---
_id: '29304'
abstract:
- lang: eng
  text: 'In this work we address disentanglement of style and content in speech signals.
    We propose a fully convolutional variational autoencoder employing two encoders:
    a content encoder and a style encoder. To foster disentanglement, we propose adversarial
    contrastive predictive coding. This new disentanglement method does neither need
    parallel data nor any supervision. We show that the proposed technique is capable
    of separating speaker and content traits into the two different representations
    and show competitive speaker-content disentanglement performance compared to other
    unsupervised approaches. We further demonstrate an increased robustness of the
    content representation against a train-test mismatch compared to spectral features,
    when used for phone recognition.'
author:
- first_name: Janek
  full_name: Ebbers, Janek
  id: '34851'
  last_name: Ebbers
- first_name: Michael
  full_name: Kuhlmann, Michael
  id: '49871'
  last_name: Kuhlmann
- first_name: Tobias
  full_name: Cord-Landwehr, Tobias
  id: '44393'
  last_name: Cord-Landwehr
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Ebbers J, Kuhlmann M, Cord-Landwehr T, Haeb-Umbach R. Contrastive Predictive
    Coding Supported Factorized Variational Autoencoder for Unsupervised Learning
    of Disentangled Speech Representations. In: <i>Proceedings of the IEEE International
    Conference on Acoustics, Speech and Signal Processing (ICASSP)</i>. ; 2021:3860–3864.'
  apa: Ebbers, J., Kuhlmann, M., Cord-Landwehr, T., &#38; Haeb-Umbach, R. (2021).
    Contrastive Predictive Coding Supported Factorized Variational Autoencoder for
    Unsupervised Learning of Disentangled Speech Representations. <i>Proceedings of
    the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)</i>,
    3860–3864.
  bibtex: '@inproceedings{Ebbers_Kuhlmann_Cord-Landwehr_Haeb-Umbach_2021, title={Contrastive
    Predictive Coding Supported Factorized Variational Autoencoder for Unsupervised
    Learning of Disentangled Speech Representations}, booktitle={Proceedings of the
    IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},
    author={Ebbers, Janek and Kuhlmann, Michael and Cord-Landwehr, Tobias and Haeb-Umbach,
    Reinhold}, year={2021}, pages={3860–3864} }'
  chicago: Ebbers, Janek, Michael Kuhlmann, Tobias Cord-Landwehr, and Reinhold Haeb-Umbach.
    “Contrastive Predictive Coding Supported Factorized Variational Autoencoder for
    Unsupervised Learning of Disentangled Speech Representations.” In <i>Proceedings
    of the IEEE International Conference on Acoustics, Speech and Signal Processing
    (ICASSP)</i>, 3860–3864, 2021.
  ieee: J. Ebbers, M. Kuhlmann, T. Cord-Landwehr, and R. Haeb-Umbach, “Contrastive
    Predictive Coding Supported Factorized Variational Autoencoder for Unsupervised
    Learning of Disentangled Speech Representations,” in <i>Proceedings of the IEEE
    International Conference on Acoustics, Speech and Signal Processing (ICASSP)</i>,
    2021, pp. 3860–3864.
  mla: Ebbers, Janek, et al. “Contrastive Predictive Coding Supported Factorized Variational
    Autoencoder for Unsupervised Learning of Disentangled Speech Representations.”
    <i>Proceedings of the IEEE International Conference on Acoustics, Speech and Signal
    Processing (ICASSP)</i>, 2021, pp. 3860–3864.
  short: 'J. Ebbers, M. Kuhlmann, T. Cord-Landwehr, R. Haeb-Umbach, in: Proceedings
    of the IEEE International Conference on Acoustics, Speech and Signal Processing
    (ICASSP), 2021, pp. 3860–3864.'
date_created: 2022-01-13T07:55:29Z
date_updated: 2023-11-22T08:29:42Z
ddc:
- '000'
department:
- _id: '54'
file:
- access_level: open_access
  content_type: application/pdf
  creator: ebbers
  date_created: 2022-01-13T07:56:30Z
  date_updated: 2022-01-13T08:19:19Z
  file_id: '29305'
  file_name: Template.pdf
  file_size: 236628
  relation: main_file
file_date_updated: 2022-01-13T08:19:19Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
page: 3860–3864
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Proceedings of the IEEE International Conference on Acoustics, Speech
  and Signal Processing (ICASSP)
quality_controlled: '1'
status: public
title: Contrastive Predictive Coding Supported Factorized Variational Autoencoder
  for Unsupervised Learning of Disentangled Speech Representations
type: conference
user_id: '34851'
year: '2021'
...
---
_id: '26770'
abstract:
- lang: eng
  text: "Automatic transcription of meetings requires handling of overlapped speech,
    which calls for continuous speech separation (CSS) systems. The uPIT criterion
    was proposed for utterance-level separation with neural networks and introduces
    the constraint that the total number of speakers must not exceed the number of
    output channels. When processing meeting-like data in a segment-wise manner, i.e.,
    by separating overlapping segments independently and stitching adjacent segments
    to continuous output streams, this constraint has to be fulfilled for any segment.
    In this contribution, we show that this constraint can be significantly relaxed.
    We propose a novel graph-based PIT criterion, which casts the assignment of utterances
    to output channels in a graph coloring problem. It only requires that the number
    of concurrently active speakers must not exceed the number of output channels.
    As a consequence, the system can process an arbitrary number of speakers and arbitrarily
    long segments and thus can handle more diverse scenarios.\r\nFurther, the stitching
    algorithm for obtaining a consistent output order in neighboring segments is of
    less importance and can even be eliminated completely, not the least reducing
    the computational effort. Experiments on meeting-style WSJ data show improvements
    in recognition performance over using the uPIT criterion. "
author:
- first_name: Thilo
  full_name: von Neumann, Thilo
  id: '49870'
  last_name: von Neumann
  orcid: https://orcid.org/0000-0002-7717-8670
- first_name: Keisuke
  full_name: Kinoshita, Keisuke
  last_name: Kinoshita
- first_name: Christoph
  full_name: Boeddeker, Christoph
  id: '40767'
  last_name: Boeddeker
- first_name: Marc
  full_name: Delcroix, Marc
  last_name: Delcroix
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'von Neumann T, Kinoshita K, Boeddeker C, Delcroix M, Haeb-Umbach R. Graph-PIT:
    Generalized Permutation Invariant Training for Continuous Separation of Arbitrary
    Numbers of Speakers. In: <i>Interspeech 2021</i>. ; 2021. doi:<a href="https://doi.org/10.21437/interspeech.2021-1177">10.21437/interspeech.2021-1177</a>'
  apa: 'von Neumann, T., Kinoshita, K., Boeddeker, C., Delcroix, M., &#38; Haeb-Umbach,
    R. (2021). Graph-PIT: Generalized Permutation Invariant Training for Continuous
    Separation of Arbitrary Numbers of Speakers. <i>Interspeech 2021</i>. Interspeech.
    <a href="https://doi.org/10.21437/interspeech.2021-1177">https://doi.org/10.21437/interspeech.2021-1177</a>'
  bibtex: '@inproceedings{von Neumann_Kinoshita_Boeddeker_Delcroix_Haeb-Umbach_2021,
    title={Graph-PIT: Generalized Permutation Invariant Training for Continuous Separation
    of Arbitrary Numbers of Speakers}, DOI={<a href="https://doi.org/10.21437/interspeech.2021-1177">10.21437/interspeech.2021-1177</a>},
    booktitle={Interspeech 2021}, author={von Neumann, Thilo and Kinoshita, Keisuke
    and Boeddeker, Christoph and Delcroix, Marc and Haeb-Umbach, Reinhold}, year={2021}
    }'
  chicago: 'Neumann, Thilo von, Keisuke Kinoshita, Christoph Boeddeker, Marc Delcroix,
    and Reinhold Haeb-Umbach. “Graph-PIT: Generalized Permutation Invariant Training
    for Continuous Separation of Arbitrary Numbers of Speakers.” In <i>Interspeech
    2021</i>, 2021. <a href="https://doi.org/10.21437/interspeech.2021-1177">https://doi.org/10.21437/interspeech.2021-1177</a>.'
  ieee: 'T. von Neumann, K. Kinoshita, C. Boeddeker, M. Delcroix, and R. Haeb-Umbach,
    “Graph-PIT: Generalized Permutation Invariant Training for Continuous Separation
    of Arbitrary Numbers of Speakers,” presented at the Interspeech, 2021, doi: <a
    href="https://doi.org/10.21437/interspeech.2021-1177">10.21437/interspeech.2021-1177</a>.'
  mla: 'von Neumann, Thilo, et al. “Graph-PIT: Generalized Permutation Invariant Training
    for Continuous Separation of Arbitrary Numbers of Speakers.” <i>Interspeech 2021</i>,
    2021, doi:<a href="https://doi.org/10.21437/interspeech.2021-1177">10.21437/interspeech.2021-1177</a>.'
  short: 'T. von Neumann, K. Kinoshita, C. Boeddeker, M. Delcroix, R. Haeb-Umbach,
    in: Interspeech 2021, 2021.'
conference:
  name: Interspeech
date_created: 2021-10-25T08:50:01Z
date_updated: 2023-11-15T12:14:40Z
ddc:
- '000'
department:
- _id: '54'
doi: 10.21437/interspeech.2021-1177
file:
- access_level: open_access
  content_type: video/mp4
  creator: tvn
  date_created: 2021-12-06T10:39:13Z
  date_updated: 2021-12-06T10:48:30Z
  file_id: '28327'
  file_name: Interspeech 2021 voiceover-002-compressed.mp4
  file_size: 9550220
  relation: supplementary_material
  title: Video for INTERSPEECH 2021
- access_level: open_access
  content_type: application/vnd.openxmlformats-officedocument.presentationml.presentation
  creator: tvn
  date_created: 2021-12-06T10:47:01Z
  date_updated: 2021-12-06T10:47:01Z
  file_id: '28328'
  file_name: Graph-PIT-poster-presentation.pptx
  file_size: 1337297
  relation: slides
  title: Slides from INTERSPEECH 2021
- access_level: open_access
  content_type: application/pdf
  creator: tvn
  date_created: 2021-12-06T10:48:21Z
  date_updated: 2021-12-06T10:48:21Z
  file_id: '28329'
  file_name: INTERSPEECH2021_Graph_PIT.pdf
  file_size: 226589
  relation: main_file
file_date_updated: 2021-12-06T10:48:30Z
has_accepted_license: '1'
keyword:
- Continuous speech separation
- automatic speech recognition
- overlapped speech
- permutation invariant training
language:
- iso: eng
oa: '1'
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Interspeech 2021
publication_status: published
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/fgnt/graph_pit
status: public
title: 'Graph-PIT: Generalized Permutation Invariant Training for Continuous Separation
  of Arbitrary Numbers of Speakers'
type: conference
user_id: '49870'
year: '2021'
...
---
_id: '29173'
author:
- first_name: Thilo
  full_name: von Neumann, Thilo
  id: '49870'
  last_name: von Neumann
  orcid: https://orcid.org/0000-0002-7717-8670
- first_name: Christoph
  full_name: Boeddeker, Christoph
  id: '40767'
  last_name: Boeddeker
- first_name: Keisuke
  full_name: Kinoshita, Keisuke
  last_name: Kinoshita
- first_name: Marc
  full_name: Delcroix, Marc
  last_name: Delcroix
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'von Neumann T, Boeddeker C, Kinoshita K, Delcroix M, Haeb-Umbach R. Speeding
    Up Permutation Invariant Training for Source Separation. In: <i>Speech Communication;
    14th ITG Conference</i>. ; 2021.'
  apa: von Neumann, T., Boeddeker, C., Kinoshita, K., Delcroix, M., &#38; Haeb-Umbach,
    R. (2021). Speeding Up Permutation Invariant Training for Source Separation. <i>Speech
    Communication; 14th ITG Conference</i>. Speech Communication; 14th ITG Conference,
    Kiel.
  bibtex: '@inproceedings{von Neumann_Boeddeker_Kinoshita_Delcroix_Haeb-Umbach_2021,
    title={Speeding Up Permutation Invariant Training for Source Separation}, booktitle={Speech
    Communication; 14th ITG Conference}, author={von Neumann, Thilo and Boeddeker,
    Christoph and Kinoshita, Keisuke and Delcroix, Marc and Haeb-Umbach, Reinhold},
    year={2021} }'
  chicago: Neumann, Thilo von, Christoph Boeddeker, Keisuke Kinoshita, Marc Delcroix,
    and Reinhold Haeb-Umbach. “Speeding Up Permutation Invariant Training for Source
    Separation.” In <i>Speech Communication; 14th ITG Conference</i>, 2021.
  ieee: T. von Neumann, C. Boeddeker, K. Kinoshita, M. Delcroix, and R. Haeb-Umbach,
    “Speeding Up Permutation Invariant Training for Source Separation,” presented
    at the Speech Communication; 14th ITG Conference, Kiel, 2021.
  mla: von Neumann, Thilo, et al. “Speeding Up Permutation Invariant Training for
    Source Separation.” <i>Speech Communication; 14th ITG Conference</i>, 2021.
  short: 'T. von Neumann, C. Boeddeker, K. Kinoshita, M. Delcroix, R. Haeb-Umbach,
    in: Speech Communication; 14th ITG Conference, 2021.'
conference:
  end_date: 2021-10-01
  location: Kiel
  name: Speech Communication; 14th ITG Conference
  start_date: 2021-09-29
date_created: 2022-01-07T10:40:56Z
date_updated: 2023-11-15T12:16:31Z
ddc:
- '000'
department:
- _id: '54'
file:
- access_level: open_access
  content_type: application/pdf
  creator: tvn
  date_created: 2022-01-06T13:23:27Z
  date_updated: 2022-01-06T13:23:27Z
  file_id: '29180'
  file_name: poster.pdf
  file_size: 191938
  relation: poster
- access_level: open_access
  content_type: application/pdf
  creator: tvn
  date_created: 2022-01-07T10:42:54Z
  date_updated: 2022-01-07T10:42:54Z
  file_id: '29181'
  file_name: ITG2021_Speeding_up_Permutation_Invariant_Training.pdf
  file_size: 236670
  relation: main_file
file_date_updated: 2022-01-07T10:42:54Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Speech Communication; 14th ITG Conference
quality_controlled: '1'
status: public
title: Speeding Up Permutation Invariant Training for Source Separation
type: conference
user_id: '49870'
year: '2021'
...
---
_id: '29308'
abstract:
- lang: eng
  text: 'In this paper we present our system for the Detection and Classification
    of Acoustic Scenes and Events (DCASE) 2021 Challenge Task 4: Sound Event Detection
    and Separation in Domestic Environments, where it scored the fourth rank. Our
    presented solution is an advancement of our system used in the previous edition
    of the task.We use a forward-backward convolutional recurrent neural network (FBCRNN)
    for tagging and pseudo labeling followed by tag-conditioned sound event detection
    (SED) models which are trained using strong pseudo labels provided by the FBCRNN.
    Our advancement over our earlier model is threefold. First, we introduce a strong
    label loss in the objective of the FBCRNN to take advantage of the strongly labeled
    synthetic data during training. Second, we perform multiple iterations of self-training
    for both the FBCRNN and tag-conditioned SED models. Third, while we used only
    tag-conditioned CNNs as our SED model in the previous edition we here explore
    sophisticated tag-conditioned SED model architectures, namely, bidirectional CRNNs
    and bidirectional convolutional transformer neural networks (CTNNs), and combine
    them. With metric and class specific tuning of median filter lengths for post-processing,
    our final SED model, consisting of 6 submodels (2 of each architecture), achieves
    on the public evaluation set poly-phonic sound event detection scores (PSDS) of
    0.455 for scenario 1 and 0.684 for scenario as well as a collar-based F1-score
    of 0.596 outperforming the baselines and our model from the previous edition by
    far. Source code is publicly available at https://github.com/fgnt/pb_sed.'
author:
- first_name: Janek
  full_name: Ebbers, Janek
  id: '34851'
  last_name: Ebbers
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Ebbers J, Haeb-Umbach R. Self-Trained Audio Tagging and Sound Event Detection
    in Domestic Environments. In: <i>Proceedings of the 6th Detection and Classification
    of Acoustic Scenes and Events 2021 Workshop (DCASE2021)</i>. ; 2021:226–230.'
  apa: Ebbers, J., &#38; Haeb-Umbach, R. (2021). Self-Trained Audio Tagging and Sound
    Event Detection in Domestic Environments. <i>Proceedings of the 6th Detection
    and Classification of Acoustic Scenes and Events 2021 Workshop (DCASE2021)</i>,
    226–230.
  bibtex: '@inproceedings{Ebbers_Haeb-Umbach_2021, place={Barcelona, Spain}, title={Self-Trained
    Audio Tagging and Sound Event Detection in Domestic Environments}, booktitle={Proceedings
    of the 6th Detection and Classification of Acoustic Scenes and Events 2021 Workshop
    (DCASE2021)}, author={Ebbers, Janek and Haeb-Umbach, Reinhold}, year={2021}, pages={226–230}
    }'
  chicago: Ebbers, Janek, and Reinhold Haeb-Umbach. “Self-Trained Audio Tagging and
    Sound Event Detection in Domestic Environments.” In <i>Proceedings of the 6th
    Detection and Classification of Acoustic Scenes and Events 2021 Workshop (DCASE2021)</i>,
    226–230. Barcelona, Spain, 2021.
  ieee: J. Ebbers and R. Haeb-Umbach, “Self-Trained Audio Tagging and Sound Event
    Detection in Domestic Environments,” in <i>Proceedings of the 6th Detection and
    Classification of Acoustic Scenes and Events 2021 Workshop (DCASE2021)</i>, 2021,
    pp. 226–230.
  mla: Ebbers, Janek, and Reinhold Haeb-Umbach. “Self-Trained Audio Tagging and Sound
    Event Detection in Domestic Environments.” <i>Proceedings of the 6th Detection
    and Classification of Acoustic Scenes and Events 2021 Workshop (DCASE2021)</i>,
    2021, pp. 226–230.
  short: 'J. Ebbers, R. Haeb-Umbach, in: Proceedings of the 6th Detection and Classification
    of Acoustic Scenes and Events 2021 Workshop (DCASE2021), Barcelona, Spain, 2021,
    pp. 226–230.'
date_created: 2022-01-13T08:07:47Z
date_updated: 2023-11-22T08:28:32Z
ddc:
- '000'
department:
- _id: '54'
file:
- access_level: open_access
  content_type: application/pdf
  creator: ebbers
  date_created: 2022-01-13T08:08:54Z
  date_updated: 2022-01-13T08:19:50Z
  file_id: '29309'
  file_name: template.pdf
  file_size: 239462
  relation: main_file
file_date_updated: 2022-01-13T08:19:50Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
page: 226–230
place: Barcelona, Spain
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Proceedings of the 6th Detection and Classification of Acoustic Scenes
  and Events 2021 Workshop (DCASE2021)
publication_identifier:
  isbn:
  - 978-84-09-36072-7
quality_controlled: '1'
status: public
title: Self-Trained Audio Tagging and Sound Event Detection in Domestic Environments
type: conference
user_id: '34851'
year: '2021'
...
---
_id: '29306'
abstract:
- lang: eng
  text: Recently, there has been a rising interest in sound recognition via Acoustic
    Sensor Networks to support applications such as ambient assisted living or environmental
    habitat monitoring. With state-of-the-art sound recognition being dominated by
    deep-learning-based approaches, there is a high demand for labeled training data.
    Despite the availability of large-scale  data sets such as Google's AudioSet,
    acquiring training data matching a certain application environment is still often
    a problem. In this paper we are concerned with human activity monitoring in a
    domestic environment using an ASN consisting of multiple nodes each providing
    multichannel signals. We propose a self-training based domain adaptation approach,
    which only requires unlabeled data from the target environment. Here, a sound
    recognition system trained on AudioSet, the teacher, generates pseudo labels for
    data from the target environment on which a student network is trained. The student
    can furthermore glean information about the spatial arrangement of sensors and
    sound sources to further improve classification performance. It is shown that  the
    student significantly improves recognition performance over the pre-trained teacher
    without relying on labeled data from the environment the system is deployed in.
author:
- first_name: Janek
  full_name: Ebbers, Janek
  id: '34851'
  last_name: Ebbers
- first_name: Moritz Curt
  full_name: Keyser, Moritz Curt
  last_name: Keyser
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Ebbers J, Keyser MC, Haeb-Umbach R. Adapting Sound Recognition to A New Environment
    Via Self-Training. In: <i>Proceedings of the 29th European Signal Processing Conference
    (EUSIPCO)</i>. ; 2021:1135–1139.'
  apa: Ebbers, J., Keyser, M. C., &#38; Haeb-Umbach, R. (2021). Adapting Sound Recognition
    to A New Environment Via Self-Training. <i>Proceedings of the 29th European Signal
    Processing Conference (EUSIPCO)</i>, 1135–1139.
  bibtex: '@inproceedings{Ebbers_Keyser_Haeb-Umbach_2021, title={Adapting Sound Recognition
    to A New Environment Via Self-Training}, booktitle={Proceedings of the 29th European
    Signal Processing Conference (EUSIPCO)}, author={Ebbers, Janek and Keyser, Moritz
    Curt and Haeb-Umbach, Reinhold}, year={2021}, pages={1135–1139} }'
  chicago: Ebbers, Janek, Moritz Curt Keyser, and Reinhold Haeb-Umbach. “Adapting
    Sound Recognition to A New Environment Via Self-Training.” In <i>Proceedings of
    the 29th European Signal Processing Conference (EUSIPCO)</i>, 1135–1139, 2021.
  ieee: J. Ebbers, M. C. Keyser, and R. Haeb-Umbach, “Adapting Sound Recognition to
    A New Environment Via Self-Training,” in <i>Proceedings of the 29th European Signal
    Processing Conference (EUSIPCO)</i>, 2021, pp. 1135–1139.
  mla: Ebbers, Janek, et al. “Adapting Sound Recognition to A New Environment Via
    Self-Training.” <i>Proceedings of the 29th European Signal Processing Conference
    (EUSIPCO)</i>, 2021, pp. 1135–1139.
  short: 'J. Ebbers, M.C. Keyser, R. Haeb-Umbach, in: Proceedings of the 29th European
    Signal Processing Conference (EUSIPCO), 2021, pp. 1135–1139.'
date_created: 2022-01-13T08:01:21Z
date_updated: 2023-11-22T08:28:50Z
ddc:
- '000'
department:
- _id: '54'
file:
- access_level: open_access
  content_type: application/pdf
  creator: ebbers
  date_created: 2022-01-13T08:03:26Z
  date_updated: 2022-01-13T08:19:35Z
  file_id: '29307'
  file_name: conference_101719.pdf
  file_size: 213938
  relation: main_file
file_date_updated: 2022-01-13T08:19:35Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
page: 1135–1139
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Proceedings of the 29th European Signal Processing Conference (EUSIPCO)
quality_controlled: '1'
status: public
title: Adapting Sound Recognition to A New Environment Via Self-Training
type: conference
user_id: '34851'
year: '2021'
...
---
_id: '35131'
abstract:
- lang: eng
  text: An FPGA accelerator for the computation of the semi-global Levenshtein distance
    between a pattern and a reference text is presented. The accelerator provides
    an important benefit to reduce the execution time of read-mappers used in short-read
    genomic sequencing. Previous attempts to solve the same problem in FPGA use the
    Myers algorithm following a column approach to compute the dynamic programming
    table. We use an approach based on diagonals that allows for some resource savings
    while maintaining a very high throughput of 1 alignment per clock cycle. The design
    is implemented in OpenCL and tested on two FPGA accelerators. The maximum performance
    obtained is 91.5 MPairs/s for 100 × 120 sequences and 47 MPairs/s for 300 × 360
    sequences, the highest ever reported for this problem.
author:
- first_name: David
  full_name: Castells-Rufas, David
  last_name: Castells-Rufas
- first_name: Santiago
  full_name: Marco-Sola, Santiago
  last_name: Marco-Sola
- first_name: Quim
  full_name: Aguado-Puig, Quim
  last_name: Aguado-Puig
- first_name: Antonio
  full_name: Espinosa-Morales, Antonio
  last_name: Espinosa-Morales
- first_name: Juan Carlos
  full_name: Moure, Juan Carlos
  last_name: Moure
- first_name: Lluc
  full_name: Alvarez, Lluc
  last_name: Alvarez
- first_name: Miquel
  full_name: Moreto, Miquel
  last_name: Moreto
citation:
  ama: 'Castells-Rufas D, Marco-Sola S, Aguado-Puig Q, et al. OpenCL-based FPGA Accelerator
    for Semi-Global Approximate String Matching Using Diagonal Bit-Vectors. In: <i>2021
    31st International Conference on Field-Programmable Logic and Applications (FPL)</i>.
    IEEE; 2021. doi:<a href="https://doi.org/10.1109/fpl53798.2021.00036">10.1109/fpl53798.2021.00036</a>'
  apa: Castells-Rufas, D., Marco-Sola, S., Aguado-Puig, Q., Espinosa-Morales, A.,
    Moure, J. C., Alvarez, L., &#38; Moreto, M. (2021). OpenCL-based FPGA Accelerator
    for Semi-Global Approximate String Matching Using Diagonal Bit-Vectors. <i>2021
    31st International Conference on Field-Programmable Logic and Applications (FPL)</i>.
    <a href="https://doi.org/10.1109/fpl53798.2021.00036">https://doi.org/10.1109/fpl53798.2021.00036</a>
  bibtex: '@inproceedings{Castells-Rufas_Marco-Sola_Aguado-Puig_Espinosa-Morales_Moure_Alvarez_Moreto_2021,
    title={OpenCL-based FPGA Accelerator for Semi-Global Approximate String Matching
    Using Diagonal Bit-Vectors}, DOI={<a href="https://doi.org/10.1109/fpl53798.2021.00036">10.1109/fpl53798.2021.00036</a>},
    booktitle={2021 31st International Conference on Field-Programmable Logic and
    Applications (FPL)}, publisher={IEEE}, author={Castells-Rufas, David and Marco-Sola,
    Santiago and Aguado-Puig, Quim and Espinosa-Morales, Antonio and Moure, Juan Carlos
    and Alvarez, Lluc and Moreto, Miquel}, year={2021} }'
  chicago: Castells-Rufas, David, Santiago Marco-Sola, Quim Aguado-Puig, Antonio Espinosa-Morales,
    Juan Carlos Moure, Lluc Alvarez, and Miquel Moreto. “OpenCL-Based FPGA Accelerator
    for Semi-Global Approximate String Matching Using Diagonal Bit-Vectors.” In <i>2021
    31st International Conference on Field-Programmable Logic and Applications (FPL)</i>.
    IEEE, 2021. <a href="https://doi.org/10.1109/fpl53798.2021.00036">https://doi.org/10.1109/fpl53798.2021.00036</a>.
  ieee: 'D. Castells-Rufas <i>et al.</i>, “OpenCL-based FPGA Accelerator for Semi-Global
    Approximate String Matching Using Diagonal Bit-Vectors,” 2021, doi: <a href="https://doi.org/10.1109/fpl53798.2021.00036">10.1109/fpl53798.2021.00036</a>.'
  mla: Castells-Rufas, David, et al. “OpenCL-Based FPGA Accelerator for Semi-Global
    Approximate String Matching Using Diagonal Bit-Vectors.” <i>2021 31st International
    Conference on Field-Programmable Logic and Applications (FPL)</i>, IEEE, 2021,
    doi:<a href="https://doi.org/10.1109/fpl53798.2021.00036">10.1109/fpl53798.2021.00036</a>.
  short: 'D. Castells-Rufas, S. Marco-Sola, Q. Aguado-Puig, A. Espinosa-Morales, J.C.
    Moure, L. Alvarez, M. Moreto, in: 2021 31st International Conference on Field-Programmable
    Logic and Applications (FPL), IEEE, 2021.'
date_created: 2023-01-03T10:05:13Z
date_updated: 2024-01-22T09:56:25Z
doi: 10.1109/fpl53798.2021.00036
keyword:
- pc2-harp-ressources
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: 2021 31st International Conference on Field-Programmable Logic and Applications
  (FPL)
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: OpenCL-based FPGA Accelerator for Semi-Global Approximate String Matching Using
  Diagonal Bit-Vectors
type: conference
user_id: '3145'
year: '2021'
...
---
_id: '29937'
author:
- first_name: Martin
  full_name: Karp, Martin
  last_name: Karp
- first_name: Artur
  full_name: Podobas, Artur
  last_name: Podobas
- first_name: Niclas
  full_name: Jansson, Niclas
  last_name: Jansson
- first_name: Tobias
  full_name: Kenter, Tobias
  id: '3145'
  last_name: Kenter
- first_name: Christian
  full_name: Plessl, Christian
  id: '16153'
  last_name: Plessl
  orcid: 0000-0001-5728-9982
- first_name: Philipp
  full_name: Schlatter, Philipp
  last_name: Schlatter
- first_name: Stefano
  full_name: Markidis, Stefano
  last_name: Markidis
citation:
  ama: 'Karp M, Podobas A, Jansson N, et al. High-Performance Spectral Element Methods
    on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection.
    In: <i>2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS)</i>.
    IEEE; 2021. doi:<a href="https://doi.org/10.1109/ipdps49936.2021.00116">10.1109/ipdps49936.2021.00116</a>'
  apa: 'Karp, M., Podobas, A., Jansson, N., Kenter, T., Plessl, C., Schlatter, P.,
    &#38; Markidis, S. (2021). High-Performance Spectral Element Methods on Field-Programmable
    Gate Arrays : Implementation, Evaluation, and Future Projection. <i>2021 IEEE
    International Parallel and Distributed Processing Symposium (IPDPS)</i>. <a href="https://doi.org/10.1109/ipdps49936.2021.00116">https://doi.org/10.1109/ipdps49936.2021.00116</a>'
  bibtex: '@inproceedings{Karp_Podobas_Jansson_Kenter_Plessl_Schlatter_Markidis_2021,
    title={High-Performance Spectral Element Methods on Field-Programmable Gate Arrays :
    Implementation, Evaluation, and Future Projection}, DOI={<a href="https://doi.org/10.1109/ipdps49936.2021.00116">10.1109/ipdps49936.2021.00116</a>},
    booktitle={2021 IEEE International Parallel and Distributed Processing Symposium
    (IPDPS)}, publisher={IEEE}, author={Karp, Martin and Podobas, Artur and Jansson,
    Niclas and Kenter, Tobias and Plessl, Christian and Schlatter, Philipp and Markidis,
    Stefano}, year={2021} }'
  chicago: 'Karp, Martin, Artur Podobas, Niclas Jansson, Tobias Kenter, Christian
    Plessl, Philipp Schlatter, and Stefano Markidis. “High-Performance Spectral Element
    Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future
    Projection.” In <i>2021 IEEE International Parallel and Distributed Processing
    Symposium (IPDPS)</i>. IEEE, 2021. <a href="https://doi.org/10.1109/ipdps49936.2021.00116">https://doi.org/10.1109/ipdps49936.2021.00116</a>.'
  ieee: 'M. Karp <i>et al.</i>, “High-Performance Spectral Element Methods on Field-Programmable
    Gate Arrays : Implementation, Evaluation, and Future Projection,” 2021, doi: <a
    href="https://doi.org/10.1109/ipdps49936.2021.00116">10.1109/ipdps49936.2021.00116</a>.'
  mla: 'Karp, Martin, et al. “High-Performance Spectral Element Methods on Field-Programmable
    Gate Arrays : Implementation, Evaluation, and Future Projection.” <i>2021 IEEE
    International Parallel and Distributed Processing Symposium (IPDPS)</i>, IEEE,
    2021, doi:<a href="https://doi.org/10.1109/ipdps49936.2021.00116">10.1109/ipdps49936.2021.00116</a>.'
  short: 'M. Karp, A. Podobas, N. Jansson, T. Kenter, C. Plessl, P. Schlatter, S.
    Markidis, in: 2021 IEEE International Parallel and Distributed Processing Symposium
    (IPDPS), IEEE, 2021.'
date_created: 2022-02-21T14:26:37Z
date_updated: 2024-01-22T09:59:13Z
department:
- _id: '27'
- _id: '518'
doi: 10.1109/ipdps49936.2021.00116
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: 2021 IEEE International Parallel and Distributed Processing Symposium
  (IPDPS)
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: 'High-Performance Spectral Element Methods on Field-Programmable Gate Arrays
  : Implementation, Evaluation, and Future Projection'
type: conference
user_id: '3145'
year: '2021'
...
---
_id: '46194'
author:
- first_name: Tobias
  full_name: Kenter, Tobias
  id: '3145'
  last_name: Kenter
- first_name: Adesh
  full_name: Shambhu, Adesh
  last_name: Shambhu
- first_name: Sara
  full_name: Faghih-Naini, Sara
  last_name: Faghih-Naini
- first_name: Vadym
  full_name: Aizinger, Vadym
  last_name: Aizinger
citation:
  ama: 'Kenter T, Shambhu A, Faghih-Naini S, Aizinger V. Algorithm-hardware co-design
    of a discontinuous Galerkin shallow-water model for a dataflow architecture on
    FPGA. In: <i>Proceedings of the Platform for Advanced Scientific Computing Conference
    (PASC)</i>. ACM; 2021. doi:<a href="https://doi.org/10.1145/3468267.3470617">10.1145/3468267.3470617</a>'
  apa: Kenter, T., Shambhu, A., Faghih-Naini, S., &#38; Aizinger, V. (2021). Algorithm-hardware
    co-design of a discontinuous Galerkin shallow-water model for a dataflow architecture
    on FPGA. <i>Proceedings of the Platform for Advanced Scientific Computing Conference
    (PASC)</i>. <a href="https://doi.org/10.1145/3468267.3470617">https://doi.org/10.1145/3468267.3470617</a>
  bibtex: '@inproceedings{Kenter_Shambhu_Faghih-Naini_Aizinger_2021, title={Algorithm-hardware
    co-design of a discontinuous Galerkin shallow-water model for a dataflow architecture
    on FPGA}, DOI={<a href="https://doi.org/10.1145/3468267.3470617">10.1145/3468267.3470617</a>},
    booktitle={Proceedings of the Platform for Advanced Scientific Computing Conference
    (PASC)}, publisher={ACM}, author={Kenter, Tobias and Shambhu, Adesh and Faghih-Naini,
    Sara and Aizinger, Vadym}, year={2021} }'
  chicago: Kenter, Tobias, Adesh Shambhu, Sara Faghih-Naini, and Vadym Aizinger. “Algorithm-Hardware
    Co-Design of a Discontinuous Galerkin Shallow-Water Model for a Dataflow Architecture
    on FPGA.” In <i>Proceedings of the Platform for Advanced Scientific Computing
    Conference (PASC)</i>. ACM, 2021. <a href="https://doi.org/10.1145/3468267.3470617">https://doi.org/10.1145/3468267.3470617</a>.
  ieee: 'T. Kenter, A. Shambhu, S. Faghih-Naini, and V. Aizinger, “Algorithm-hardware
    co-design of a discontinuous Galerkin shallow-water model for a dataflow architecture
    on FPGA,” 2021, doi: <a href="https://doi.org/10.1145/3468267.3470617">10.1145/3468267.3470617</a>.'
  mla: Kenter, Tobias, et al. “Algorithm-Hardware Co-Design of a Discontinuous Galerkin
    Shallow-Water Model for a Dataflow Architecture on FPGA.” <i>Proceedings of the
    Platform for Advanced Scientific Computing Conference (PASC)</i>, ACM, 2021, doi:<a
    href="https://doi.org/10.1145/3468267.3470617">10.1145/3468267.3470617</a>.
  short: 'T. Kenter, A. Shambhu, S. Faghih-Naini, V. Aizinger, in: Proceedings of
    the Platform for Advanced Scientific Computing Conference (PASC), ACM, 2021.'
date_created: 2023-07-28T11:58:14Z
date_updated: 2024-04-17T08:12:21Z
department:
- _id: '27'
- _id: '518'
doi: 10.1145/3468267.3470617
language:
- iso: eng
main_file_link:
- url: https://dl.acm.org/doi/pdf/10.1145/3468267.3470617
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Proceedings of the Platform for Advanced Scientific Computing Conference
  (PASC)
publication_status: published
publisher: ACM
quality_controlled: '1'
related_material:
  link:
  - description: Open Access available via this link.
    relation: other
    url: ' https://www.sighpc.org/for-our-community/acm-open-tocs/pasc21-open-toc '
status: public
title: Algorithm-hardware co-design of a discontinuous Galerkin shallow-water model
  for a dataflow architecture on FPGA
type: conference
user_id: '3145'
year: '2021'
...
---
_id: '27099'
abstract:
- lang: eng
  text: In our work, we have engineered low capacitance single quantum dot photodiodes
    as sensor devices for the optoelectronic sampling of ultrafast electric signals.
    By the Stark effect, a time-dependent electric signal is converted into a time-dependent
    shift of the transition energy. This shift is measured accurately by resonant
    ps laser spectroscopy with photocurrent detection. In our experiments, we sample
    the laser synchronous output pulse of an ultrafast CMOS circuit with high resolution.
    With our quantum dot sensor device, we were able to sample transients below 20
    ps with a voltage resolution in the mV-range.
author:
- first_name: Alex
  full_name: Widhalm, Alex
  last_name: Widhalm
- first_name: Sebastian
  full_name: Krehs, Sebastian
  last_name: Krehs
- first_name: Dustin
  full_name: Siebert, Dustin
  last_name: Siebert
- first_name: Nand Lal
  full_name: Sharma, Nand Lal
  last_name: Sharma
- first_name: Timo
  full_name: Langer, Timo
  last_name: Langer
- first_name: Björn
  full_name: Jonas, Björn
  last_name: Jonas
- first_name: Dirk
  full_name: Reuter, Dirk
  id: '37763'
  last_name: Reuter
- first_name: Andreas
  full_name: Thiede, Andreas
  id: '538'
  last_name: Thiede
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Artur
  full_name: Zrenner, Artur
  id: '606'
  last_name: Zrenner
  orcid: 0000-0002-5190-0944
citation:
  ama: Widhalm A, Krehs S, Siebert D, et al. Optoelectronic sampling of ultrafast
    electric transients with single quantum dots. <i>Applied Physics Letters</i>.
    2021;119:181109. doi:<a href="https://doi.org/10.1063/5.0061358">10.1063/5.0061358</a>
  apa: Widhalm, A., Krehs, S., Siebert, D., Sharma, N. L., Langer, T., Jonas, B.,
    Reuter, D., Thiede, A., Förstner, J., &#38; Zrenner, A. (2021). Optoelectronic
    sampling of ultrafast electric transients with single quantum dots. <i>Applied
    Physics Letters</i>, <i>119</i>, 181109. <a href="https://doi.org/10.1063/5.0061358">https://doi.org/10.1063/5.0061358</a>
  bibtex: '@article{Widhalm_Krehs_Siebert_Sharma_Langer_Jonas_Reuter_Thiede_Förstner_Zrenner_2021,
    title={Optoelectronic sampling of ultrafast electric transients with single quantum
    dots}, volume={119}, DOI={<a href="https://doi.org/10.1063/5.0061358">10.1063/5.0061358</a>},
    journal={Applied Physics Letters}, author={Widhalm, Alex and Krehs, Sebastian
    and Siebert, Dustin and Sharma, Nand Lal and Langer, Timo and Jonas, Björn and
    Reuter, Dirk and Thiede, Andreas and Förstner, Jens and Zrenner, Artur}, year={2021},
    pages={181109} }'
  chicago: 'Widhalm, Alex, Sebastian Krehs, Dustin Siebert, Nand Lal Sharma, Timo
    Langer, Björn Jonas, Dirk Reuter, Andreas Thiede, Jens Förstner, and Artur Zrenner.
    “Optoelectronic Sampling of Ultrafast Electric Transients with Single Quantum
    Dots.” <i>Applied Physics Letters</i> 119 (2021): 181109. <a href="https://doi.org/10.1063/5.0061358">https://doi.org/10.1063/5.0061358</a>.'
  ieee: 'A. Widhalm <i>et al.</i>, “Optoelectronic sampling of ultrafast electric
    transients with single quantum dots,” <i>Applied Physics Letters</i>, vol. 119,
    p. 181109, 2021, doi: <a href="https://doi.org/10.1063/5.0061358">10.1063/5.0061358</a>.'
  mla: Widhalm, Alex, et al. “Optoelectronic Sampling of Ultrafast Electric Transients
    with Single Quantum Dots.” <i>Applied Physics Letters</i>, vol. 119, 2021, p.
    181109, doi:<a href="https://doi.org/10.1063/5.0061358">10.1063/5.0061358</a>.
  short: A. Widhalm, S. Krehs, D. Siebert, N.L. Sharma, T. Langer, B. Jonas, D. Reuter,
    A. Thiede, J. Förstner, A. Zrenner, Applied Physics Letters 119 (2021) 181109.
date_created: 2021-11-03T10:32:03Z
date_updated: 2023-01-24T11:11:54Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '61'
- _id: '51'
doi: 10.1063/5.0061358
file:
- access_level: local
  content_type: application/pdf
  creator: fossie
  date_created: 2021-11-04T13:46:27Z
  date_updated: 2021-11-04T13:46:27Z
  embargo: 2022-11-04
  embargo_to: open_access
  file_id: '27157'
  file_name: 2021-11 Widhalm - APL - Optoelectronic sampling of ultrafast electric
    transients with single quantum dots (published version).pdf
  file_size: 1999652
  relation: main_file
file_date_updated: 2021-11-04T13:46:27Z
has_accepted_license: '1'
intvolume: '       119'
keyword:
- tet_topic_qd
language:
- iso: eng
page: '181109'
project:
- _id: '74'
  name: TRR 142 - Subproject C4
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '60'
  name: TRR 142 - Subproject A3
publication: Applied Physics Letters
publication_identifier:
  issn:
  - 0003-6951
  - 1077-3118
publication_status: published
status: public
title: Optoelectronic sampling of ultrafast electric transients with single quantum
  dots
type: journal_article
user_id: '158'
volume: 119
year: '2021'
...
---
_id: '32236'
abstract:
- lang: eng
  text: "The interaction between quantum light and matter is being intensively studied\r\nfor
    systems that are enclosed in high-$Q$ cavities which strongly enhance the\r\nlight-matter
    coupling. However, for many applications, cavities with lower\r\n$Q$-factors are
    preferred due to the increased spectral width of the cavity\r\nmode. Here, we
    investigate the interaction between quantum light and matter\r\nrepresented by
    a $\\Lambda$-type three-level system in lossy cavities, assuming\r\nthat cavity
    losses are the dominant loss mechanism. We demonstrate that cavity\r\nlosses lead
    to non-trivial steady states of the electronic occupations that can\r\nbe controlled
    by the loss rate and the initial statistics of the quantum\r\nfields. The mechanism
    of formation of such steady states can be understood on\r\nthe basis of the equations
    of motion. Analytical expressions for steady states\r\nand their numerical simulations
    are presented and discussed."
author:
- first_name: H.
  full_name: Rose, H.
  last_name: Rose
- first_name: O. V.
  full_name: Tikhonova, O. V.
  last_name: Tikhonova
- first_name: T.
  full_name: Meier, T.
  last_name: Meier
- first_name: 'P. '
  full_name: 'Sharapova, P. '
  last_name: Sharapova
citation:
  ama: Rose H, Tikhonova OV, Meier T, Sharapova P. Steady states of $Λ$-type three-level
    systems excited by quantum  light in lossy cavities. <i>arXiv:210900842</i>. Published
    online 2021.
  apa: Rose, H., Tikhonova, O. V., Meier, T., &#38; Sharapova, P. (2021). Steady states
    of $Λ$-type three-level systems excited by quantum  light in lossy cavities. In
    <i>arXiv:2109.00842</i>.
  bibtex: '@article{Rose_Tikhonova_Meier_Sharapova_2021, title={Steady states of $Λ$-type
    three-level systems excited by quantum  light in lossy cavities}, journal={arXiv:2109.00842},
    author={Rose, H. and Tikhonova, O. V. and Meier, T. and Sharapova, P. }, year={2021}
    }'
  chicago: Rose, H., O. V. Tikhonova, T. Meier, and P.  Sharapova. “Steady States
    of $Λ$-Type Three-Level Systems Excited by Quantum  Light in Lossy Cavities.”
    <i>ArXiv:2109.00842</i>, 2021.
  ieee: H. Rose, O. V. Tikhonova, T. Meier, and P. Sharapova, “Steady states of $Λ$-type
    three-level systems excited by quantum  light in lossy cavities,” <i>arXiv:2109.00842</i>.
    2021.
  mla: Rose, H., et al. “Steady States of $Λ$-Type Three-Level Systems Excited by
    Quantum  Light in Lossy Cavities.” <i>ArXiv:2109.00842</i>, 2021.
  short: H. Rose, O.V. Tikhonova, T. Meier, P. Sharapova, ArXiv:2109.00842 (2021).
date_created: 2022-06-28T07:03:29Z
date_updated: 2023-02-10T16:00:12Z
department:
- _id: '27'
external_id:
  arxiv:
  - '2109.00842'
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: arXiv:2109.00842
status: public
title: Steady states of $Λ$-type three-level systems excited by quantum  light in
  lossy cavities
type: preprint
user_id: '14931'
year: '2021'
...
---
_id: '29655'
author:
- first_name: Wilhelm
  full_name: Kirchgässner, Wilhelm
  id: '49265'
  last_name: Kirchgässner
  orcid: 0000-0001-9490-1843
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Kirchgässner W, Wallscheid O, Böcker J. Thermal Neural Networks: Lumped-Parameter
    Thermal Modeling With State-Space Machine Learning. <i>arXiv preprint arXiv:210316323</i>.
    Published online 2021.'
  apa: 'Kirchgässner, W., Wallscheid, O., &#38; Böcker, J. (2021). Thermal Neural
    Networks: Lumped-Parameter Thermal Modeling With State-Space Machine Learning.
    In <i>arXiv preprint arXiv:2103.16323</i>.'
  bibtex: '@article{Kirchgässner_Wallscheid_Böcker_2021, title={Thermal Neural Networks:
    Lumped-Parameter Thermal Modeling With State-Space Machine Learning}, journal={arXiv
    preprint arXiv:2103.16323}, author={Kirchgässner, Wilhelm and Wallscheid, Oliver
    and Böcker, Joachim}, year={2021} }'
  chicago: 'Kirchgässner, Wilhelm, Oliver Wallscheid, and Joachim Böcker. “Thermal
    Neural Networks: Lumped-Parameter Thermal Modeling With State-Space Machine Learning.”
    <i>ArXiv Preprint ArXiv:2103.16323</i>, 2021.'
  ieee: 'W. Kirchgässner, O. Wallscheid, and J. Böcker, “Thermal Neural Networks:
    Lumped-Parameter Thermal Modeling With State-Space Machine Learning,” <i>arXiv
    preprint arXiv:2103.16323</i>. 2021.'
  mla: 'Kirchgässner, Wilhelm, et al. “Thermal Neural Networks: Lumped-Parameter Thermal
    Modeling With State-Space Machine Learning.” <i>ArXiv Preprint ArXiv:2103.16323</i>,
    2021.'
  short: W. Kirchgässner, O. Wallscheid, J. Böcker, ArXiv Preprint ArXiv:2103.16323
    (2021).
date_created: 2022-01-28T14:11:06Z
date_updated: 2023-03-09T10:11:13Z
department:
- _id: '52'
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: arXiv preprint arXiv:2103.16323
status: public
title: 'Thermal Neural Networks: Lumped-Parameter Thermal Modeling With State-Space
  Machine Learning'
type: preprint
user_id: '49265'
year: '2021'
...
---
_id: '26283'
author:
- first_name: Carolin
  full_name: Lüders, Carolin
  last_name: Lüders
- first_name: Matthias
  full_name: Pukrop, Matthias
  id: '64535'
  last_name: Pukrop
- first_name: Elena
  full_name: Rozas, Elena
  last_name: Rozas
- first_name: Christian
  full_name: Schneider, Christian
  last_name: Schneider
- first_name: Sven
  full_name: Höfling, Sven
  last_name: Höfling
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Marc
  full_name: Aßmann, Marc
  last_name: Aßmann
citation:
  ama: Lüders C, Pukrop M, Rozas E, et al. Quantifying Quantum Coherence in Polariton
    Condensates. <i>PRX Quantum</i>. Published online 2021. doi:<a href="https://doi.org/10.1103/prxquantum.2.030320">10.1103/prxquantum.2.030320</a>
  apa: Lüders, C., Pukrop, M., Rozas, E., Schneider, C., Höfling, S., Sperling, J.,
    Schumacher, S., &#38; Aßmann, M. (2021). Quantifying Quantum Coherence in Polariton
    Condensates. <i>PRX Quantum</i>. <a href="https://doi.org/10.1103/prxquantum.2.030320">https://doi.org/10.1103/prxquantum.2.030320</a>
  bibtex: '@article{Lüders_Pukrop_Rozas_Schneider_Höfling_Sperling_Schumacher_Aßmann_2021,
    title={Quantifying Quantum Coherence in Polariton Condensates}, DOI={<a href="https://doi.org/10.1103/prxquantum.2.030320">10.1103/prxquantum.2.030320</a>},
    journal={PRX Quantum}, author={Lüders, Carolin and Pukrop, Matthias and Rozas,
    Elena and Schneider, Christian and Höfling, Sven and Sperling, Jan and Schumacher,
    Stefan and Aßmann, Marc}, year={2021} }'
  chicago: Lüders, Carolin, Matthias Pukrop, Elena Rozas, Christian Schneider, Sven
    Höfling, Jan Sperling, Stefan Schumacher, and Marc Aßmann. “Quantifying Quantum
    Coherence in Polariton Condensates.” <i>PRX Quantum</i>, 2021. <a href="https://doi.org/10.1103/prxquantum.2.030320">https://doi.org/10.1103/prxquantum.2.030320</a>.
  ieee: 'C. Lüders <i>et al.</i>, “Quantifying Quantum Coherence in Polariton Condensates,”
    <i>PRX Quantum</i>, 2021, doi: <a href="https://doi.org/10.1103/prxquantum.2.030320">10.1103/prxquantum.2.030320</a>.'
  mla: Lüders, Carolin, et al. “Quantifying Quantum Coherence in Polariton Condensates.”
    <i>PRX Quantum</i>, 2021, doi:<a href="https://doi.org/10.1103/prxquantum.2.030320">10.1103/prxquantum.2.030320</a>.
  short: C. Lüders, M. Pukrop, E. Rozas, C. Schneider, S. Höfling, J. Sperling, S.
    Schumacher, M. Aßmann, PRX Quantum (2021).
date_created: 2021-10-15T16:00:39Z
date_updated: 2023-04-20T15:11:36Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '706'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '35'
doi: 10.1103/prxquantum.2.030320
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: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '61'
  name: 'TRR 142 - A4: TRR 142 - Subproject A4'
publication: PRX Quantum
publication_identifier:
  issn:
  - 2691-3399
publication_status: published
status: public
title: Quantifying Quantum Coherence in Polariton Condensates
type: journal_article
user_id: '16199'
year: '2021'
...
---
_id: '29748'
author:
- first_name: Diana
  full_name: Slawig, Diana
  last_name: Slawig
- first_name: Markus
  full_name: Gruschwitz, Markus
  last_name: Gruschwitz
- first_name: Uwe
  full_name: Gerstmann, Uwe
  id: '171'
  last_name: Gerstmann
  orcid: 0000-0002-4476-223X
- first_name: Eva
  full_name: Rauls, Eva
  last_name: Rauls
- first_name: Christoph
  full_name: Tegenkamp, Christoph
  last_name: Tegenkamp
citation:
  ama: Slawig D, Gruschwitz M, Gerstmann U, Rauls E, Tegenkamp C. Adsorption and Reaction
    of PbPc on Hydrogenated Epitaxial Graphene. <i>The Journal of Physical Chemistry
    C</i>. 2021;125(36):20087-20093. doi:<a href="https://doi.org/10.1021/acs.jpcc.1c06320">10.1021/acs.jpcc.1c06320</a>
  apa: Slawig, D., Gruschwitz, M., Gerstmann, U., Rauls, E., &#38; Tegenkamp, C. (2021).
    Adsorption and Reaction of PbPc on Hydrogenated Epitaxial Graphene. <i>The Journal
    of Physical Chemistry C</i>, <i>125</i>(36), 20087–20093. <a href="https://doi.org/10.1021/acs.jpcc.1c06320">https://doi.org/10.1021/acs.jpcc.1c06320</a>
  bibtex: '@article{Slawig_Gruschwitz_Gerstmann_Rauls_Tegenkamp_2021, title={Adsorption
    and Reaction of PbPc on Hydrogenated Epitaxial Graphene}, volume={125}, DOI={<a
    href="https://doi.org/10.1021/acs.jpcc.1c06320">10.1021/acs.jpcc.1c06320</a>},
    number={36}, journal={The Journal of Physical Chemistry C}, publisher={American
    Chemical Society (ACS)}, author={Slawig, Diana and Gruschwitz, Markus and Gerstmann,
    Uwe and Rauls, Eva and Tegenkamp, Christoph}, year={2021}, pages={20087–20093}
    }'
  chicago: 'Slawig, Diana, Markus Gruschwitz, Uwe Gerstmann, Eva Rauls, and Christoph
    Tegenkamp. “Adsorption and Reaction of PbPc on Hydrogenated Epitaxial Graphene.”
    <i>The Journal of Physical Chemistry C</i> 125, no. 36 (2021): 20087–93. <a href="https://doi.org/10.1021/acs.jpcc.1c06320">https://doi.org/10.1021/acs.jpcc.1c06320</a>.'
  ieee: 'D. Slawig, M. Gruschwitz, U. Gerstmann, E. Rauls, and C. Tegenkamp, “Adsorption
    and Reaction of PbPc on Hydrogenated Epitaxial Graphene,” <i>The Journal of Physical
    Chemistry C</i>, vol. 125, no. 36, pp. 20087–20093, 2021, doi: <a href="https://doi.org/10.1021/acs.jpcc.1c06320">10.1021/acs.jpcc.1c06320</a>.'
  mla: Slawig, Diana, et al. “Adsorption and Reaction of PbPc on Hydrogenated Epitaxial
    Graphene.” <i>The Journal of Physical Chemistry C</i>, vol. 125, no. 36, American
    Chemical Society (ACS), 2021, pp. 20087–93, doi:<a href="https://doi.org/10.1021/acs.jpcc.1c06320">10.1021/acs.jpcc.1c06320</a>.
  short: D. Slawig, M. Gruschwitz, U. Gerstmann, E. Rauls, C. Tegenkamp, The Journal
    of Physical Chemistry C 125 (2021) 20087–20093.
date_created: 2022-02-03T15:37:32Z
date_updated: 2023-04-20T16:04:22Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '790'
doi: 10.1021/acs.jpcc.1c06320
intvolume: '       125'
issue: '36'
keyword:
- Surfaces
- Coatings and Films
- Physical and Theoretical Chemistry
- General Energy
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
page: 20087-20093
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'
- _id: '52'
  name: 'PC2: 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
publisher: American Chemical Society (ACS)
status: public
title: Adsorption and Reaction of PbPc on Hydrogenated Epitaxial Graphene
type: journal_article
user_id: '16199'
volume: 125
year: '2021'
...
---
_id: '37331'
abstract:
- lang: eng
  text: <jats:p>High harmonic generation (HHG) from solids shows great application
    prospects in compact short-wavelength light sources and as a tool for imaging
    the dynamics in crystals with subnanometer spatial and attosecond temporal resolution.
    However, the underlying collision dynamics behind solid HHG is still intensively
    debated and no direct mapping relationship between the collision dynamics with
    band structure has been built. Here, we show that the electron and its associated
    hole can be elastically scattered by neighboring atoms when their wavelength approaches
    the atomic size. We reveal that the elastic scattering of electron/hole from neighboring
    atoms can dramatically influence the electron recombination with its left-behind
    hole, which turns out to be the fundamental reason for the anisotropic interband
    HHG observed recently in bulk crystals. Our findings link the electron/hole backward
    scattering with Van Hove singularities and forward scattering with critical lines
    in the band structure and thus build a clear mapping between the band structure
    and the harmonic spectrum. Our work provides a unifying picture for several seemingly
    unrelated experimental observations and theoretical predictions, including the
    anisotropic harmonic emission in MgO, the atomic-like recollision mechanism of
    solid HHG, and the delocalization of HHG in ZnO. This strongly improved understanding
    will pave the way for controlling the solid-state HHG and visualizing the structure-dependent
    electron dynamics in solids.</jats:p>
author:
- first_name: Ruixin
  full_name: Zuo, Ruixin
  last_name: Zuo
- first_name: Alexander
  full_name: Trautmann, Alexander
  id: '38163'
  last_name: Trautmann
- first_name: Guifang
  full_name: Wang, Guifang
  last_name: Wang
- first_name: Wolf-Rüdiger
  full_name: Hannes, Wolf-Rüdiger
  last_name: Hannes
- first_name: Shidong
  full_name: Yang, Shidong
  last_name: Yang
- first_name: Xiaohong
  full_name: Song, Xiaohong
  last_name: Song
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Marcelo
  full_name: Ciappina, Marcelo
  last_name: Ciappina
- first_name: Huynh Thanh
  full_name: Duc, Huynh Thanh
  last_name: Duc
- first_name: Weifeng
  full_name: Yang, Weifeng
  last_name: Yang
citation:
  ama: Zuo R, Trautmann A, Wang G, et al. Neighboring Atom Collisions in Solid-State
    High Harmonic Generation. <i>Ultrafast Science</i>. 2021;2021. doi:<a href="https://doi.org/10.34133/2021/9861923">10.34133/2021/9861923</a>
  apa: Zuo, R., Trautmann, A., Wang, G., Hannes, W.-R., Yang, S., Song, X., Meier,
    T., Ciappina, M., Duc, H. T., &#38; Yang, W. (2021). Neighboring Atom Collisions
    in Solid-State High Harmonic Generation. <i>Ultrafast Science</i>, <i>2021</i>.
    <a href="https://doi.org/10.34133/2021/9861923">https://doi.org/10.34133/2021/9861923</a>
  bibtex: '@article{Zuo_Trautmann_Wang_Hannes_Yang_Song_Meier_Ciappina_Duc_Yang_2021,
    title={Neighboring Atom Collisions in Solid-State High Harmonic Generation}, volume={2021},
    DOI={<a href="https://doi.org/10.34133/2021/9861923">10.34133/2021/9861923</a>},
    journal={Ultrafast Science}, publisher={American Association for the Advancement
    of Science (AAAS)}, author={Zuo, Ruixin and Trautmann, Alexander and Wang, Guifang
    and Hannes, Wolf-Rüdiger and Yang, Shidong and Song, Xiaohong and Meier, Torsten
    and Ciappina, Marcelo and Duc, Huynh Thanh and Yang, Weifeng}, year={2021} }'
  chicago: Zuo, Ruixin, Alexander Trautmann, Guifang Wang, Wolf-Rüdiger Hannes, Shidong
    Yang, Xiaohong Song, Torsten Meier, Marcelo Ciappina, Huynh Thanh Duc, and Weifeng
    Yang. “Neighboring Atom Collisions in Solid-State High Harmonic Generation.” <i>Ultrafast
    Science</i> 2021 (2021). <a href="https://doi.org/10.34133/2021/9861923">https://doi.org/10.34133/2021/9861923</a>.
  ieee: 'R. Zuo <i>et al.</i>, “Neighboring Atom Collisions in Solid-State High Harmonic
    Generation,” <i>Ultrafast Science</i>, vol. 2021, 2021, doi: <a href="https://doi.org/10.34133/2021/9861923">10.34133/2021/9861923</a>.'
  mla: Zuo, Ruixin, et al. “Neighboring Atom Collisions in Solid-State High Harmonic
    Generation.” <i>Ultrafast Science</i>, vol. 2021, American Association for the
    Advancement of Science (AAAS), 2021, doi:<a href="https://doi.org/10.34133/2021/9861923">10.34133/2021/9861923</a>.
  short: R. Zuo, A. Trautmann, G. Wang, W.-R. Hannes, S. Yang, X. Song, T. Meier,
    M. Ciappina, H.T. Duc, W. Yang, Ultrafast Science 2021 (2021).
date_created: 2023-01-18T11:25:42Z
date_updated: 2023-04-21T11:11:08Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '35'
doi: 10.34133/2021/9861923
intvolume: '      2021'
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: '54'
  name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '64'
  name: 'TRR 142 - A7: TRR 142 - Subproject A7'
publication: Ultrafast Science
publication_identifier:
  issn:
  - 2765-8791
publication_status: published
publisher: American Association for the Advancement of Science (AAAS)
status: public
title: Neighboring Atom Collisions in Solid-State High Harmonic Generation
type: journal_article
user_id: '16199'
volume: 2021
year: '2021'
...
---
_id: '23477'
author:
- first_name: Le Huu
  full_name: Thong, Le Huu
  last_name: Thong
- first_name: Cong
  full_name: Ngo, Cong
  last_name: Ngo
- first_name: Huynh Thanh
  full_name: Duc, Huynh Thanh
  last_name: Duc
- first_name: Xiaohong
  full_name: Song, Xiaohong
  last_name: Song
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: Thong LH, Ngo C, Duc HT, Song X, Meier T. Microscopic analysis of high harmonic
    generation in semiconductors with degenerate bands. <i>Physical Review B</i>.
    2021;103:085201. doi:<a href="https://doi.org/10.1103/physrevb.103.085201">10.1103/physrevb.103.085201</a>
  apa: Thong, L. H., Ngo, C., Duc, H. T., Song, X., &#38; Meier, T. (2021). Microscopic
    analysis of high harmonic generation in semiconductors with degenerate bands.
    <i>Physical Review B</i>, <i>103</i>, 085201. <a href="https://doi.org/10.1103/physrevb.103.085201">https://doi.org/10.1103/physrevb.103.085201</a>
  bibtex: '@article{Thong_Ngo_Duc_Song_Meier_2021, title={Microscopic analysis of
    high harmonic generation in semiconductors with degenerate bands}, volume={103},
    DOI={<a href="https://doi.org/10.1103/physrevb.103.085201">10.1103/physrevb.103.085201</a>},
    journal={Physical Review B}, author={Thong, Le Huu and Ngo, Cong and Duc, Huynh
    Thanh and Song, Xiaohong and Meier, Torsten}, year={2021}, pages={085201} }'
  chicago: 'Thong, Le Huu, Cong Ngo, Huynh Thanh Duc, Xiaohong Song, and Torsten Meier.
    “Microscopic Analysis of High Harmonic Generation in Semiconductors with Degenerate
    Bands.” <i>Physical Review B</i> 103 (2021): 085201. <a href="https://doi.org/10.1103/physrevb.103.085201">https://doi.org/10.1103/physrevb.103.085201</a>.'
  ieee: 'L. H. Thong, C. Ngo, H. T. Duc, X. Song, and T. Meier, “Microscopic analysis
    of high harmonic generation in semiconductors with degenerate bands,” <i>Physical
    Review B</i>, vol. 103, p. 085201, 2021, doi: <a href="https://doi.org/10.1103/physrevb.103.085201">10.1103/physrevb.103.085201</a>.'
  mla: Thong, Le Huu, et al. “Microscopic Analysis of High Harmonic Generation in
    Semiconductors with Degenerate Bands.” <i>Physical Review B</i>, vol. 103, 2021,
    p. 085201, doi:<a href="https://doi.org/10.1103/physrevb.103.085201">10.1103/physrevb.103.085201</a>.
  short: L.H. Thong, C. Ngo, H.T. Duc, X. Song, T. Meier, Physical Review B 103 (2021)
    085201.
date_created: 2021-08-24T08:50:33Z
date_updated: 2023-04-21T11:13:50Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '35'
doi: 10.1103/physrevb.103.085201
intvolume: '       103'
language:
- iso: eng
page: '085201'
project:
- _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: Microscopic analysis of high harmonic generation in semiconductors with degenerate
  bands
type: journal_article
user_id: '16199'
volume: 103
year: '2021'
...
---
_id: '21946'
abstract:
- lang: eng
  text: Lithium niobate (LiNbO3), a material frequently used in optical applications,
    hosts different kinds of polarons that significantly affect many of its physical
    properties. In this study, a variety of electron polarons, namely free, bound,
    and bipolarons, are analyzed using first-principles calculations. We perform a
    full structural optimization based on density-functional theory for selected intrinsic
    defects with special attention to the role of symmetry-breaking distortions that
    lower the total energy. The cations hosting the various polarons relax to a different
    degree, with a larger relaxation corresponding to a larger gap between the defect
    level and the conduction-band edge. The projected density of states reveals that
    the polaron states are formerly empty Nb 4d states lowered into the band gap.
    Optical absorption spectra are derived within the independent-particle approximation,
    corrected by the GW approximation that yields a wider band gap and by including
    excitonic effects within the Bethe-Salpeter equation. Comparing the calculated
    spectra with the density of states, we find that the defect peak observed in the
    optical absorption stems from transitions between the defect level and a continuum
    of empty Nb 4d states. Signatures of polarons are further analyzed in the reflectivity
    and other experimentally measurable optical coefficients.
article_type: original
author:
- first_name: Falko
  full_name: Schmidt, Falko
  id: '35251'
  last_name: Schmidt
  orcid: 0000-0002-5071-5528
- first_name: Agnieszka L.
  full_name: Kozub, Agnieszka L.
  id: '77566'
  last_name: Kozub
  orcid: https://orcid.org/0000-0001-6584-0201
- 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
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
citation:
  ama: 'Schmidt F, Kozub AL, Gerstmann U, Schmidt WG, Schindlmayr A. Electron polarons
    in lithium niobate: Charge localization, lattice deformation, and optical response.
    <i>Crystals</i>. 2021;11:542. doi:<a href="https://doi.org/10.3390/cryst11050542">10.3390/cryst11050542</a>'
  apa: 'Schmidt, F., Kozub, A. L., Gerstmann, U., Schmidt, W. G., &#38; Schindlmayr,
    A. (2021). Electron polarons in lithium niobate: Charge localization, lattice
    deformation, and optical response. <i>Crystals</i>, <i>11</i>, 542. <a href="https://doi.org/10.3390/cryst11050542">https://doi.org/10.3390/cryst11050542</a>'
  bibtex: '@article{Schmidt_Kozub_Gerstmann_Schmidt_Schindlmayr_2021, title={Electron
    polarons in lithium niobate: Charge localization, lattice deformation, and optical
    response}, volume={11}, DOI={<a href="https://doi.org/10.3390/cryst11050542">10.3390/cryst11050542</a>},
    journal={Crystals}, publisher={MDPI}, author={Schmidt, Falko and Kozub, Agnieszka
    L. and Gerstmann, Uwe and Schmidt, Wolf Gero and Schindlmayr, Arno}, year={2021},
    pages={542} }'
  chicago: 'Schmidt, Falko, Agnieszka L. Kozub, Uwe Gerstmann, Wolf Gero Schmidt,
    and Arno Schindlmayr. “Electron Polarons in Lithium Niobate: Charge Localization,
    Lattice Deformation, and Optical Response.” <i>Crystals</i> 11 (2021): 542. <a
    href="https://doi.org/10.3390/cryst11050542">https://doi.org/10.3390/cryst11050542</a>.'
  ieee: 'F. Schmidt, A. L. Kozub, U. Gerstmann, W. G. Schmidt, and A. Schindlmayr,
    “Electron polarons in lithium niobate: Charge localization, lattice deformation,
    and optical response,” <i>Crystals</i>, vol. 11, p. 542, 2021, doi: <a href="https://doi.org/10.3390/cryst11050542">10.3390/cryst11050542</a>.'
  mla: 'Schmidt, Falko, et al. “Electron Polarons in Lithium Niobate: Charge Localization,
    Lattice Deformation, and Optical Response.” <i>Crystals</i>, vol. 11, MDPI, 2021,
    p. 542, doi:<a href="https://doi.org/10.3390/cryst11050542">10.3390/cryst11050542</a>.'
  short: F. Schmidt, A.L. Kozub, U. Gerstmann, W.G. Schmidt, A. Schindlmayr, Crystals
    11 (2021) 542.
date_created: 2021-05-03T09:36:13Z
date_updated: 2023-04-21T11:20:15Z
ddc:
- '530'
department:
- _id: '296'
- _id: '230'
- _id: '429'
- _id: '295'
- _id: '15'
- _id: '170'
- _id: '35'
- _id: '790'
doi: 10.3390/cryst11050542
external_id:
  isi:
  - '000653822700001'
file:
- access_level: open_access
  content_type: application/pdf
  creator: schindlm
  date_created: 2021-05-13T16:47:11Z
  date_updated: 2021-05-13T16:51:41Z
  description: Creative Commons Attribution 4.0 International Public License (CC BY
    4.0)
  file_id: '22163'
  file_name: crystals-11-00542.pdf
  file_size: 3042827
  relation: main_file
  title: 'Electron polarons in lithium niobate: Charge localization, lattice deformation,
    and optical response'
file_date_updated: 2021-05-13T16:51:41Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: '        11'
isi: '1'
language:
- iso: eng
oa: '1'
page: '542'
project:
- _id: '53'
  name: TRR 142
- _id: '55'
  name: TRR 142 - Project Area B
- _id: '69'
  name: TRR 142 - Subproject B4
- _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: Crystals
publication_identifier:
  eissn:
  - 2073-4352
publication_status: published
publisher: MDPI
quality_controlled: '1'
status: public
title: 'Electron polarons in lithium niobate: Charge localization, lattice deformation,
  and optical response'
type: journal_article
user_id: '171'
volume: 11
year: '2021'
...
---
_id: '23474'
article_number: 116840X
author:
- first_name: Matthias
  full_name: Reichelt, Matthias
  id: '138'
  last_name: Reichelt
- first_name: Hendrik
  full_name: Rose, Hendrik
  id: '55958'
  last_name: Rose
  orcid: 0000-0002-3079-5428
- first_name: Alexander N.
  full_name: Kosarev, Alexander N.
  last_name: Kosarev
- first_name: Sergey V.
  full_name: Poltavtsev, Sergey V.
  last_name: Poltavtsev
- first_name: Manfred
  full_name: Bayer, Manfred
  last_name: Bayer
- first_name: Ilya A.
  full_name: Akimov, Ilya A.
  last_name: Akimov
- first_name: Christian
  full_name: Schneider, Christian
  last_name: Schneider
- first_name: Martin
  full_name: Kamp, Martin
  last_name: Kamp
- first_name: Sven
  full_name: Höfling, Sven
  last_name: Höfling
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: 'Reichelt M, Rose H, Kosarev AN, et al. Controlling the emission time of photon
    echoes by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles.
    In: Betz M, Elezzabi AY, eds. <i>Ultrafast Phenomena and Nanophotonics XXV</i>.
    Vol 11684. SPIE Proceedings. ; 2021. doi:<a href="https://doi.org/10.1117/12.2576887">10.1117/12.2576887</a>'
  apa: Reichelt, M., Rose, H., Kosarev, A. N., Poltavtsev, S. V., Bayer, M., Akimov,
    I. A., Schneider, C., Kamp, M., Höfling, S., &#38; Meier, T. (2021). Controlling
    the emission time of photon echoes by optical freezing of exciton dephasing and
    rephasing in quantum-dot ensembles. In M. Betz &#38; A. Y. Elezzabi (Eds.), <i>Ultrafast
    Phenomena and Nanophotonics XXV</i> (No. 116840X; Vol. 11684). <a href="https://doi.org/10.1117/12.2576887">https://doi.org/10.1117/12.2576887</a>
  bibtex: '@inproceedings{Reichelt_Rose_Kosarev_Poltavtsev_Bayer_Akimov_Schneider_Kamp_Höfling_Meier_2021,
    series={SPIE Proceedings}, title={Controlling the emission time of photon echoes
    by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles},
    volume={11684}, DOI={<a href="https://doi.org/10.1117/12.2576887">10.1117/12.2576887</a>},
    number={116840X}, booktitle={Ultrafast Phenomena and Nanophotonics XXV}, author={Reichelt,
    Matthias and Rose, Hendrik and Kosarev, Alexander N. and Poltavtsev, Sergey V.
    and Bayer, Manfred and Akimov, Ilya A. and Schneider, Christian and Kamp, Martin
    and Höfling, Sven and Meier, Torsten}, editor={Betz, Markus and Elezzabi, Abdulhakem
    Y.}, year={2021}, collection={SPIE Proceedings} }'
  chicago: Reichelt, Matthias, Hendrik Rose, Alexander N. Kosarev, Sergey V. Poltavtsev,
    Manfred Bayer, Ilya A. Akimov, Christian Schneider, Martin Kamp, Sven Höfling,
    and Torsten Meier. “Controlling the Emission Time of Photon Echoes by Optical
    Freezing of Exciton Dephasing and Rephasing in Quantum-Dot Ensembles.” In <i>Ultrafast
    Phenomena and Nanophotonics XXV</i>, edited by Markus Betz and Abdulhakem Y. Elezzabi,
    Vol. 11684. SPIE Proceedings, 2021. <a href="https://doi.org/10.1117/12.2576887">https://doi.org/10.1117/12.2576887</a>.
  ieee: 'M. Reichelt <i>et al.</i>, “Controlling the emission time of photon echoes
    by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles,”
    in <i>Ultrafast Phenomena and Nanophotonics XXV</i>, 2021, vol. 11684, doi: <a
    href="https://doi.org/10.1117/12.2576887">10.1117/12.2576887</a>.'
  mla: Reichelt, Matthias, et al. “Controlling the Emission Time of Photon Echoes
    by Optical Freezing of Exciton Dephasing and Rephasing in Quantum-Dot Ensembles.”
    <i>Ultrafast Phenomena and Nanophotonics XXV</i>, edited by Markus Betz and Abdulhakem
    Y. Elezzabi, vol. 11684, 116840X, 2021, doi:<a href="https://doi.org/10.1117/12.2576887">10.1117/12.2576887</a>.
  short: 'M. Reichelt, H. Rose, A.N. Kosarev, S.V. Poltavtsev, M. Bayer, I.A. Akimov,
    C. Schneider, M. Kamp, S. Höfling, T. Meier, in: M. Betz, A.Y. Elezzabi (Eds.),
    Ultrafast Phenomena and Nanophotonics XXV, 2021.'
date_created: 2021-08-24T08:46:40Z
date_updated: 2023-04-21T11:20:10Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '623'
- _id: '35'
doi: 10.1117/12.2576887
editor:
- first_name: Markus
  full_name: Betz, Markus
  last_name: Betz
- first_name: Abdulhakem Y.
  full_name: Elezzabi, Abdulhakem Y.
  last_name: Elezzabi
intvolume: '     11684'
language:
- iso: eng
project:
- _id: '53'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '59'
  name: TRR 142 - Subproject A2
- _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: Ultrafast Phenomena and Nanophotonics XXV
publication_status: published
series_title: SPIE Proceedings
status: public
title: Controlling the emission time of photon echoes by optical freezing of exciton
  dephasing and rephasing in quantum-dot ensembles
type: conference
user_id: '16199'
volume: 11684
year: '2021'
...
---
_id: '22881'
author:
- first_name: T. T. Nhung
  full_name: Nguyen, T. T. Nhung
  last_name: Nguyen
- first_name: T.
  full_name: Sollfrank, T.
  last_name: Sollfrank
- first_name: C.
  full_name: Tegenkamp, C.
  last_name: Tegenkamp
- first_name: E.
  full_name: Rauls, E.
  last_name: Rauls
- first_name: Uwe
  full_name: Gerstmann, Uwe
  id: '171'
  last_name: Gerstmann
  orcid: 0000-0002-4476-223X
citation:
  ama: Nguyen TTN, Sollfrank T, Tegenkamp C, Rauls E, Gerstmann U. Impact of screening
    and relaxation on weakly coupled two-dimensional heterostructures. <i>Physical
    Review B</i>. 2021;103:L201408. doi:<a href="https://doi.org/10.1103/physrevb.103.l201408">10.1103/physrevb.103.l201408</a>
  apa: Nguyen, T. T. N., Sollfrank, T., Tegenkamp, C., Rauls, E., &#38; Gerstmann,
    U. (2021). Impact of screening and relaxation on weakly coupled two-dimensional
    heterostructures. <i>Physical Review B</i>, <i>103</i>, L201408. <a href="https://doi.org/10.1103/physrevb.103.l201408">https://doi.org/10.1103/physrevb.103.l201408</a>
  bibtex: '@article{Nguyen_Sollfrank_Tegenkamp_Rauls_Gerstmann_2021, title={Impact
    of screening and relaxation on weakly coupled two-dimensional heterostructures},
    volume={103}, DOI={<a href="https://doi.org/10.1103/physrevb.103.l201408">10.1103/physrevb.103.l201408</a>},
    journal={Physical Review B}, author={Nguyen, T. T. Nhung and Sollfrank, T. and
    Tegenkamp, C. and Rauls, E. and Gerstmann, Uwe}, year={2021}, pages={L201408}
    }'
  chicago: 'Nguyen, T. T. Nhung, T. Sollfrank, C. Tegenkamp, E. Rauls, and Uwe Gerstmann.
    “Impact of Screening and Relaxation on Weakly Coupled Two-Dimensional Heterostructures.”
    <i>Physical Review B</i> 103 (2021): L201408. <a href="https://doi.org/10.1103/physrevb.103.l201408">https://doi.org/10.1103/physrevb.103.l201408</a>.'
  ieee: 'T. T. N. Nguyen, T. Sollfrank, C. Tegenkamp, E. Rauls, and U. Gerstmann,
    “Impact of screening and relaxation on weakly coupled two-dimensional heterostructures,”
    <i>Physical Review B</i>, vol. 103, p. L201408, 2021, doi: <a href="https://doi.org/10.1103/physrevb.103.l201408">10.1103/physrevb.103.l201408</a>.'
  mla: Nguyen, T. T. Nhung, et al. “Impact of Screening and Relaxation on Weakly Coupled
    Two-Dimensional Heterostructures.” <i>Physical Review B</i>, vol. 103, 2021, p.
    L201408, doi:<a href="https://doi.org/10.1103/physrevb.103.l201408">10.1103/physrevb.103.l201408</a>.
  short: T.T.N. Nguyen, T. Sollfrank, C. Tegenkamp, E. Rauls, U. Gerstmann, Physical
    Review B 103 (2021) L201408.
date_created: 2021-07-29T07:09:50Z
date_updated: 2023-04-21T11:24:45Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '790'
doi: 10.1103/physrevb.103.l201408
intvolume: '       103'
language:
- iso: eng
page: L201408
project:
- _id: '53'
  name: TRR 142
- _id: '55'
  name: TRR 142 - Project Area B
- _id: '69'
  name: TRR 142 - Subproject B4
- _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: Impact of screening and relaxation on weakly coupled two-dimensional heterostructures
type: journal_article
user_id: '171'
volume: 103
year: '2021'
...
---
_id: '22310'
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: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
citation:
  ama: Neufeld S, Bocchini A, Schmidt WG. Potassium titanyl phosphate Z- and Y-cut
    surfaces from density-functional theory. <i>Physical Review Materials</i>. Published
    online 2021. doi:<a href="https://doi.org/10.1103/physrevmaterials.5.064407">10.1103/physrevmaterials.5.064407</a>
  apa: Neufeld, S., Bocchini, A., &#38; Schmidt, W. G. (2021). Potassium titanyl phosphate
    Z- and Y-cut surfaces from density-functional theory. <i>Physical Review Materials</i>.
    <a href="https://doi.org/10.1103/physrevmaterials.5.064407">https://doi.org/10.1103/physrevmaterials.5.064407</a>
  bibtex: '@article{Neufeld_Bocchini_Schmidt_2021, title={Potassium titanyl phosphate
    Z- and Y-cut surfaces from density-functional theory}, DOI={<a href="https://doi.org/10.1103/physrevmaterials.5.064407">10.1103/physrevmaterials.5.064407</a>},
    journal={Physical Review Materials}, author={Neufeld, Sergej and Bocchini, Adriana
    and Schmidt, Wolf Gero}, year={2021} }'
  chicago: Neufeld, Sergej, Adriana Bocchini, and Wolf Gero Schmidt. “Potassium Titanyl
    Phosphate Z- and Y-Cut Surfaces from Density-Functional Theory.” <i>Physical Review
    Materials</i>, 2021. <a href="https://doi.org/10.1103/physrevmaterials.5.064407">https://doi.org/10.1103/physrevmaterials.5.064407</a>.
  ieee: 'S. Neufeld, A. Bocchini, and W. G. Schmidt, “Potassium titanyl phosphate
    Z- and Y-cut surfaces from density-functional theory,” <i>Physical Review Materials</i>,
    2021, doi: <a href="https://doi.org/10.1103/physrevmaterials.5.064407">10.1103/physrevmaterials.5.064407</a>.'
  mla: Neufeld, Sergej, et al. “Potassium Titanyl Phosphate Z- and Y-Cut Surfaces
    from Density-Functional Theory.” <i>Physical Review Materials</i>, 2021, doi:<a
    href="https://doi.org/10.1103/physrevmaterials.5.064407">10.1103/physrevmaterials.5.064407</a>.
  short: S. Neufeld, A. Bocchini, W.G. Schmidt, Physical Review Materials (2021).
date_created: 2021-06-14T17:34:35Z
date_updated: 2023-04-20T14:08:07Z
department:
- _id: '15'
- _id: '295'
- _id: '170'
- _id: '429'
- _id: '230'
- _id: '35'
doi: 10.1103/physrevmaterials.5.064407
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 Materials
publication_identifier:
  issn:
  - 2475-9953
publication_status: published
status: public
title: Potassium titanyl phosphate Z- and Y-cut surfaces from density-functional theory
type: journal_article
user_id: '16199'
year: '2021'
...
---
_id: '22008'
author:
- first_name: Julian
  full_name: Plaickner, Julian
  last_name: Plaickner
- first_name: Eugen
  full_name: Speiser, Eugen
  last_name: Speiser
- first_name: Christian
  full_name: Braun, Christian
  last_name: Braun
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
- first_name: Norbert
  full_name: Esser, Norbert
  last_name: Esser
- first_name: Simone
  full_name: Sanna, Simone
  last_name: Sanna
citation:
  ama: Plaickner J, Speiser E, Braun C, Schmidt WG, Esser N, Sanna S. Surface localized
    phonon modes at the Si(553)-Au nanowire system. <i>Physical Review B</i>. Published
    online 2021. doi:<a href="https://doi.org/10.1103/physrevb.103.115441">10.1103/physrevb.103.115441</a>
  apa: Plaickner, J., Speiser, E., Braun, C., Schmidt, W. G., Esser, N., &#38; Sanna,
    S. (2021). Surface localized phonon modes at the Si(553)-Au nanowire system. <i>Physical
    Review B</i>. <a href="https://doi.org/10.1103/physrevb.103.115441">https://doi.org/10.1103/physrevb.103.115441</a>
  bibtex: '@article{Plaickner_Speiser_Braun_Schmidt_Esser_Sanna_2021, title={Surface
    localized phonon modes at the Si(553)-Au nanowire system}, DOI={<a href="https://doi.org/10.1103/physrevb.103.115441">10.1103/physrevb.103.115441</a>},
    journal={Physical Review B}, author={Plaickner, Julian and Speiser, Eugen and
    Braun, Christian and Schmidt, Wolf Gero and Esser, Norbert and Sanna, Simone},
    year={2021} }'
  chicago: Plaickner, Julian, Eugen Speiser, Christian Braun, Wolf Gero Schmidt, Norbert
    Esser, and Simone Sanna. “Surface Localized Phonon Modes at the Si(553)-Au Nanowire
    System.” <i>Physical Review B</i>, 2021. <a href="https://doi.org/10.1103/physrevb.103.115441">https://doi.org/10.1103/physrevb.103.115441</a>.
  ieee: 'J. Plaickner, E. Speiser, C. Braun, W. G. Schmidt, N. Esser, and S. Sanna,
    “Surface localized phonon modes at the Si(553)-Au nanowire system,” <i>Physical
    Review B</i>, 2021, doi: <a href="https://doi.org/10.1103/physrevb.103.115441">10.1103/physrevb.103.115441</a>.'
  mla: Plaickner, Julian, et al. “Surface Localized Phonon Modes at the Si(553)-Au
    Nanowire System.” <i>Physical Review B</i>, 2021, doi:<a href="https://doi.org/10.1103/physrevb.103.115441">10.1103/physrevb.103.115441</a>.
  short: J. Plaickner, E. Speiser, C. Braun, W.G. Schmidt, N. Esser, S. Sanna, Physical
    Review B (2021).
date_created: 2021-05-06T12:45:45Z
date_updated: 2023-04-20T14:05:47Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '230'
- _id: '35'
doi: 10.1103/physrevb.103.115441
language:
- iso: eng
project:
- _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: Surface localized phonon modes at the Si(553)-Au nanowire system
type: journal_article
user_id: '16199'
year: '2021'
...
