Persistent currents in a strongly interacting multicomponent Bose gas on a ring
We consider a two-component Bose–Bose mixture at infinitely strong repulsive interactions in a tightly confining, one-dimensional ring trap and subjected to an artificial gauge field. By employing the Bethe Ansatz exact solution for the many-body wavefunction, we obtain the ground state energy and t...
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| Format: | Article |
| Language: | English |
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Académie des sciences
2023-07-01
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| Series: | Comptes Rendus. Physique |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.157/ |
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| author | Pecci, Giovanni Aupetit-Diallo, Gianni Albert, Mathias Vignolo, Patrizia Minguzzi, Anna |
| author_facet | Pecci, Giovanni Aupetit-Diallo, Gianni Albert, Mathias Vignolo, Patrizia Minguzzi, Anna |
| author_sort | Pecci, Giovanni |
| collection | DOAJ |
| description | We consider a two-component Bose–Bose mixture at infinitely strong repulsive interactions in a tightly confining, one-dimensional ring trap and subjected to an artificial gauge field. By employing the Bethe Ansatz exact solution for the many-body wavefunction, we obtain the ground state energy and the persistent currents up to four particles. For each value of the applied flux, we then determine the symmetry of the state under particles exchange. We find that the ground-state energy and the persistent currents display a reduced periodicity with respect to the case of non-interacting particles, corresponding to reaching states with fractional angular momentum per particle. We relate this effect to the change of symmetry of the ground state under the effect of the artificial gauge field. Our results generalize the ones previously reported for fermionic mixtures with both attractive and repulsive interactions and highlight the role of symmetry in this effect. |
| format | Article |
| id | doaj-art-561ecd5da9c344ccab518c834313f012 |
| institution | Kabale University |
| issn | 1878-1535 |
| language | English |
| publishDate | 2023-07-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Physique |
| spelling | doaj-art-561ecd5da9c344ccab518c834313f0122025-02-07T13:53:11ZengAcadémie des sciencesComptes Rendus. Physique1878-15352023-07-0124S3879910.5802/crphys.15710.5802/crphys.157Persistent currents in a strongly interacting multicomponent Bose gas on a ringPecci, Giovanni0https://orcid.org/0000-0002-9081-8361Aupetit-Diallo, Gianni1Albert, Mathias2https://orcid.org/0000-0002-6593-0300Vignolo, Patrizia3Minguzzi, Anna4https://orcid.org/0000-0003-3531-8759Université Grenoble-Alpes, CNRS, LPMMC, 38000 Grenoble, FranceUniversité Côte d’Azur, CNRS, Institut de Physique de Nice, 06560 Valbonne, FranceInstitut universitaire de France (IUF); Université Côte d’Azur, CNRS, Institut de Physique de Nice, 06560 Valbonne, FranceInstitut universitaire de France (IUF); Université Côte d’Azur, CNRS, Institut de Physique de Nice, 06560 Valbonne, FranceUniversité Grenoble-Alpes, CNRS, LPMMC, 38000 Grenoble, FranceWe consider a two-component Bose–Bose mixture at infinitely strong repulsive interactions in a tightly confining, one-dimensional ring trap and subjected to an artificial gauge field. By employing the Bethe Ansatz exact solution for the many-body wavefunction, we obtain the ground state energy and the persistent currents up to four particles. For each value of the applied flux, we then determine the symmetry of the state under particles exchange. We find that the ground-state energy and the persistent currents display a reduced periodicity with respect to the case of non-interacting particles, corresponding to reaching states with fractional angular momentum per particle. We relate this effect to the change of symmetry of the ground state under the effect of the artificial gauge field. Our results generalize the ones previously reported for fermionic mixtures with both attractive and repulsive interactions and highlight the role of symmetry in this effect.https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.157/Ultracold atomsquantum gasesone-dimensional systemsstrong interactionsartificial gauge fieldsring trapexact many-body solution |
| spellingShingle | Pecci, Giovanni Aupetit-Diallo, Gianni Albert, Mathias Vignolo, Patrizia Minguzzi, Anna Persistent currents in a strongly interacting multicomponent Bose gas on a ring Comptes Rendus. Physique Ultracold atoms quantum gases one-dimensional systems strong interactions artificial gauge fields ring trap exact many-body solution |
| title | Persistent currents in a strongly interacting multicomponent Bose gas on a ring |
| title_full | Persistent currents in a strongly interacting multicomponent Bose gas on a ring |
| title_fullStr | Persistent currents in a strongly interacting multicomponent Bose gas on a ring |
| title_full_unstemmed | Persistent currents in a strongly interacting multicomponent Bose gas on a ring |
| title_short | Persistent currents in a strongly interacting multicomponent Bose gas on a ring |
| title_sort | persistent currents in a strongly interacting multicomponent bose gas on a ring |
| topic | Ultracold atoms quantum gases one-dimensional systems strong interactions artificial gauge fields ring trap exact many-body solution |
| url | https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.157/ |
| work_keys_str_mv | AT peccigiovanni persistentcurrentsinastronglyinteractingmulticomponentbosegasonaring AT aupetitdiallogianni persistentcurrentsinastronglyinteractingmulticomponentbosegasonaring AT albertmathias persistentcurrentsinastronglyinteractingmulticomponentbosegasonaring AT vignolopatrizia persistentcurrentsinastronglyinteractingmulticomponentbosegasonaring AT minguzzianna persistentcurrentsinastronglyinteractingmulticomponentbosegasonaring |