--- _id: '13278' abstract: - lang: eng text: We present a numerical analysis of spin-1/2 fermions in a one-dimensional harmonic potential in the presence of a magnetic point-like impurity at the center of the trap. The model represents a few-body analogue of a magnetic impurity in the vicinity of an s-wave superconductor. Already for a few particles we find a ground-state level crossing between sectors with different fermion parities. We interpret this crossing as a few-body precursor of a quantum phase transition, which occurs when the impurity "breaks" a Cooper pair. This picture is further corroborated by analyzing density-density correlations in momentum space. Finally, we discuss how the system may be realized with existing cold-atoms platforms. article_number: '006' article_processing_charge: No article_type: original author: - first_name: Lukas full_name: Rammelmüller, Lukas last_name: Rammelmüller - first_name: David full_name: Huber, David last_name: Huber - first_name: Matija full_name: Čufar, Matija last_name: Čufar - first_name: Joachim full_name: Brand, Joachim last_name: Brand - first_name: Hans-Werner full_name: Hammer, Hans-Werner last_name: Hammer - first_name: Artem full_name: Volosniev, Artem id: 37D278BC-F248-11E8-B48F-1D18A9856A87 last_name: Volosniev orcid: 0000-0003-0393-5525 citation: ama: Rammelmüller L, Huber D, Čufar M, Brand J, Hammer H-W, Volosniev A. Magnetic impurity in a one-dimensional few-fermion system. SciPost Physics. 2023;14(1). doi:10.21468/scipostphys.14.1.006 apa: Rammelmüller, L., Huber, D., Čufar, M., Brand, J., Hammer, H.-W., & Volosniev, A. (2023). Magnetic impurity in a one-dimensional few-fermion system. SciPost Physics. SciPost Foundation. https://doi.org/10.21468/scipostphys.14.1.006 chicago: Rammelmüller, Lukas, David Huber, Matija Čufar, Joachim Brand, Hans-Werner Hammer, and Artem Volosniev. “Magnetic Impurity in a One-Dimensional Few-Fermion System.” SciPost Physics. SciPost Foundation, 2023. https://doi.org/10.21468/scipostphys.14.1.006. ieee: L. Rammelmüller, D. Huber, M. Čufar, J. Brand, H.-W. Hammer, and A. Volosniev, “Magnetic impurity in a one-dimensional few-fermion system,” SciPost Physics, vol. 14, no. 1. SciPost Foundation, 2023. ista: Rammelmüller L, Huber D, Čufar M, Brand J, Hammer H-W, Volosniev A. 2023. Magnetic impurity in a one-dimensional few-fermion system. SciPost Physics. 14(1), 006. mla: Rammelmüller, Lukas, et al. “Magnetic Impurity in a One-Dimensional Few-Fermion System.” SciPost Physics, vol. 14, no. 1, 006, SciPost Foundation, 2023, doi:10.21468/scipostphys.14.1.006. short: L. Rammelmüller, D. Huber, M. Čufar, J. Brand, H.-W. Hammer, A. Volosniev, SciPost Physics 14 (2023). date_created: 2023-07-24T10:48:23Z date_published: 2023-01-24T00:00:00Z date_updated: 2023-12-13T11:39:32Z day: '24' ddc: - '530' department: - _id: MiLe doi: 10.21468/scipostphys.14.1.006 external_id: arxiv: - '2204.01606' isi: - '001000325800008' file: - access_level: open_access checksum: ffdb70b9ae7aa45ea4ea6096ecbd6431 content_type: application/pdf creator: dernst date_created: 2023-07-31T08:44:38Z date_updated: 2023-07-31T08:44:38Z file_id: '13328' file_name: 2023_SciPostPhysics_Rammelmueller.pdf file_size: 1163444 relation: main_file success: 1 file_date_updated: 2023-07-31T08:44:38Z has_accepted_license: '1' intvolume: ' 14' isi: 1 issue: '1' keyword: - General Physics and Astronomy language: - iso: eng month: '01' oa: 1 oa_version: Published Version publication: SciPost Physics publication_identifier: issn: - 2542-4653 publication_status: published publisher: SciPost Foundation quality_controlled: '1' scopus_import: '1' status: public title: Magnetic impurity in a one-dimensional few-fermion system tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 14 year: '2023' ... --- _id: '13274' abstract: - lang: eng text: Viscous flows through pipes and channels are steady and ordered until, with increasing velocity, the laminar motion catastrophically breaks down and gives way to turbulence. How this apparently discontinuous change from low- to high-dimensional motion can be rationalized within the framework of the Navier-Stokes equations is not well understood. Exploiting geometrical properties of transitional channel flow we trace turbulence to far lower Reynolds numbers (Re) than previously possible and identify the complete path that reversibly links fully turbulent motion to an invariant solution. This precursor of turbulence destabilizes rapidly with Re, and the accompanying explosive increase in attractor dimension effectively marks the transition between deterministic and de facto stochastic dynamics. acknowledgement: We thank Baofang Song as well as the developers of Channelflow for sharing their numerical codes, and Mukund Vasudevan and Holger Kantz for fruitful discussions. This work was supported by a grant from the Simons Foundation (662960, B. H.). article_number: '034002' article_processing_charge: No article_type: original author: - first_name: Chaitanya S full_name: Paranjape, Chaitanya S id: 3D85B7C4-F248-11E8-B48F-1D18A9856A87 last_name: Paranjape - first_name: Gökhan full_name: Yalniz, Gökhan id: 66E74FA2-D8BF-11E9-8249-8DE2E5697425 last_name: Yalniz orcid: 0000-0002-8490-9312 - first_name: Yohann full_name: Duguet, Yohann last_name: Duguet - first_name: Nazmi B full_name: Budanur, Nazmi B id: 3EA1010E-F248-11E8-B48F-1D18A9856A87 last_name: Budanur orcid: 0000-0003-0423-5010 - first_name: Björn full_name: Hof, Björn id: 3A374330-F248-11E8-B48F-1D18A9856A87 last_name: Hof orcid: 0000-0003-2057-2754 citation: ama: Paranjape CS, Yalniz G, Duguet Y, Budanur NB, Hof B. Direct path from turbulence to time-periodic solutions. Physical Review Letters. 2023;131(3). doi:10.1103/physrevlett.131.034002 apa: Paranjape, C. S., Yalniz, G., Duguet, Y., Budanur, N. B., & Hof, B. (2023). Direct path from turbulence to time-periodic solutions. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.131.034002 chicago: Paranjape, Chaitanya S, Gökhan Yalniz, Yohann Duguet, Nazmi B Budanur, and Björn Hof. “Direct Path from Turbulence to Time-Periodic Solutions.” Physical Review Letters. American Physical Society, 2023. https://doi.org/10.1103/physrevlett.131.034002. ieee: C. S. Paranjape, G. Yalniz, Y. Duguet, N. B. Budanur, and B. Hof, “Direct path from turbulence to time-periodic solutions,” Physical Review Letters, vol. 131, no. 3. American Physical Society, 2023. ista: Paranjape CS, Yalniz G, Duguet Y, Budanur NB, Hof B. 2023. Direct path from turbulence to time-periodic solutions. Physical Review Letters. 131(3), 034002. mla: Paranjape, Chaitanya S., et al. “Direct Path from Turbulence to Time-Periodic Solutions.” Physical Review Letters, vol. 131, no. 3, 034002, American Physical Society, 2023, doi:10.1103/physrevlett.131.034002. short: C.S. Paranjape, G. Yalniz, Y. Duguet, N.B. Budanur, B. Hof, Physical Review Letters 131 (2023). date_created: 2023-07-24T09:43:59Z date_published: 2023-07-21T00:00:00Z date_updated: 2023-12-13T11:40:19Z day: '21' department: - _id: GradSch - _id: BjHo doi: 10.1103/physrevlett.131.034002 external_id: arxiv: - '2306.05098' isi: - '001052929900004' intvolume: ' 131' isi: 1 issue: '3' keyword: - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2306.05098 month: '07' oa: 1 oa_version: Preprint project: - _id: 238598C6-32DE-11EA-91FC-C7463DDC885E grant_number: '662960' name: 'Revisiting the Turbulence Problem Using Statistical Mechanics: Experimental Studies on Transitional and Turbulent Flows' publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' status: public title: Direct path from turbulence to time-periodic solutions type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 131 year: '2023' ... --- _id: '13261' abstract: - lang: eng text: Chromosomes in the eukaryotic nucleus are highly compacted. However, for many functional processes, including transcription initiation, the pairwise motion of distal chromosomal elements such as enhancers and promoters is essential and necessitates dynamic fluidity. Here, we used a live-imaging assay to simultaneously measure the positions of pairs of enhancers and promoters and their transcriptional output while systematically varying the genomic separation between these two DNA loci. Our analysis reveals the coexistence of a compact globular organization and fast subdiffusive dynamics. These combined features cause an anomalous scaling of polymer relaxation times with genomic separation leading to long-ranged correlations. Thus, encounter times of DNA loci are much less dependent on genomic distance than predicted by existing polymer models, with potential consequences for eukaryotic gene expression. acknowledgement: This work was supported in part by the U.S. National Science Foundation, the Center for the Physics of Biological Function (grant PHY-1734030), and the National Institutes of Health (grants R01GM097275, U01DA047730, and U01DK127429). D.B.B. was supported by the NOMIS Foundation as a fellow and by an EMBO postdoctoral fellowship (ALTF 343-2022). H.C. was supported by a Charles H. Revson Biomedical Science Fellowship. article_processing_charge: No article_type: original author: - first_name: David full_name: Brückner, David id: e1e86031-6537-11eb-953a-f7ab92be508d last_name: Brückner orcid: 0000-0001-7205-2975 - first_name: Hongtao full_name: Chen, Hongtao last_name: Chen - first_name: Lev full_name: Barinov, Lev last_name: Barinov - first_name: Benjamin full_name: Zoller, Benjamin last_name: Zoller - first_name: Thomas full_name: Gregor, Thomas last_name: Gregor citation: ama: Brückner D, Chen H, Barinov L, Zoller B, Gregor T. Stochastic motion and transcriptional dynamics of pairs of distal DNA loci on a compacted chromosome. Science. 2023;380(6652):1357-1362. doi:10.1126/science.adf5568 apa: Brückner, D., Chen, H., Barinov, L., Zoller, B., & Gregor, T. (2023). Stochastic motion and transcriptional dynamics of pairs of distal DNA loci on a compacted chromosome. Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.adf5568 chicago: Brückner, David, Hongtao Chen, Lev Barinov, Benjamin Zoller, and Thomas Gregor. “Stochastic Motion and Transcriptional Dynamics of Pairs of Distal DNA Loci on a Compacted Chromosome.” Science. American Association for the Advancement of Science, 2023. https://doi.org/10.1126/science.adf5568. ieee: D. Brückner, H. Chen, L. Barinov, B. Zoller, and T. Gregor, “Stochastic motion and transcriptional dynamics of pairs of distal DNA loci on a compacted chromosome,” Science, vol. 380, no. 6652. American Association for the Advancement of Science, pp. 1357–1362, 2023. ista: Brückner D, Chen H, Barinov L, Zoller B, Gregor T. 2023. Stochastic motion and transcriptional dynamics of pairs of distal DNA loci on a compacted chromosome. Science. 380(6652), 1357–1362. mla: Brückner, David, et al. “Stochastic Motion and Transcriptional Dynamics of Pairs of Distal DNA Loci on a Compacted Chromosome.” Science, vol. 380, no. 6652, American Association for the Advancement of Science, 2023, pp. 1357–62, doi:10.1126/science.adf5568. short: D. Brückner, H. Chen, L. Barinov, B. Zoller, T. Gregor, Science 380 (2023) 1357–1362. date_created: 2023-07-23T22:01:12Z date_published: 2023-06-29T00:00:00Z date_updated: 2023-12-13T11:41:07Z day: '29' department: - _id: EdHa doi: 10.1126/science.adf5568 external_id: isi: - '001106405600028' intvolume: ' 380' isi: 1 issue: '6652' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1126/science.adf5568 month: '06' oa: 1 oa_version: Preprint page: 1357-1362 project: - _id: 34e2a5b5-11ca-11ed-8bc3-b2265616ef0b grant_number: 343-2022 name: A mechano-chemical theory for stem cell fate decisions in organoid development publication: Science publication_identifier: eissn: - 1095-9203 publication_status: published publisher: American Association for the Advancement of Science quality_controlled: '1' scopus_import: '1' status: public title: Stochastic motion and transcriptional dynamics of pairs of distal DNA loci on a compacted chromosome type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 380 year: '2023' ... --- _id: '13336' article_processing_charge: No author: - first_name: Maria full_name: Kleshnina, Maria id: 4E21749C-F248-11E8-B48F-1D18A9856A87 last_name: Kleshnina citation: ama: 'Kleshnina M. kleshnina/stochgames_info: The effect of environmental information on evolution of cooperation in stochastic games. 2023. doi:10.5281/ZENODO.8059564' apa: 'Kleshnina, M. (2023). kleshnina/stochgames_info: The effect of environmental information on evolution of cooperation in stochastic games. Zenodo. https://doi.org/10.5281/ZENODO.8059564' chicago: 'Kleshnina, Maria. “Kleshnina/Stochgames_info: The Effect of Environmental Information on Evolution of Cooperation in Stochastic Games.” Zenodo, 2023. https://doi.org/10.5281/ZENODO.8059564.' ieee: 'M. Kleshnina, “kleshnina/stochgames_info: The effect of environmental information on evolution of cooperation in stochastic games.” Zenodo, 2023.' ista: 'Kleshnina M. 2023. kleshnina/stochgames_info: The effect of environmental information on evolution of cooperation in stochastic games, Zenodo, 10.5281/ZENODO.8059564.' mla: 'Kleshnina, Maria. Kleshnina/Stochgames_info: The Effect of Environmental Information on Evolution of Cooperation in Stochastic Games. Zenodo, 2023, doi:10.5281/ZENODO.8059564.' short: M. Kleshnina, (2023). date_created: 2023-07-31T11:30:46Z date_published: 2023-06-20T00:00:00Z date_updated: 2023-12-13T11:42:37Z day: '20' ddc: - '000' department: - _id: KrCh doi: 10.5281/ZENODO.8059564 main_file_link: - open_access: '1' url: https://doi.org/10.5281/zenodo.8059564 month: '06' oa: 1 oa_version: Published Version publisher: Zenodo related_material: record: - id: '13258' relation: used_in_publication status: public status: public title: 'kleshnina/stochgames_info: The effect of environmental information on evolution of cooperation in stochastic games' type: research_data_reference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2023' ... --- _id: '13443' abstract: - lang: eng text: 'The ages of solar-like stars have been at the center of many studies such as exoplanet characterization or Galactic-archeology. While ages are usually computed from stellar evolution models, relations linking ages to other stellar properties, such as rotation and magnetic activity, have been investigated. With the large catalog of 55,232 rotation periods, Prot, and photometric magnetic activity index, Sph from Kepler data, we have the opportunity to look for such magneto-gyro-chronology relations. Stellar ages are obtained with two stellar evolution codes that include treatment of angular momentum evolution, hence using Prot as input in addition to classical atmospheric parameters. We explore two different ways of predicting stellar ages on three subsamples with spectroscopic observations: solar analogs, late-F and G dwarfs, and K dwarfs. We first perform a Bayesian analysis to derive relations between Sph and ages between 1 and 5 Gyr, and other stellar properties. For late-F and G dwarfs, and K dwarfs, the multivariate regression favors the model with Prot and Sph with median differences of 0.1% and 0.2%, respectively. We also apply Machine Learning techniques with a Random Forest algorithm to predict ages up to 14 Gyr with the same set of input parameters. For late-F, G and K dwarfs together, predicted ages are on average within 5.3% of the model ages and improve to 3.1% when including Prot. These are very promising results for a quick age estimation for solar-like stars with photometric observations, especially with current and future space missions.' acknowledgement: 'This paper includes data collected by the Kepler mission and obtained from the MAST data archive at the Space Telescope Science Institute (STScI). Funding for the Kepler mission is provided by the NASA Science Mission Directorate. STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5–26555. We acknowledge that this research was supported in part by the National Science Foundation under grant No. NSF PHY-1748958. S.M. acknowledges support from the Spanish Ministry of Science and Innovation (MICINN) with the Ramón y Cajal fellowship No. RYC-2015-17697, the grant No. PID2019-107061GB-C66, and through AEI under the Severo Ochoa Centres of Excellence Programme 2020–2023 (CEX2019-000920-S). S.M. and D.G.R. acknowledge support from the Spanish Ministry of Science and Innovation (MICINN) with the grant No. PID2019-107187GB-I00. Z.R.C. acknowledges support from National Aeronautics and Space Administration via the TESS Guest Investigator Program (grant No. 80NSSC18K18584). The work presented here was partially supported by the NASA grant NNX17AF27G. A.R.G.S. acknowledges the support by FCT through national funds and by FEDER through COMPETE2020 by the following grants: UIDB/04434/2020 and UIDP/04434/2020. A.R.G.S. is supported by FCT through the work contract No. 2020.02480.CEECIND/CP1631/CT0001. R.A.G., L.A., and S.N.B. acknowledge the support from PLATO and GOLF CNES grants. S.N.B. acknowledges support from PLATO ASI-INAF agreement No. 2015-019-R.1-2018.' article_number: '131' article_processing_charge: Yes article_type: original author: - first_name: Savita full_name: Mathur, Savita last_name: Mathur - first_name: Zachary R. full_name: Claytor, Zachary R. last_name: Claytor - first_name: Ângela R. G. full_name: Santos, Ângela R. G. last_name: Santos - first_name: Rafael A. full_name: García, Rafael A. last_name: García - first_name: Louis full_name: Amard, Louis last_name: Amard - first_name: Lisa Annabelle full_name: Bugnet, Lisa Annabelle id: d9edb345-f866-11ec-9b37-d119b5234501 last_name: Bugnet orcid: 0000-0003-0142-4000 - first_name: Enrico full_name: Corsaro, Enrico last_name: Corsaro - first_name: Alfio full_name: Bonanno, Alfio last_name: Bonanno - first_name: Sylvain N. full_name: Breton, Sylvain N. last_name: Breton - first_name: Diego full_name: Godoy-Rivera, Diego last_name: Godoy-Rivera - first_name: Marc H. full_name: Pinsonneault, Marc H. last_name: Pinsonneault - first_name: Jennifer full_name: van Saders, Jennifer last_name: van Saders citation: ama: Mathur S, Claytor ZR, Santos ÂRG, et al. Magnetic activity evolution of solar-like stars. I. Sph–age relation derived from Kepler observations. The Astrophysical Journal. 2023;952(2). doi:10.3847/1538-4357/acd118 apa: Mathur, S., Claytor, Z. R., Santos, Â. R. G., García, R. A., Amard, L., Bugnet, L. A., … van Saders, J. (2023). Magnetic activity evolution of solar-like stars. I. Sph–age relation derived from Kepler observations. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/acd118 chicago: Mathur, Savita, Zachary R. Claytor, Ângela R. G. Santos, Rafael A. García, Louis Amard, Lisa Annabelle Bugnet, Enrico Corsaro, et al. “Magnetic Activity Evolution of Solar-like Stars. I. Sph–Age Relation Derived from Kepler Observations.” The Astrophysical Journal. American Astronomical Society, 2023. https://doi.org/10.3847/1538-4357/acd118. ieee: S. Mathur et al., “Magnetic activity evolution of solar-like stars. I. Sph–age relation derived from Kepler observations,” The Astrophysical Journal, vol. 952, no. 2. American Astronomical Society, 2023. ista: Mathur S, Claytor ZR, Santos ÂRG, García RA, Amard L, Bugnet LA, Corsaro E, Bonanno A, Breton SN, Godoy-Rivera D, Pinsonneault MH, van Saders J. 2023. Magnetic activity evolution of solar-like stars. I. Sph–age relation derived from Kepler observations. The Astrophysical Journal. 952(2), 131. mla: Mathur, Savita, et al. “Magnetic Activity Evolution of Solar-like Stars. I. Sph–Age Relation Derived from Kepler Observations.” The Astrophysical Journal, vol. 952, no. 2, 131, American Astronomical Society, 2023, doi:10.3847/1538-4357/acd118. short: S. Mathur, Z.R. Claytor, Â.R.G. Santos, R.A. García, L. Amard, L.A. Bugnet, E. Corsaro, A. Bonanno, S.N. Breton, D. Godoy-Rivera, M.H. Pinsonneault, J. van Saders, The Astrophysical Journal 952 (2023). date_created: 2023-08-01T14:19:16Z date_published: 2023-08-01T00:00:00Z date_updated: 2023-12-13T12:00:15Z day: '01' ddc: - '520' department: - _id: LiBu doi: 10.3847/1538-4357/acd118 external_id: isi: - '001034185700001' file: - access_level: open_access checksum: f12452834d7ed6748dbf5ace18af4723 content_type: application/pdf creator: dernst date_created: 2023-08-02T07:42:26Z date_updated: 2023-08-02T07:42:26Z file_id: '13448' file_name: 2023_AstrophysicalJour_Mathur.pdf file_size: 4192386 relation: main_file success: 1 file_date_updated: 2023-08-02T07:42:26Z has_accepted_license: '1' intvolume: ' 952' isi: 1 issue: '2' keyword: - Space and Planetary Science - Astronomy and Astrophysics language: - iso: eng month: '08' oa: 1 oa_version: Published Version publication: The Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: American Astronomical Society quality_controlled: '1' status: public title: Magnetic activity evolution of solar-like stars. I. Sph–age relation derived from Kepler observations tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 952 year: '2023' ...