---
_id: '16959'
author:
- first_name: A.
  full_name: Ferreri, A.
  last_name: Ferreri
- first_name: P.
  full_name: Sharapova, P.
  last_name: Sharapova
- first_name: Kai Hong
  full_name: Luo, Kai Hong
  id: '36389'
  last_name: Luo
  orcid: 0000-0003-1008-4976
- first_name: H.
  full_name: Herrmann, H.
  last_name: Herrmann
- first_name: C.
  full_name: Silberhorn, C.
  last_name: Silberhorn
citation:
  ama: 'Ferreri A, Sharapova P, Luo KH, Herrmann H, Silberhorn C. Theoretical description
    of a multimode SU(1,1) interferometer. In: <i>Quantum Information and Measurement
    (QIM) V: Quantum Technologies</i>. ; 2019. doi:<a href="https://doi.org/10.1364/qim.2019.t5a.35">10.1364/qim.2019.t5a.35</a>'
  apa: 'Ferreri, A., Sharapova, P., Luo, K. H., Herrmann, H., &#38; Silberhorn, C.
    (2019). Theoretical description of a multimode SU(1,1) interferometer. <i>Quantum
    Information and Measurement (QIM) V: Quantum Technologies</i>. <a href="https://doi.org/10.1364/qim.2019.t5a.35">https://doi.org/10.1364/qim.2019.t5a.35</a>'
  bibtex: '@inproceedings{Ferreri_Sharapova_Luo_Herrmann_Silberhorn_2019, title={Theoretical
    description of a multimode SU(1,1) interferometer}, DOI={<a href="https://doi.org/10.1364/qim.2019.t5a.35">10.1364/qim.2019.t5a.35</a>},
    booktitle={Quantum Information and Measurement (QIM) V: Quantum Technologies},
    author={Ferreri, A. and Sharapova, P. and Luo, Kai Hong and Herrmann, H. and Silberhorn,
    C.}, year={2019} }'
  chicago: 'Ferreri, A., P. Sharapova, Kai Hong Luo, H. Herrmann, and C. Silberhorn.
    “Theoretical Description of a Multimode SU(1,1) Interferometer.” In <i>Quantum
    Information and Measurement (QIM) V: Quantum Technologies</i>, 2019. <a href="https://doi.org/10.1364/qim.2019.t5a.35">https://doi.org/10.1364/qim.2019.t5a.35</a>.'
  ieee: 'A. Ferreri, P. Sharapova, K. H. Luo, H. Herrmann, and C. Silberhorn, “Theoretical
    description of a multimode SU(1,1) interferometer,” 2019, doi: <a href="https://doi.org/10.1364/qim.2019.t5a.35">10.1364/qim.2019.t5a.35</a>.'
  mla: 'Ferreri, A., et al. “Theoretical Description of a Multimode SU(1,1) Interferometer.”
    <i>Quantum Information and Measurement (QIM) V: Quantum Technologies</i>, 2019,
    doi:<a href="https://doi.org/10.1364/qim.2019.t5a.35">10.1364/qim.2019.t5a.35</a>.'
  short: 'A. Ferreri, P. Sharapova, K.H. Luo, H. Herrmann, C. Silberhorn, in: Quantum
    Information and Measurement (QIM) V: Quantum Technologies, 2019.'
date_created: 2020-05-15T09:21:25Z
date_updated: 2023-02-10T16:01:51Z
doi: 10.1364/qim.2019.t5a.35
keyword:
- pc2-ressources
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: 'Quantum Information and Measurement (QIM) V: Quantum Technologies'
publication_identifier:
  isbn:
  - '9781943580569'
publication_status: published
status: public
title: Theoretical description of a multimode SU(1,1) interferometer
type: conference
user_id: '14931'
year: '2019'
...
---
_id: '16945'
author:
- first_name: Matvei
  full_name: Riabinin, Matvei
  last_name: Riabinin
- first_name: Polina
  full_name: Sharapova, Polina
  id: '60286'
  last_name: Sharapova
- first_name: Tim
  full_name: Bartley, Tim
  id: '49683'
  last_name: Bartley
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: Riabinin M, Sharapova P, Bartley T, Meier T. Generating two-mode squeezing
    and Schrödinger cat states with multimode measurement-induced nonlinearity. Published
    online 2019.
  apa: Riabinin, M., Sharapova, P., Bartley, T., &#38; Meier, T. (2019). <i>Generating
    two-mode squeezing and Schrödinger cat states with multimode measurement-induced
    nonlinearity</i>.
  bibtex: '@article{Riabinin_Sharapova_Bartley_Meier_2019, title={Generating two-mode
    squeezing and Schrödinger cat states with multimode measurement-induced nonlinearity},
    author={Riabinin, Matvei and Sharapova, Polina and Bartley, Tim and Meier, Torsten},
    year={2019} }'
  chicago: Riabinin, Matvei, Polina Sharapova, Tim Bartley, and Torsten Meier. “Generating
    Two-Mode Squeezing and Schrödinger Cat States with Multimode Measurement-Induced
    Nonlinearity,” 2019.
  ieee: M. Riabinin, P. Sharapova, T. Bartley, and T. Meier, “Generating two-mode
    squeezing and Schrödinger cat states with multimode measurement-induced nonlinearity.”
    2019.
  mla: Riabinin, Matvei, et al. <i>Generating Two-Mode Squeezing and Schrödinger Cat
    States with Multimode Measurement-Induced Nonlinearity</i>. 2019.
  short: M. Riabinin, P. Sharapova, T. Bartley, T. Meier, (2019).
date_created: 2020-05-08T09:13:02Z
date_updated: 2023-02-10T16:05:00Z
keyword:
- pc2-ressources
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
status: public
title: Generating two-mode squeezing and Schrödinger cat states with multimode measurement-induced
  nonlinearity
type: preprint
user_id: '14931'
year: '2019'
...
---
_id: '10014'
abstract:
- lang: eng
  text: The cubic, tetragonal, and orthorhombic phase of potassium niobate (KNbO3)
    are studied based on density-functional theory. Starting from the relaxed atomic
    geometries, we analyze the influence of self-energy corrections on the electronic
    band structure within the GW approximation. We find that quasiparticle shifts
    widen the direct (indirect) band gap by 1.21 (1.44), 1.58 (1.55), and 1.67 (1.64)
    eV for the cubic, tetragonal, and orthorhombic phase, respectively. By solving
    the Bethe-Salpeter equation, we obtain the linear dielectric function with excitonic
    and local-field effects, which turn out to be essential for good agreement with
    experimental data. From our results, we extract an exciton binding energy of 0.6,
    0.5, and 0.5 eV for the cubic, tetragonal, and orthorhombic phase, respectively.
    Furthermore, we investigate the nonlinear second-harmonic generation (SHG) both
    theoretically and experimentally. The frequency-dependent second-order polarization
    tensor of orthorhombic KNbO3 is measured for incoming photon energies between
    1.2 and 1.6 eV. In addition, calculations within the independent-(quasi)particle
    approximation are performed for the tetragonal and orthorhombic phase. The novel
    experimental data are in excellent agreement with the quasiparticle calculations
    and resolve persistent discrepancies between earlier experimental measurements
    and ab initio results reported in the literature.
article_number: '054401'
article_type: original
author:
- first_name: Falko
  full_name: Schmidt, Falko
  id: '35251'
  last_name: Schmidt
  orcid: 0000-0002-5071-5528
- first_name: Arthur
  full_name: Riefer, Arthur
  last_name: Riefer
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
- first_name: Mirco
  full_name: Imlau, Mirco
  last_name: Imlau
- first_name: Florian
  full_name: Dobener, Florian
  last_name: Dobener
- first_name: Nils
  full_name: Mengel, Nils
  last_name: Mengel
- first_name: Sangam
  full_name: Chatterjee, Sangam
  last_name: Chatterjee
- first_name: Simone
  full_name: Sanna, Simone
  last_name: Sanna
citation:
  ama: Schmidt F, Riefer A, Schmidt WG, et al. Quasiparticle and excitonic effects
    in the optical response of KNbO3. <i>Physical Review Materials</i>. 2019;3(5).
    doi:<a href="https://doi.org/10.1103/PhysRevMaterials.3.054401">10.1103/PhysRevMaterials.3.054401</a>
  apa: Schmidt, F., Riefer, A., Schmidt, W. G., Schindlmayr, A., Imlau, M., Dobener,
    F., Mengel, N., Chatterjee, S., &#38; Sanna, S. (2019). Quasiparticle and excitonic
    effects in the optical response of KNbO3. <i>Physical Review Materials</i>, <i>3</i>(5),
    Article 054401. <a href="https://doi.org/10.1103/PhysRevMaterials.3.054401">https://doi.org/10.1103/PhysRevMaterials.3.054401</a>
  bibtex: '@article{Schmidt_Riefer_Schmidt_Schindlmayr_Imlau_Dobener_Mengel_Chatterjee_Sanna_2019,
    title={Quasiparticle and excitonic effects in the optical response of KNbO3},
    volume={3}, DOI={<a href="https://doi.org/10.1103/PhysRevMaterials.3.054401">10.1103/PhysRevMaterials.3.054401</a>},
    number={5054401}, journal={Physical Review Materials}, publisher={American Physical
    Society}, author={Schmidt, Falko and Riefer, Arthur and Schmidt, Wolf Gero and
    Schindlmayr, Arno and Imlau, Mirco and Dobener, Florian and Mengel, Nils and Chatterjee,
    Sangam and Sanna, Simone}, year={2019} }'
  chicago: Schmidt, Falko, Arthur Riefer, Wolf Gero Schmidt, Arno Schindlmayr, Mirco
    Imlau, Florian Dobener, Nils Mengel, Sangam Chatterjee, and Simone Sanna. “Quasiparticle
    and Excitonic Effects in the Optical Response of KNbO3.” <i>Physical Review Materials</i>
    3, no. 5 (2019). <a href="https://doi.org/10.1103/PhysRevMaterials.3.054401">https://doi.org/10.1103/PhysRevMaterials.3.054401</a>.
  ieee: 'F. Schmidt <i>et al.</i>, “Quasiparticle and excitonic effects in the optical
    response of KNbO3,” <i>Physical Review Materials</i>, vol. 3, no. 5, Art. no.
    054401, 2019, doi: <a href="https://doi.org/10.1103/PhysRevMaterials.3.054401">10.1103/PhysRevMaterials.3.054401</a>.'
  mla: Schmidt, Falko, et al. “Quasiparticle and Excitonic Effects in the Optical
    Response of KNbO3.” <i>Physical Review Materials</i>, vol. 3, no. 5, 054401, American
    Physical Society, 2019, doi:<a href="https://doi.org/10.1103/PhysRevMaterials.3.054401">10.1103/PhysRevMaterials.3.054401</a>.
  short: F. Schmidt, A. Riefer, W.G. Schmidt, A. Schindlmayr, M. Imlau, F. Dobener,
    N. Mengel, S. Chatterjee, S. Sanna, Physical Review Materials 3 (2019).
date_created: 2019-05-29T06:55:29Z
date_updated: 2023-04-20T14:20:33Z
ddc:
- '530'
department:
- _id: '295'
- _id: '296'
- _id: '230'
- _id: '429'
- _id: '170'
- _id: '35'
doi: 10.1103/PhysRevMaterials.3.054401
external_id:
  isi:
  - '000467044000003'
file:
- access_level: open_access
  content_type: application/pdf
  creator: schindlm
  date_created: 2020-08-27T19:05:54Z
  date_updated: 2020-08-30T14:34:33Z
  description: © 2019 American Physical Society
  file_id: '18465'
  file_name: PhysRevMaterials.3.054401.pdf
  file_size: 1949504
  relation: main_file
  title: Quasiparticle and excitonic effects in the optical response of KNbO3
file_date_updated: 2020-08-30T14:34:33Z
has_accepted_license: '1'
intvolume: '         3'
isi: '1'
issue: '5'
language:
- iso: eng
oa: '1'
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: Physical Review Materials
publication_identifier:
  eissn:
  - 2475-9953
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Quasiparticle and excitonic effects in the optical response of KNbO3
type: journal_article
user_id: '16199'
volume: 3
year: '2019'
...
---
_id: '29746'
article_number: '155107'
author:
- first_name: C. W.
  full_name: Nicholson, C. W.
  last_name: Nicholson
- first_name: M.
  full_name: Puppin, M.
  last_name: Puppin
- first_name: A.
  full_name: Lücke, A.
  last_name: Lücke
- first_name: Uwe
  full_name: Gerstmann, Uwe
  id: '171'
  last_name: Gerstmann
  orcid: 0000-0002-4476-223X
- first_name: Marvin
  full_name: Krenz, Marvin
  id: '52309'
  last_name: Krenz
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
- first_name: L.
  full_name: Rettig, L.
  last_name: Rettig
- first_name: R.
  full_name: Ernstorfer, R.
  last_name: Ernstorfer
- first_name: M.
  full_name: Wolf, M.
  last_name: Wolf
citation:
  ama: Nicholson CW, Puppin M, Lücke A, et al. Excited-state band mapping and momentum-resolved
    ultrafast population dynamics in In/Si(111) nanowires investigated with XUV-based
    time- and angle-resolved photoemission spectroscopy. <i>Physical Review B</i>.
    2019;99(15). doi:<a href="https://doi.org/10.1103/physrevb.99.155107">10.1103/physrevb.99.155107</a>
  apa: Nicholson, C. W., Puppin, M., Lücke, A., Gerstmann, U., Krenz, M., Schmidt,
    W. G., Rettig, L., Ernstorfer, R., &#38; Wolf, M. (2019). Excited-state band mapping
    and momentum-resolved ultrafast population dynamics in In/Si(111) nanowires investigated
    with XUV-based time- and angle-resolved photoemission spectroscopy. <i>Physical
    Review B</i>, <i>99</i>(15), Article 155107. <a href="https://doi.org/10.1103/physrevb.99.155107">https://doi.org/10.1103/physrevb.99.155107</a>
  bibtex: '@article{Nicholson_Puppin_Lücke_Gerstmann_Krenz_Schmidt_Rettig_Ernstorfer_Wolf_2019,
    title={Excited-state band mapping and momentum-resolved ultrafast population dynamics
    in In/Si(111) nanowires investigated with XUV-based time- and angle-resolved photoemission
    spectroscopy}, volume={99}, DOI={<a href="https://doi.org/10.1103/physrevb.99.155107">10.1103/physrevb.99.155107</a>},
    number={15155107}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Nicholson, C. W. and Puppin, M. and Lücke, A. and Gerstmann, Uwe
    and Krenz, Marvin and Schmidt, Wolf Gero and Rettig, L. and Ernstorfer, R. and
    Wolf, M.}, year={2019} }'
  chicago: Nicholson, C. W., M. Puppin, A. Lücke, Uwe Gerstmann, Marvin Krenz, Wolf
    Gero Schmidt, L. Rettig, R. Ernstorfer, and M. Wolf. “Excited-State Band Mapping
    and Momentum-Resolved Ultrafast Population Dynamics in In/Si(111) Nanowires Investigated
    with XUV-Based Time- and Angle-Resolved Photoemission Spectroscopy.” <i>Physical
    Review B</i> 99, no. 15 (2019). <a href="https://doi.org/10.1103/physrevb.99.155107">https://doi.org/10.1103/physrevb.99.155107</a>.
  ieee: 'C. W. Nicholson <i>et al.</i>, “Excited-state band mapping and momentum-resolved
    ultrafast population dynamics in In/Si(111) nanowires investigated with XUV-based
    time- and angle-resolved photoemission spectroscopy,” <i>Physical Review B</i>,
    vol. 99, no. 15, Art. no. 155107, 2019, doi: <a href="https://doi.org/10.1103/physrevb.99.155107">10.1103/physrevb.99.155107</a>.'
  mla: Nicholson, C. W., et al. “Excited-State Band Mapping and Momentum-Resolved
    Ultrafast Population Dynamics in In/Si(111) Nanowires Investigated with XUV-Based
    Time- and Angle-Resolved Photoemission Spectroscopy.” <i>Physical Review B</i>,
    vol. 99, no. 15, 155107, American Physical Society (APS), 2019, doi:<a href="https://doi.org/10.1103/physrevb.99.155107">10.1103/physrevb.99.155107</a>.
  short: C.W. Nicholson, M. Puppin, A. Lücke, U. Gerstmann, M. Krenz, W.G. Schmidt,
    L. Rettig, R. Ernstorfer, M. Wolf, Physical Review B 99 (2019).
date_created: 2022-02-03T15:26:06Z
date_updated: 2023-04-20T14:22:46Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '230'
- _id: '35'
doi: 10.1103/physrevb.99.155107
intvolume: '        99'
issue: '15'
language:
- iso: eng
project:
- _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: Physical Review B
publication_identifier:
  issn:
  - 2469-9950
  - 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Excited-state band mapping and momentum-resolved ultrafast population dynamics
  in In/Si(111) nanowires investigated with XUV-based time- and angle-resolved photoemission
  spectroscopy
type: journal_article
user_id: '16199'
volume: 99
year: '2019'
...
---
_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. <i>ACS Omega</i>. Published online 2019:3850-3859. doi:<a href="https://doi.org/10.1021/acsomega.8b03271">10.1021/acsomega.8b03271</a>
  apa: Dues, C., Schmidt, W. G., &#38; Sanna, S. (2019). Water Splitting Reaction
    at Polar Lithium Niobate Surfaces. <i>ACS Omega</i>, 3850–3859. <a href="https://doi.org/10.1021/acsomega.8b03271">https://doi.org/10.1021/acsomega.8b03271</a>
  bibtex: '@article{Dues_Schmidt_Sanna_2019, title={Water Splitting Reaction at Polar
    Lithium Niobate Surfaces}, DOI={<a href="https://doi.org/10.1021/acsomega.8b03271">10.1021/acsomega.8b03271</a>},
    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.” <i>ACS Omega</i>, 2019, 3850–59. <a href="https://doi.org/10.1021/acsomega.8b03271">https://doi.org/10.1021/acsomega.8b03271</a>.
  ieee: 'C. Dues, W. G. Schmidt, and S. Sanna, “Water Splitting Reaction at Polar
    Lithium Niobate Surfaces,” <i>ACS Omega</i>, pp. 3850–3859, 2019, doi: <a href="https://doi.org/10.1021/acsomega.8b03271">10.1021/acsomega.8b03271</a>.'
  mla: Dues, Christof, et al. “Water Splitting Reaction at Polar Lithium Niobate Surfaces.”
    <i>ACS Omega</i>, 2019, pp. 3850–59, doi:<a href="https://doi.org/10.1021/acsomega.8b03271">10.1021/acsomega.8b03271</a>.
  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: <jats:p>An integrated chip with quantum state generation, active polarization
    manipulation, and precise time control is demonstrated.</jats:p>
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. <i>Science Advances</i>. 2019;5(1). doi:<a href="https://doi.org/10.1126/sciadv.aat1451">10.1126/sciadv.aat1451</a>
  apa: Luo, K.-H., Brauner, S., Eigner, C., Sharapova, P., Ricken, R., Meier, T.,
    Herrmann, H., &#38; Silberhorn, C. (2019). Nonlinear integrated quantum electro-optic
    circuits. <i>Science Advances</i>, <i>5</i>(1). <a href="https://doi.org/10.1126/sciadv.aat1451">https://doi.org/10.1126/sciadv.aat1451</a>
  bibtex: '@article{Luo_Brauner_Eigner_Sharapova_Ricken_Meier_Herrmann_Silberhorn_2019,
    title={Nonlinear integrated quantum electro-optic circuits}, volume={5}, DOI={<a
    href="https://doi.org/10.1126/sciadv.aat1451">10.1126/sciadv.aat1451</a>}, 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.” <i>Science Advances</i> 5, no. 1 (2019). <a href="https://doi.org/10.1126/sciadv.aat1451">https://doi.org/10.1126/sciadv.aat1451</a>.
  ieee: 'K.-H. Luo <i>et al.</i>, “Nonlinear integrated quantum electro-optic circuits,”
    <i>Science Advances</i>, vol. 5, no. 1, 2019, doi: <a href="https://doi.org/10.1126/sciadv.aat1451">10.1126/sciadv.aat1451</a>.'
  mla: Luo, Kai-Hong, et al. “Nonlinear Integrated Quantum Electro-Optic Circuits.”
    <i>Science Advances</i>, vol. 5, no. 1, American Association for the Advancement
    of Science (AAAS), 2019, doi:<a href="https://doi.org/10.1126/sciadv.aat1451">10.1126/sciadv.aat1451</a>.
  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. <i>Ultrafast Phenomena and Nanophotonics XXIII</i>.
    Vol 10916. SPIE Proceedings. ; 2019. doi:<a href="https://doi.org/10.1117/12.2503539">10.1117/12.2503539</a>'
  apa: Hannes, W.-R., Krauß-Kodytek, L., Ruppert, C., Betz, M., &#38; Meier, T. (2019).
    Intensity-dependent degenerate and non-degenerate nonlinear optical absorption
    of direct-gap semiconductors. In M. Betz &#38; A. Y. Elezzabi (Eds.), <i>Ultrafast
    Phenomena and Nanophotonics XXIII</i> (No. 109160O; Vol. 10916). <a href="https://doi.org/10.1117/12.2503539">https://doi.org/10.1117/12.2503539</a>
  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={<a href="https://doi.org/10.1117/12.2503539">10.1117/12.2503539</a>},
    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 <i>Ultrafast Phenomena and
    Nanophotonics XXIII</i>, edited by Markus Betz and Abdulhakem Y. Elezzabi, Vol.
    10916. SPIE Proceedings, 2019. <a href="https://doi.org/10.1117/12.2503539">https://doi.org/10.1117/12.2503539</a>.
  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 <i>Ultrafast Phenomena and Nanophotonics XXIII</i>, 2019, vol. 10916, doi:
    <a href="https://doi.org/10.1117/12.2503539">10.1117/12.2503539</a>.'
  mla: Hannes, Wolf-Rüdiger, et al. “Intensity-Dependent Degenerate and Non-Degenerate
    Nonlinear Optical Absorption of Direct-Gap Semiconductors.” <i>Ultrafast Phenomena
    and Nanophotonics XXIII</i>, edited by Markus Betz and Abdulhakem Y. Elezzabi,
    vol. 10916, 109160O, 2019, doi:<a href="https://doi.org/10.1117/12.2503539">10.1117/12.2503539</a>.
  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. <i>Physical Review B</i>. 2019;99(12). doi:<a href="https://doi.org/10.1103/physrevb.99.125301">10.1103/physrevb.99.125301</a>
  apa: Hannes, W.-R., &#38; Meier, T. (2019). Higher-order contributions and nonperturbative
    effects in the nondegenerate nonlinear optical absorption of semiconductors using
    a two-band model. <i>Physical Review B</i>, <i>99</i>(12), Article 125301. <a
    href="https://doi.org/10.1103/physrevb.99.125301">https://doi.org/10.1103/physrevb.99.125301</a>
  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={<a href="https://doi.org/10.1103/physrevb.99.125301">10.1103/physrevb.99.125301</a>},
    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.” <i>Physical Review B</i> 99, no. 12 (2019). <a href="https://doi.org/10.1103/physrevb.99.125301">https://doi.org/10.1103/physrevb.99.125301</a>.
  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,” <i>Physical Review B</i>, vol. 99, no. 12, Art. no. 125301,
    2019, doi: <a href="https://doi.org/10.1103/physrevb.99.125301">10.1103/physrevb.99.125301</a>.'
  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.” <i>Physical Review B</i>, vol. 99, no. 12, 125301, 2019, doi:<a
    href="https://doi.org/10.1103/physrevb.99.125301">10.1103/physrevb.99.125301</a>.
  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. <i>Journal of Physics:
    Materials</i>. 2019;2:045003. doi:<a href="https://doi.org/10.1088/2515-7639/ab29ba">10.1088/2515-7639/ab29ba</a>'
  apa: 'Neufeld, S., Bocchini, A., Gerstmann, U., Schindlmayr, A., &#38; Schmidt,
    W. G. (2019). Potassium titanyl phosphate (KTP) quasiparticle energies and optical
    response. <i>Journal of Physics: Materials</i>, <i>2</i>, 045003. <a href="https://doi.org/10.1088/2515-7639/ab29ba">https://doi.org/10.1088/2515-7639/ab29ba</a>'
  bibtex: '@article{Neufeld_Bocchini_Gerstmann_Schindlmayr_Schmidt_2019, title={Potassium
    titanyl phosphate (KTP) quasiparticle energies and optical response}, volume={2},
    DOI={<a href="https://doi.org/10.1088/2515-7639/ab29ba">10.1088/2515-7639/ab29ba</a>},
    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.” <i>Journal of Physics: Materials</i> 2 (2019): 045003. <a href="https://doi.org/10.1088/2515-7639/ab29ba">https://doi.org/10.1088/2515-7639/ab29ba</a>.'
  ieee: 'S. Neufeld, A. Bocchini, U. Gerstmann, A. Schindlmayr, and W. G. Schmidt,
    “Potassium titanyl phosphate (KTP) quasiparticle energies and optical response,”
    <i>Journal of Physics: Materials</i>, vol. 2, p. 045003, 2019, doi: <a href="https://doi.org/10.1088/2515-7639/ab29ba">10.1088/2515-7639/ab29ba</a>.'
  mla: 'Neufeld, Sergej, et al. “Potassium Titanyl Phosphate (KTP) Quasiparticle Energies
    and Optical Response.” <i>Journal of Physics: Materials</i>, vol. 2, IOP Publishing,
    2019, p. 045003, doi:<a href="https://doi.org/10.1088/2515-7639/ab29ba">10.1088/2515-7639/ab29ba</a>.'
  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. <i>Optics Express</i>. 2019;27(3):2225-2234.
    doi:<a href="https://doi.org/10.1364/oe.27.002225">10.1364/oe.27.002225</a>
  apa: Song, X., Zuo, R., Yang, S., Li, P., Meier, T., &#38; Yang, W. (2019). Attosecond
    temporal confinement of interband excitation by intraband motion. <i>Optics Express</i>,
    <i>27</i>(3), 2225–2234. <a href="https://doi.org/10.1364/oe.27.002225">https://doi.org/10.1364/oe.27.002225</a>
  bibtex: '@article{Song_Zuo_Yang_Li_Meier_Yang_2019, title={Attosecond temporal confinement
    of interband excitation by intraband motion}, volume={27}, DOI={<a href="https://doi.org/10.1364/oe.27.002225">10.1364/oe.27.002225</a>},
    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.” <i>Optics Express</i> 27, no. 3 (2019): 2225–34. <a href="https://doi.org/10.1364/oe.27.002225">https://doi.org/10.1364/oe.27.002225</a>.'
  ieee: 'X. Song, R. Zuo, S. Yang, P. Li, T. Meier, and W. Yang, “Attosecond temporal
    confinement of interband excitation by intraband motion,” <i>Optics Express</i>,
    vol. 27, no. 3, pp. 2225–2234, 2019, doi: <a href="https://doi.org/10.1364/oe.27.002225">10.1364/oe.27.002225</a>.'
  mla: Song, Xiaohong, et al. “Attosecond Temporal Confinement of Interband Excitation
    by Intraband Motion.” <i>Optics Express</i>, vol. 27, no. 3, 2019, pp. 2225–34,
    doi:<a href="https://doi.org/10.1364/oe.27.002225">10.1364/oe.27.002225</a>.
  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. <i>Physical Review B</i>. 2019;100(4).
    doi:<a href="https://doi.org/10.1103/physrevb.100.045308">10.1103/physrevb.100.045308</a>
  apa: Duc, H. T., Ngo, C., &#38; Meier, T. (2019). Ballistic photocurrents in semiconductor
    quantum wells caused by the excitation of asymmetric excitons. <i>Physical Review
    B</i>, <i>100</i>(4), Article 045308. <a href="https://doi.org/10.1103/physrevb.100.045308">https://doi.org/10.1103/physrevb.100.045308</a>
  bibtex: '@article{Duc_Ngo_Meier_2019, title={Ballistic photocurrents in semiconductor
    quantum wells caused by the excitation of asymmetric excitons}, volume={100},
    DOI={<a href="https://doi.org/10.1103/physrevb.100.045308">10.1103/physrevb.100.045308</a>},
    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.”
    <i>Physical Review B</i> 100, no. 4 (2019). <a href="https://doi.org/10.1103/physrevb.100.045308">https://doi.org/10.1103/physrevb.100.045308</a>.
  ieee: 'H. T. Duc, C. Ngo, and T. Meier, “Ballistic photocurrents in semiconductor
    quantum wells caused by the excitation of asymmetric excitons,” <i>Physical Review
    B</i>, vol. 100, no. 4, Art. no. 045308, 2019, doi: <a href="https://doi.org/10.1103/physrevb.100.045308">10.1103/physrevb.100.045308</a>.'
  mla: Duc, Huynh Thanh, et al. “Ballistic Photocurrents in Semiconductor Quantum
    Wells Caused by the Excitation of Asymmetric Excitons.” <i>Physical Review B</i>,
    vol. 100, no. 4, 045308, 2019, doi:<a href="https://doi.org/10.1103/physrevb.100.045308">10.1103/physrevb.100.045308</a>.
  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. <i>Journal of Physics: Condensed Matter</i>.
    2019;31:385401. doi:<a href="https://doi.org/10.1088/1361-648x/ab295c">10.1088/1361-648x/ab295c</a>'
  apa: 'Bocchini, A., Neufeld, S., Gerstmann, U., &#38; Schmidt, W. G. (2019). Oxygen
    and potassium vacancies in KTP calculated from first principles. <i>Journal of
    Physics: Condensed Matter</i>, <i>31</i>, 385401. <a href="https://doi.org/10.1088/1361-648x/ab295c">https://doi.org/10.1088/1361-648x/ab295c</a>'
  bibtex: '@article{Bocchini_Neufeld_Gerstmann_Schmidt_2019, title={Oxygen and potassium
    vacancies in KTP calculated from first principles}, volume={31}, DOI={<a href="https://doi.org/10.1088/1361-648x/ab295c">10.1088/1361-648x/ab295c</a>},
    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.” <i>Journal
    of Physics: Condensed Matter</i> 31 (2019): 385401. <a href="https://doi.org/10.1088/1361-648x/ab295c">https://doi.org/10.1088/1361-648x/ab295c</a>.'
  ieee: 'A. Bocchini, S. Neufeld, U. Gerstmann, and W. G. Schmidt, “Oxygen and potassium
    vacancies in KTP calculated from first principles,” <i>Journal of Physics: Condensed
    Matter</i>, vol. 31, p. 385401, 2019, doi: <a href="https://doi.org/10.1088/1361-648x/ab295c">10.1088/1361-648x/ab295c</a>.'
  mla: 'Bocchini, Adriana, et al. “Oxygen and Potassium Vacancies in KTP Calculated
    from First Principles.” <i>Journal of Physics: Condensed Matter</i>, vol. 31,
    2019, p. 385401, doi:<a href="https://doi.org/10.1088/1361-648x/ab295c">10.1088/1361-648x/ab295c</a>.'
  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. <i>Communications
    in Computational Physics</i>. 2019;25(2):564-585. doi:<a href="https://doi.org/10.4208/cicp.OA-2018-0053">10.4208/cicp.OA-2018-0053</a>
  apa: Richters, D., Lass, M., Walther, A., Plessl, C., &#38; Kühne, T. (2019). A
    General Algorithm to Calculate the Inverse Principal p-th Root of Symmetric Positive
    Definite Matrices. <i>Communications in Computational Physics</i>, <i>25</i>(2),
    564–585. <a href="https://doi.org/10.4208/cicp.OA-2018-0053">https://doi.org/10.4208/cicp.OA-2018-0053</a>
  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={<a href="https://doi.org/10.4208/cicp.OA-2018-0053">10.4208/cicp.OA-2018-0053</a>},
    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.” <i>Communications in Computational Physics</i>
    25, no. 2 (2019): 564–85. <a href="https://doi.org/10.4208/cicp.OA-2018-0053">https://doi.org/10.4208/cicp.OA-2018-0053</a>.'
  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,”
    <i>Communications in Computational Physics</i>, vol. 25, no. 2, pp. 564–585, 2019,
    doi: <a href="https://doi.org/10.4208/cicp.OA-2018-0053">10.4208/cicp.OA-2018-0053</a>.'
  mla: Richters, Dorothee, et al. “A General Algorithm to Calculate the Inverse Principal
    P-Th Root of Symmetric Positive Definite Matrices.” <i>Communications in Computational
    Physics</i>, vol. 25, no. 2, Global Science Press, 2019, pp. 564–85, doi:<a href="https://doi.org/10.4208/cicp.OA-2018-0053">10.4208/cicp.OA-2018-0053</a>.
  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: <i>Technologies for Economical and Functional Lightweight Design</i>. ; 2019.
    doi:<a href="https://doi.org/10.1007/978-3-662-58206-0_12">10.1007/978-3-662-58206-0_12</a>'
  apa: Camberg, A. A., Stratmann, I., &#38; Tröster, T. (2019). TAILORED STACKED HYBRIDS
    – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN
    LIGHTWEIGHT CAR BODY STRUCTURES. In <i>Technologies for economical and functional
    lightweight design</i>. <a href="https://doi.org/10.1007/978-3-662-58206-0_12">https://doi.org/10.1007/978-3-662-58206-0_12</a>
  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={<a href="https://doi.org/10.1007/978-3-662-58206-0_12">10.1007/978-3-662-58206-0_12</a>},
    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 <i>Technologies for Economical and Functional
    Lightweight Design</i>. Berlin, Heidelberg, 2019. <a href="https://doi.org/10.1007/978-3-662-58206-0_12">https://doi.org/10.1007/978-3-662-58206-0_12</a>.
  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 <i>Technologies for economical and functional lightweight
    design</i>, 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.”
    <i>Technologies for Economical and Functional Lightweight Design</i>, 2019, doi:<a
    href="https://doi.org/10.1007/978-3-662-58206-0_12">10.1007/978-3-662-58206-0_12</a>.
  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.
    <i>Physical Review B</i>. 2019;100(15):155103-155109. doi:<a href="https://doi.org/10.1103/physrevb.100.155103">10.1103/physrevb.100.155103</a>
  apa: Azadi, S., &#38; Kühne, T. D. (2019). Unconventional phase III of high-pressure
    solid hydrogen. <i>Physical Review B</i>, <i>100</i>(15), 155103–155109. <a href="https://doi.org/10.1103/physrevb.100.155103">https://doi.org/10.1103/physrevb.100.155103</a>
  bibtex: '@article{Azadi_Kühne_2019, title={Unconventional phase III of high-pressure
    solid hydrogen}, volume={100}, DOI={<a href="https://doi.org/10.1103/physrevb.100.155103">10.1103/physrevb.100.155103</a>},
    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.” <i>Physical Review B</i> 100, no. 15 (2019): 155103–9. <a href="https://doi.org/10.1103/physrevb.100.155103">https://doi.org/10.1103/physrevb.100.155103</a>.'
  ieee: 'S. Azadi and T. D. Kühne, “Unconventional phase III of high-pressure solid
    hydrogen,” <i>Physical Review B</i>, vol. 100, no. 15, pp. 155103–155109, 2019,
    doi: <a href="https://doi.org/10.1103/physrevb.100.155103">10.1103/physrevb.100.155103</a>.'
  mla: Azadi, Sam, and Thomas D. Kühne. “Unconventional Phase III of High-Pressure
    Solid Hydrogen.” <i>Physical Review B</i>, vol. 100, no. 15, 2019, pp. 155103–09,
    doi:<a href="https://doi.org/10.1103/physrevb.100.155103">10.1103/physrevb.100.155103</a>.
  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: '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. <i>New Journal of Physics</i>. 2019;21. doi:<a
    href="https://doi.org/10.1088/1367-2630/ab5a9b">10.1088/1367-2630/ab5a9b</a>
  apa: Ma, X., Kartashov, Y. Y., Gao, T., &#38; Schumacher, S. (2019). Controllable
    high-speed polariton waves in a PT-symmetric lattice. <i>New Journal of Physics</i>,
    <i>21</i>, Article 123008. <a href="https://doi.org/10.1088/1367-2630/ab5a9b">https://doi.org/10.1088/1367-2630/ab5a9b</a>
  bibtex: '@article{Ma_Kartashov_Gao_Schumacher_2019, title={Controllable high-speed
    polariton waves in a PT-symmetric lattice}, volume={21}, DOI={<a href="https://doi.org/10.1088/1367-2630/ab5a9b">10.1088/1367-2630/ab5a9b</a>},
    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.” <i>New Journal of Physics</i>
    21 (2019). <a href="https://doi.org/10.1088/1367-2630/ab5a9b">https://doi.org/10.1088/1367-2630/ab5a9b</a>.
  ieee: 'X. Ma, Y. Y. Kartashov, T. Gao, and S. Schumacher, “Controllable high-speed
    polariton waves in a PT-symmetric lattice,” <i>New Journal of Physics</i>, vol.
    21, Art. no. 123008, 2019, doi: <a href="https://doi.org/10.1088/1367-2630/ab5a9b">10.1088/1367-2630/ab5a9b</a>.'
  mla: Ma, Xuekai, et al. “Controllable High-Speed Polariton Waves in a PT-Symmetric
    Lattice.” <i>New Journal of Physics</i>, vol. 21, 123008, 2019, doi:<a href="https://doi.org/10.1088/1367-2630/ab5a9b">10.1088/1367-2630/ab5a9b</a>.
  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. <i>arXiv:190312534</i>. Published online
    2019.
  apa: Pukrop, M., &#38; Schumacher, S. (2019). Externally Controlled Lotka-Volterra
    Dynamics in a Linearly Polarized  Polariton Fluid. In <i>arXiv:1903.12534</i>.
  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.” <i>ArXiv:1903.12534</i>, 2019.
  ieee: M. Pukrop and S. Schumacher, “Externally Controlled Lotka-Volterra Dynamics
    in a Linearly Polarized  Polariton Fluid,” <i>arXiv:1903.12534</i>. 2019.
  mla: Pukrop, Matthias, and Stefan Schumacher. “Externally Controlled Lotka-Volterra
    Dynamics in a Linearly Polarized  Polariton Fluid.” <i>ArXiv:1903.12534</i>, 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: "<jats:p>&lt;div&gt;\r\n\t\t\t&lt;div&gt;\r\n\t\t\t\t&lt;div&gt;\r\n\t\t\t\t\t&lt;p&gt;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&lt;/p&gt;\r\n\t\t\t\t&lt;/div&gt;\r\n\t\t\t&lt;/div&gt;\r\n\t\t&lt;/div&gt;</jats:p>"
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., &#38; Schumacher, S. (2019). <i>Molecular Doping of PCPDT-BT
    Copolymers: Comparison of Molecular Complexes with and Without Integer Charge
    Transfer</i>.'
  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. <i>Molecular Doping of PCPDT-BT Copolymers:
    Comparison of Molecular Complexes with and Without Integer Charge Transfer</i>.
    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. <i>The Journal of Physical Chemistry
    C</i>. 2019;123(7):4483-4492. doi:<a href="https://doi.org/10.1021/acs.jpcc.8b10730">10.1021/acs.jpcc.8b10730</a>'
  apa: 'Vollbrecht, J., Wiebeler, C., Bock, H., Schumacher, S., &#38; Kitzerow, H.-S.
    (2019). Curved Polar Dibenzocoronene Esters and Imides versus Their Planar Centrosymmetric
    Homologs: Photophysical and Optoelectronic Analysis. <i>The Journal of Physical
    Chemistry C</i>, <i>123</i>(7), 4483–4492. <a href="https://doi.org/10.1021/acs.jpcc.8b10730">https://doi.org/10.1021/acs.jpcc.8b10730</a>'
  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={<a href="https://doi.org/10.1021/acs.jpcc.8b10730">10.1021/acs.jpcc.8b10730</a>},
    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.” <i>The Journal of Physical Chemistry C</i> 123, no. 7 (2019): 4483–92.
    <a href="https://doi.org/10.1021/acs.jpcc.8b10730">https://doi.org/10.1021/acs.jpcc.8b10730</a>.'
  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,” <i>The Journal of Physical Chemistry
    C</i>, vol. 123, no. 7, pp. 4483–4492, 2019, doi: <a href="https://doi.org/10.1021/acs.jpcc.8b10730">10.1021/acs.jpcc.8b10730</a>.'
  mla: 'Vollbrecht, Joachim, et al. “Curved Polar Dibenzocoronene Esters and Imides
    versus Their Planar Centrosymmetric Homologs: Photophysical and Optoelectronic
    Analysis.” <i>The Journal of Physical Chemistry C</i>, vol. 123, no. 7, 2019,
    pp. 4483–92, doi:<a href="https://doi.org/10.1021/acs.jpcc.8b10730">10.1021/acs.jpcc.8b10730</a>.'
  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: '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: <i>Proceedings of the International Conference for High Performance Computing,
    Networking, Storage and Analysis</i>. ACM; 2019. doi:<a href="https://doi.org/10.1145/3295500.3356201">10.1145/3295500.3356201</a>'
  apa: De Matteis, T., de Fine Licht, J., Beránek, J., &#38; Hoefler, T. (2019). Streaming
    message interface. <i>Proceedings of the International Conference for High Performance
    Computing, Networking, Storage and Analysis</i>. <a href="https://doi.org/10.1145/3295500.3356201">https://doi.org/10.1145/3295500.3356201</a>
  bibtex: '@inproceedings{De Matteis_de Fine Licht_Beránek_Hoefler_2019, title={Streaming
    message interface}, DOI={<a href="https://doi.org/10.1145/3295500.3356201">10.1145/3295500.3356201</a>},
    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 <i>Proceedings of the International
    Conference for High Performance Computing, Networking, Storage and Analysis</i>.
    ACM, 2019. <a href="https://doi.org/10.1145/3295500.3356201">https://doi.org/10.1145/3295500.3356201</a>.
  ieee: 'T. De Matteis, J. de Fine Licht, J. Beránek, and T. Hoefler, “Streaming message
    interface,” 2019, doi: <a href="https://doi.org/10.1145/3295500.3356201">10.1145/3295500.3356201</a>.'
  mla: De Matteis, Tiziano, et al. “Streaming Message Interface.” <i>Proceedings of
    the International Conference for High Performance Computing, Networking, Storage
    and Analysis</i>, ACM, 2019, doi:<a href="https://doi.org/10.1145/3295500.3356201">10.1145/3295500.3356201</a>.
  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'
...
