso: eng
page: 155103-155109
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
status: public
title: Unconventional phase III of high-pressure solid hydrogen
type: journal_article
user_id: '14972'
volume: 100
year: '2019'
...
---
_id: '58921'
alternative_title:
- high-performance distributed memory programming on reconfigurable hardware
author:
- first_name: Tiziano
full_name: De Matteis, Tiziano
last_name: De Matteis
- first_name: Johannes
full_name: de Fine Licht, Johannes
last_name: de Fine Licht
- first_name: Jakub
full_name: Beránek, Jakub
last_name: Beránek
- first_name: Torsten
full_name: Hoefler, Torsten
last_name: Hoefler
citation:
ama: 'De Matteis T, de Fine Licht J, Beránek J, Hoefler T. Streaming message interface.
In: Proceedings of the International Conference for High Performance Computing,
Networking, Storage and Analysis. ACM; 2019. doi:10.1145/3295500.3356201'
apa: De Matteis, T., de Fine Licht, J., Beránek, J., & Hoefler, T. (2019). Streaming
message interface. Proceedings of the International Conference for High Performance
Computing, Networking, Storage and Analysis. https://doi.org/10.1145/3295500.3356201
bibtex: '@inproceedings{De Matteis_de Fine Licht_Beránek_Hoefler_2019, title={Streaming
message interface}, DOI={10.1145/3295500.3356201},
booktitle={Proceedings of the International Conference for High Performance Computing,
Networking, Storage and Analysis}, publisher={ACM}, author={De Matteis, Tiziano
and de Fine Licht, Johannes and Beránek, Jakub and Hoefler, Torsten}, year={2019}
}'
chicago: De Matteis, Tiziano, Johannes de Fine Licht, Jakub Beránek, and Torsten
Hoefler. “Streaming Message Interface.” In Proceedings of the International
Conference for High Performance Computing, Networking, Storage and Analysis.
ACM, 2019. https://doi.org/10.1145/3295500.3356201.
ieee: 'T. De Matteis, J. de Fine Licht, J. Beránek, and T. Hoefler, “Streaming message
interface,” 2019, doi: 10.1145/3295500.3356201.'
mla: De Matteis, Tiziano, et al. “Streaming Message Interface.” Proceedings of
the International Conference for High Performance Computing, Networking, Storage
and Analysis, ACM, 2019, doi:10.1145/3295500.3356201.
short: 'T. De Matteis, J. de Fine Licht, J. Beránek, T. Hoefler, in: Proceedings
of the International Conference for High Performance Computing, Networking, Storage
and Analysis, ACM, 2019.'
date_created: 2025-03-06T10:46:14Z
date_updated: 2025-03-06T10:48:08Z
doi: 10.1145/3295500.3356201
language:
- iso: eng
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Proceedings of the International Conference for High Performance Computing,
Networking, Storage and Analysis
publication_status: published
publisher: ACM
status: public
title: Streaming message interface
type: conference
user_id: '3145'
year: '2019'
...
---
_id: '15851'
article_number: '123008'
author:
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Yaroslav Y
full_name: Kartashov, Yaroslav Y
last_name: Kartashov
- first_name: Tingge
full_name: Gao, Tingge
last_name: Gao
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Ma X, Kartashov YY, Gao T, Schumacher S. Controllable high-speed polariton
waves in a PT-symmetric lattice. New Journal of Physics. 2019;21. doi:10.1088/1367-2630/ab5a9b
apa: Ma, X., Kartashov, Y. Y., Gao, T., & Schumacher, S. (2019). Controllable
high-speed polariton waves in a PT-symmetric lattice. New Journal of Physics,
21, Article 123008. https://doi.org/10.1088/1367-2630/ab5a9b
bibtex: '@article{Ma_Kartashov_Gao_Schumacher_2019, title={Controllable high-speed
polariton waves in a PT-symmetric lattice}, volume={21}, DOI={10.1088/1367-2630/ab5a9b},
number={123008}, journal={New Journal of Physics}, author={Ma, Xuekai and Kartashov,
Yaroslav Y and Gao, Tingge and Schumacher, Stefan}, year={2019} }'
chicago: Ma, Xuekai, Yaroslav Y Kartashov, Tingge Gao, and Stefan Schumacher. “Controllable
High-Speed Polariton Waves in a PT-Symmetric Lattice.” New Journal of Physics
21 (2019). https://doi.org/10.1088/1367-2630/ab5a9b.
ieee: 'X. Ma, Y. Y. Kartashov, T. Gao, and S. Schumacher, “Controllable high-speed
polariton waves in a PT-symmetric lattice,” New Journal of Physics, vol.
21, Art. no. 123008, 2019, doi: 10.1088/1367-2630/ab5a9b.'
mla: Ma, Xuekai, et al. “Controllable High-Speed Polariton Waves in a PT-Symmetric
Lattice.” New Journal of Physics, vol. 21, 123008, 2019, doi:10.1088/1367-2630/ab5a9b.
short: X. Ma, Y.Y. Kartashov, T. Gao, S. Schumacher, New Journal of Physics 21 (2019).
date_created: 2020-02-10T11:35:57Z
date_updated: 2025-12-05T13:53:04Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '230'
- _id: '35'
- _id: '27'
doi: 10.1088/1367-2630/ab5a9b
intvolume: ' 21'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: New Journal of Physics
publication_identifier:
issn:
- 1367-2630
publication_status: published
status: public
title: Controllable high-speed polariton waves in a PT-symmetric lattice
type: journal_article
user_id: '16199'
volume: 21
year: '2019'
...
---
_id: '13340'
abstract:
- lang: eng
text: "Spontaneous formation of transverse patterns is ubiquitous in nonlinear\r\ndynamical
systems of all kinds. An aspect of particular interest is the active\r\ncontrol
of such patterns. In nonlinear optical systems this can be used for\r\nall-optical
switching with transistor-like performance, for example realized\r\nwith polaritons
in a planar quantum-well semiconductor microcavity. Here we\r\nfocus on a specific
configuration which takes advantage of the intricate\r\npolarization dependencies
in the interacting optically driven polariton system.\r\nBesides detailed numerical
simulations of the coupled light-field exciton\r\ndynamics, in the present paper
we focus on the derivation of a simplified\r\npopulation competition model giving
detailed insight into the underlying\r\nmechanisms from a nonlinear dynamical
systems perspective. We show that such a\r\nmodel takes the form of a generalized
Lotka-Volterra system for two competing\r\npopulations explicitly including a
source term that enables external control.\r\nWe present a comprehensive analysis
both of the existence and stability of\r\nstationary states in the parameter space
spanned by spatial anisotropy and\r\nexternal control strength. We also construct
phase boundaries in non-trivial\r\nregions and characterize emerging bifurcations.
The population competition\r\nmodel reproduces all key features of the switching
observed in full numerical\r\nsimulations of the rather complex semiconductor
system and at the same time is\r\nsimple enough for a fully analytical understanding
of the system dynamics."
author:
- first_name: Matthias
full_name: Pukrop, Matthias
last_name: Pukrop
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Pukrop M, Schumacher S. Externally Controlled Lotka-Volterra Dynamics in a
Linearly Polarized Polariton Fluid. arXiv:190312534. Published online
2019.
apa: Pukrop, M., & Schumacher, S. (2019). Externally Controlled Lotka-Volterra
Dynamics in a Linearly Polarized Polariton Fluid. In arXiv:1903.12534.
bibtex: '@article{Pukrop_Schumacher_2019, title={Externally Controlled Lotka-Volterra
Dynamics in a Linearly Polarized Polariton Fluid}, journal={arXiv:1903.12534},
author={Pukrop, Matthias and Schumacher, Stefan}, year={2019} }'
chicago: Pukrop, Matthias, and Stefan Schumacher. “Externally Controlled Lotka-Volterra
Dynamics in a Linearly Polarized Polariton Fluid.” ArXiv:1903.12534, 2019.
ieee: M. Pukrop and S. Schumacher, “Externally Controlled Lotka-Volterra Dynamics
in a Linearly Polarized Polariton Fluid,” arXiv:1903.12534. 2019.
mla: Pukrop, Matthias, and Stefan Schumacher. “Externally Controlled Lotka-Volterra
Dynamics in a Linearly Polarized Polariton Fluid.” ArXiv:1903.12534, 2019.
short: M. Pukrop, S. Schumacher, ArXiv:1903.12534 (2019).
date_created: 2019-09-19T13:18:47Z
date_updated: 2025-12-05T14:30:36Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '230'
- _id: '35'
- _id: '27'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: arXiv:1903.12534
status: public
title: Externally Controlled Lotka-Volterra Dynamics in a Linearly Polarized Polariton
Fluid
type: preprint
user_id: '16199'
year: '2019'
...
---
_id: '13347'
abstract:
- lang: eng
text: "<div>\r\n\t\t\t<div>\r\n\t\t\t\t<div>\r\n\t\t\t\t\t<p>Molecular
doping in conjugated polymers is a crucial process for their application in organic\r\nphotovoltaics
and optoelectronics. In the present work we theoretically investigate p-type molecu-\r\nlar
doping in a series of (poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b”]dithiophene)-alt-\r\n4,7-(2,1,3-benzothiadiazole)]
(PCPDT-BT) conjugated oligomers with different lengths and three\r\nwidely-used
dopants with different electron affinities, namely F4TCNQ, F6TCNNQ, and CN6-CP.\r\nWe
study in detail the molecular geometry of possible oligomer-dopant complexes and
its influence\r\non the doping mechanisms and electronic system properties. We
find that the mechanisms of dop-\r\ning and charge transfer observed sensitively
depend on the specific geometry of the oligomer-dopant\r\ncomplexes. For a given
complex different geometries may exist, some of which show transfer of\r\nan entire
electron from the oligomer chain onto the dopant molecule resulting in an integer-charge\r\ntransfer
complex, leaving the system in a ground state with broken spin symmetry. In other
ge-\r\nometries merely hybridization of oligomer and dopant frontier orbitals
occurs with partial charge\r\ntransfer but spin-symmetric ground state. Considering
the resulting electronic density of states both\r\ncases may well contribute to
an increased electrical conductivity of corresponding film samples while\r\nthe
underlying physical mechanisms are entirely different.\r\n</p>\r\n\t\t\t\t</div>\r\n\t\t\t</div>\r\n\t\t</div>"
author:
- first_name: Chuan-Ding
full_name: Dong, Chuan-Ding
id: '67188'
last_name: Dong
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: 'Dong C-D, Schumacher S. Molecular Doping of PCPDT-BT Copolymers: Comparison
of Molecular Complexes with and Without Integer Charge Transfer. Published online
2019.'
apa: 'Dong, C.-D., & Schumacher, S. (2019). Molecular Doping of PCPDT-BT
Copolymers: Comparison of Molecular Complexes with and Without Integer Charge
Transfer.'
bibtex: '@article{Dong_Schumacher_2019, title={Molecular Doping of PCPDT-BT Copolymers:
Comparison of Molecular Complexes with and Without Integer Charge Transfer}, author={Dong,
Chuan-Ding and Schumacher, Stefan}, year={2019} }'
chicago: 'Dong, Chuan-Ding, and Stefan Schumacher. “Molecular Doping of PCPDT-BT
Copolymers: Comparison of Molecular Complexes with and Without Integer Charge
Transfer,” 2019.'
ieee: 'C.-D. Dong and S. Schumacher, “Molecular Doping of PCPDT-BT Copolymers: Comparison
of Molecular Complexes with and Without Integer Charge Transfer.” 2019.'
mla: 'Dong, Chuan-Ding, and Stefan Schumacher. Molecular Doping of PCPDT-BT Copolymers:
Comparison of Molecular Complexes with and Without Integer Charge Transfer.
2019.'
short: C.-D. Dong, S. Schumacher, (2019).
date_created: 2019-09-19T13:44:34Z
date_updated: 2025-12-05T14:31:11Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '230'
- _id: '35'
- _id: '27'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication_status: published
status: public
title: 'Molecular Doping of PCPDT-BT Copolymers: Comparison of Molecular Complexes
with and Without Integer Charge Transfer'
type: preprint
user_id: '16199'
year: '2019'
...
---
_id: '13343'
author:
- first_name: Joachim
full_name: Vollbrecht, Joachim
last_name: Vollbrecht
- first_name: Christian
full_name: Wiebeler, Christian
last_name: Wiebeler
- first_name: Harald
full_name: Bock, Harald
last_name: Bock
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: 'Vollbrecht J, Wiebeler C, Bock H, Schumacher S, Kitzerow H-S. Curved Polar
Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric Homologs:
Photophysical and Optoelectronic Analysis. The Journal of Physical Chemistry
C. 2019;123(7):4483-4492. doi:10.1021/acs.jpcc.8b10730'
apa: 'Vollbrecht, J., Wiebeler, C., Bock, H., Schumacher, S., & Kitzerow, H.-S.
(2019). Curved Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric
Homologs: Photophysical and Optoelectronic Analysis. The Journal of Physical
Chemistry C, 123(7), 4483–4492. https://doi.org/10.1021/acs.jpcc.8b10730'
bibtex: '@article{Vollbrecht_Wiebeler_Bock_Schumacher_Kitzerow_2019, title={Curved
Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric Homologs:
Photophysical and Optoelectronic Analysis}, volume={123}, DOI={10.1021/acs.jpcc.8b10730},
number={7}, journal={The Journal of Physical Chemistry C}, author={Vollbrecht,
Joachim and Wiebeler, Christian and Bock, Harald and Schumacher, Stefan and Kitzerow,
Heinz-Siegfried}, year={2019}, pages={4483–4492} }'
chicago: 'Vollbrecht, Joachim, Christian Wiebeler, Harald Bock, Stefan Schumacher,
and Heinz-Siegfried Kitzerow. “Curved Polar Dibenzocoronene Esters and Imides
versus Their Planar Centrosymmetric Homologs: Photophysical and Optoelectronic
Analysis.” The Journal of Physical Chemistry C 123, no. 7 (2019): 4483–92.
https://doi.org/10.1021/acs.jpcc.8b10730.'
ieee: 'J. Vollbrecht, C. Wiebeler, H. Bock, S. Schumacher, and H.-S. Kitzerow, “Curved
Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric Homologs:
Photophysical and Optoelectronic Analysis,” The Journal of Physical Chemistry
C, vol. 123, no. 7, pp. 4483–4492, 2019, doi: 10.1021/acs.jpcc.8b10730.'
mla: 'Vollbrecht, Joachim, et al. “Curved Polar Dibenzocoronene Esters and Imides
versus Their Planar Centrosymmetric Homologs: Photophysical and Optoelectronic
Analysis.” The Journal of Physical Chemistry C, vol. 123, no. 7, 2019,
pp. 4483–92, doi:10.1021/acs.jpcc.8b10730.'
short: J. Vollbrecht, C. Wiebeler, H. Bock, S. Schumacher, H.-S. Kitzerow, The Journal
of Physical Chemistry C 123 (2019) 4483–4492.
date_created: 2019-09-19T13:36:01Z
date_updated: 2025-12-05T14:29:56Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '313'
- _id: '230'
- _id: '35'
- _id: '27'
- _id: '2'
doi: 10.1021/acs.jpcc.8b10730
intvolume: ' 123'
issue: '7'
language:
- iso: eng
page: 4483-4492
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: The Journal of Physical Chemistry C
publication_identifier:
issn:
- 1932-7447
- 1932-7455
publication_status: published
status: public
title: 'Curved Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric
Homologs: Photophysical and Optoelectronic Analysis'
type: journal_article
user_id: '16199'
volume: 123
year: '2019'
...
---
_id: '19524'
abstract:
- lang: eng
text: "Object ranking is an important problem in the realm of preference learning.\r\nOn
the basis of training data in the form of a set of rankings of objects,\r\nwhich
are typically represented as feature vectors, the goal is to learn a\r\nranking
function that predicts a linear order of any new set of objects.\r\nCurrent approaches
commonly focus on ranking by scoring, i.e., on learning an\r\nunderlying latent
utility function that seeks to capture the inherent utility\r\nof each object.
These approaches, however, are not able to take possible\r\neffects of context-dependence
into account, where context-dependence means that\r\nthe utility or usefulness
of an object may also depend on what other objects\r\nare available as alternatives.
In this paper, we formalize the problem of\r\ncontext-dependent ranking and present
two general approaches based on two\r\nnatural representations of context-dependent
ranking functions. Both approaches\r\nare instantiated by means of appropriate
neural network architectures, which\r\nare evaluated on suitable benchmark task."
author:
- first_name: Karlson
full_name: Pfannschmidt, Karlson
last_name: Pfannschmidt
- first_name: Pritha
full_name: Gupta, Pritha
last_name: Gupta
- first_name: Eyke
full_name: Hüllermeier, Eyke
last_name: Hüllermeier
citation:
ama: Pfannschmidt K, Gupta P, Hüllermeier E. Deep Architectures for Learning Context-dependent
Ranking Functions. arXiv:180305796. 2018.
apa: Pfannschmidt, K., Gupta, P., & Hüllermeier, E. (2018). Deep Architectures
for Learning Context-dependent Ranking Functions. ArXiv:1803.05796.
bibtex: '@article{Pfannschmidt_Gupta_Hüllermeier_2018, title={Deep Architectures
for Learning Context-dependent Ranking Functions}, journal={arXiv:1803.05796},
author={Pfannschmidt, Karlson and Gupta, Pritha and Hüllermeier, Eyke}, year={2018}
}'
chicago: Pfannschmidt, Karlson, Pritha Gupta, and Eyke Hüllermeier. “Deep Architectures
for Learning Context-Dependent Ranking Functions.” ArXiv:1803.05796, 2018.
ieee: K. Pfannschmidt, P. Gupta, and E. Hüllermeier, “Deep Architectures for Learning
Context-dependent Ranking Functions,” arXiv:1803.05796. 2018.
mla: Pfannschmidt, Karlson, et al. “Deep Architectures for Learning Context-Dependent
Ranking Functions.” ArXiv:1803.05796, 2018.
short: K. Pfannschmidt, P. Gupta, E. Hüllermeier, ArXiv:1803.05796 (2018).
date_created: 2020-09-17T10:53:39Z
date_updated: 2022-01-06T06:54:06Z
department:
- _id: '7'
- _id: '355'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: arXiv:1803.05796
status: public
title: Deep Architectures for Learning Context-dependent Ranking Functions
type: preprint
user_id: '13472'
year: '2018'
...
---
_id: '19868'
author:
- first_name: Alan Adam
full_name: Camberg, Alan Adam
id: '60544'
last_name: Camberg
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
- first_name: Nikolay
full_name: Sotirov, Nikolay
last_name: Sotirov
- first_name: Jörn
full_name: Tölle, Jörn
last_name: Tölle
- first_name: Friedrich
full_name: Bohner, Friedrich
last_name: Bohner
citation:
ama: 'Camberg AA, Tröster T, Sotirov N, Tölle J, Bohner F. Investigation of ductility
and damage characteristics of EN AW-5182 H18 at non-isothermal forming conditions.
In: Materials Science and Engineering (MSE) Congress 2018. Darmstadt; 2018.'
apa: Camberg, A. A., Tröster, T., Sotirov, N., Tölle, J., & Bohner, F. (2018).
Investigation of ductility and damage characteristics of EN AW-5182 H18 at non-isothermal
forming conditions. In Materials Science and Engineering (MSE) Congress 2018.
Darmstadt.
bibtex: '@inproceedings{Camberg_Tröster_Sotirov_Tölle_Bohner_2018, place={Darmstadt},
title={Investigation of ductility and damage characteristics of EN AW-5182 H18
at non-isothermal forming conditions}, booktitle={Materials Science and Engineering
(MSE) Congress 2018}, author={Camberg, Alan Adam and Tröster, Thomas and Sotirov,
Nikolay and Tölle, Jörn and Bohner, Friedrich}, year={2018} }'
chicago: Camberg, Alan Adam, Thomas Tröster, Nikolay Sotirov, Jörn Tölle, and Friedrich
Bohner. “Investigation of Ductility and Damage Characteristics of EN AW-5182 H18
at Non-Isothermal Forming Conditions.” In Materials Science and Engineering
(MSE) Congress 2018. Darmstadt, 2018.
ieee: A. A. Camberg, T. Tröster, N. Sotirov, J. Tölle, and F. Bohner, “Investigation
of ductility and damage characteristics of EN AW-5182 H18 at non-isothermal forming
conditions,” in Materials Science and Engineering (MSE) Congress 2018,
Darmstadt, 2018.
mla: Camberg, Alan Adam, et al. “Investigation of Ductility and Damage Characteristics
of EN AW-5182 H18 at Non-Isothermal Forming Conditions.” Materials Science
and Engineering (MSE) Congress 2018, 2018.
short: 'A.A. Camberg, T. Tröster, N. Sotirov, J. Tölle, F. Bohner, in: Materials
Science and Engineering (MSE) Congress 2018, Darmstadt, 2018.'
conference:
end_date: 2018-09-27
location: Darmstadt
name: Materials Science and Engineering (MSE) Congress 2018
start_date: 2018-09-25
date_created: 2020-10-04T19:23:56Z
date_updated: 2022-01-06T06:54:14Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
language:
- iso: eng
place: Darmstadt
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Materials Science and Engineering (MSE) Congress 2018
publication_status: published
status: public
title: Investigation of ductility and damage characteristics of EN AW-5182 H18 at
non-isothermal forming conditions
type: conference_abstract
user_id: '60544'
year: '2018'
...
---
_id: '20'
abstract:
- lang: eng
text: "Approximate computing has shown to provide new ways to improve performance\r\nand
power consumption of error-resilient applications. While many of these\r\napplications
can be found in image processing, data classification or machine\r\nlearning,
we demonstrate its suitability to a problem from scientific\r\ncomputing. Utilizing
the self-correcting behavior of iterative algorithms, we\r\nshow that approximate
computing can be applied to the calculation of inverse\r\nmatrix p-th roots which
are required in many applications in scientific\r\ncomputing. Results show great
opportunities to reduce the computational effort\r\nand bandwidth required for
the execution of the discussed algorithm, especially\r\nwhen targeting special
accelerator hardware."
author:
- first_name: Michael
full_name: Lass, Michael
id: '24135'
last_name: Lass
orcid: 0000-0002-5708-7632
- first_name: Thomas
full_name: Kühne, Thomas
id: '49079'
last_name: Kühne
- first_name: Christian
full_name: Plessl, Christian
id: '16153'
last_name: Plessl
orcid: 0000-0001-5728-9982
citation:
ama: Lass M, Kühne T, Plessl C. Using Approximate Computing for the Calculation
of Inverse Matrix p-th Roots. Embedded Systems Letters. 2018;10(2):33-36.
doi:10.1109/LES.2017.2760923
apa: Lass, M., Kühne, T., & Plessl, C. (2018). Using Approximate Computing for
the Calculation of Inverse Matrix p-th Roots. Embedded Systems Letters,
10(2), 33–36. https://doi.org/10.1109/LES.2017.2760923
bibtex: '@article{Lass_Kühne_Plessl_2018, title={Using Approximate Computing for
the Calculation of Inverse Matrix p-th Roots}, volume={10}, DOI={10.1109/LES.2017.2760923},
number={2}, journal={Embedded Systems Letters}, publisher={IEEE}, author={Lass,
Michael and Kühne, Thomas and Plessl, Christian}, year={2018}, pages={33–36} }'
chicago: 'Lass, Michael, Thomas Kühne, and Christian Plessl. “Using Approximate
Computing for the Calculation of Inverse Matrix P-Th Roots.” Embedded Systems
Letters 10, no. 2 (2018): 33–36. https://doi.org/10.1109/LES.2017.2760923.'
ieee: M. Lass, T. Kühne, and C. Plessl, “Using Approximate Computing for the Calculation
of Inverse Matrix p-th Roots,” Embedded Systems Letters, vol. 10, no. 2,
pp. 33–36, 2018.
mla: Lass, Michael, et al. “Using Approximate Computing for the Calculation of Inverse
Matrix P-Th Roots.” Embedded Systems Letters, vol. 10, no. 2, IEEE, 2018,
pp. 33–36, doi:10.1109/LES.2017.2760923.
short: M. Lass, T. Kühne, C. Plessl, Embedded Systems Letters 10 (2018) 33–36.
date_created: 2017-07-25T14:41:08Z
date_updated: 2022-01-06T06:54:18Z
department:
- _id: '27'
- _id: '518'
- _id: '304'
doi: 10.1109/LES.2017.2760923
external_id:
arxiv:
- '1703.02283'
intvolume: ' 10'
issue: '2'
language:
- iso: eng
page: ' 33-36'
project:
- _id: '32'
grant_number: PL 595/2-1
name: Performance and Efficiency in HPC with Custom Computing
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Embedded Systems Letters
publication_identifier:
eissn:
- 1943-0671
issn:
- 1943-0663
publication_status: published
publisher: IEEE
status: public
title: Using Approximate Computing for the Calculation of Inverse Matrix p-th Roots
type: journal_article
user_id: '16153'
volume: 10
year: '2018'
...
---
_id: '3510'
abstract:
- lang: eng
text: Automated machine learning (AutoML) seeks to automatically select, compose,
and parametrize machine learning algorithms, so as to achieve optimal performance
on a given task (dataset). Although current approaches to AutoML have already
produced impressive results, the field is still far from mature, and new techniques
are still being developed. In this paper, we present ML-Plan, a new approach to
AutoML based on hierarchical planning. To highlight the potential of this approach,
we compare ML-Plan to the state-of-the-art frameworks Auto-WEKA, auto-sklearn,
and TPOT. In an extensive series of experiments, we show that ML-Plan is highly
competitive and often outperforms existing approaches.
article_type: original
author:
- first_name: Felix
full_name: Mohr, Felix
last_name: Mohr
- first_name: Marcel Dominik
full_name: Wever, Marcel Dominik
id: '33176'
last_name: Wever
orcid: ' https://orcid.org/0000-0001-9782-6818'
- first_name: Eyke
full_name: Hüllermeier, Eyke
id: '48129'
last_name: Hüllermeier
citation:
ama: 'Mohr F, Wever MD, Hüllermeier E. ML-Plan: Automated Machine Learning via Hierarchical
Planning. Machine Learning. Published online 2018:1495-1515. doi:10.1007/s10994-018-5735-z'
apa: 'Mohr, F., Wever, M. D., & Hüllermeier, E. (2018). ML-Plan: Automated Machine
Learning via Hierarchical Planning. Machine Learning, 1495–1515. https://doi.org/10.1007/s10994-018-5735-z'
bibtex: '@article{Mohr_Wever_Hüllermeier_2018, title={ML-Plan: Automated Machine
Learning via Hierarchical Planning}, DOI={10.1007/s10994-018-5735-z},
journal={Machine Learning}, publisher={Springer}, author={Mohr, Felix and Wever,
Marcel Dominik and Hüllermeier, Eyke}, year={2018}, pages={1495–1515} }'
chicago: 'Mohr, Felix, Marcel Dominik Wever, and Eyke Hüllermeier. “ML-Plan: Automated
Machine Learning via Hierarchical Planning.” Machine Learning, 2018, 1495–1515.
https://doi.org/10.1007/s10994-018-5735-z.'
ieee: 'F. Mohr, M. D. Wever, and E. Hüllermeier, “ML-Plan: Automated Machine Learning
via Hierarchical Planning,” Machine Learning, pp. 1495–1515, 2018, doi:
10.1007/s10994-018-5735-z.'
mla: 'Mohr, Felix, et al. “ML-Plan: Automated Machine Learning via Hierarchical
Planning.” Machine Learning, Springer, 2018, pp. 1495–515, doi:10.1007/s10994-018-5735-z.'
short: F. Mohr, M.D. Wever, E. Hüllermeier, Machine Learning (2018) 1495–1515.
conference:
end_date: 2018-09-14
location: Dublin, Ireland
name: European Conference on Machine Learning and Principles and Practice of Knowledge
Discovery in Databases
start_date: 2018-09-10
date_created: 2018-07-08T14:06:14Z
date_updated: 2022-01-06T06:59:21Z
ddc:
- '000'
department:
- _id: '355'
- _id: '34'
- _id: '7'
- _id: '26'
doi: 10.1007/s10994-018-5735-z
file:
- access_level: closed
content_type: application/pdf
creator: ups
date_created: 2018-11-02T15:32:16Z
date_updated: 2018-11-02T15:32:16Z
file_id: '5306'
file_name: ML-PlanAutomatedMachineLearnin.pdf
file_size: 1070937
relation: main_file
success: 1
file_date_updated: 2018-11-02T15:32:16Z
has_accepted_license: '1'
keyword:
- AutoML
- Hierarchical Planning
- HTN planning
- ML-Plan
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://rdcu.be/3Nc2
oa: '1'
page: 1495-1515
project:
- _id: '1'
name: SFB 901
- _id: '3'
name: SFB 901 - Project Area B
- _id: '10'
name: SFB 901 - Subproject B2
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Machine Learning
publication_identifier:
eissn:
- 1573-0565
issn:
- 0885-6125
publication_status: epub_ahead
publisher: Springer
status: public
title: 'ML-Plan: Automated Machine Learning via Hierarchical Planning'
type: journal_article
user_id: '5786'
year: '2018'
...