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Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps
Dipolar Bosonic atoms confined in external potentials open up new avenues for quantum-state manipulation and will contribute to the design and exploration of novel functional materials. Here we investigate the ground-state and rotational properties of a rotating two-component dipolar Bose-Einstein c...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4346789/ https://www.ncbi.nlm.nih.gov/pubmed/25731962 http://dx.doi.org/10.1038/srep08684 |
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author | Zhang, Xiao-Fei Han, Wei Wen, Lin Zhang, Peng Dong, Rui-Fang Chang, Hong Zhang, Shou-Gang |
author_facet | Zhang, Xiao-Fei Han, Wei Wen, Lin Zhang, Peng Dong, Rui-Fang Chang, Hong Zhang, Shou-Gang |
author_sort | Zhang, Xiao-Fei |
collection | PubMed |
description | Dipolar Bosonic atoms confined in external potentials open up new avenues for quantum-state manipulation and will contribute to the design and exploration of novel functional materials. Here we investigate the ground-state and rotational properties of a rotating two-component dipolar Bose-Einstein condensate, which consists of both dipolar bosonic atoms with magnetic dipole moments aligned vertically to the condensate and one without dipole moments, confined in concentrically coupled annular traps. For the nonrotational case, it is found that the tunable dipolar interaction can be used to control the location of each component between the inner and outer rings, and to induce the desired ground-state phase. Under finite rotation, it is shown that there exists a critical value of rotational frequency for the nondipolar case, above which vortex state can form at the trap center, and the related vortex structures depend strongly on the rotational frequency. For the dipolar case, it is found that various ground-state phases and the related vortex structures, such as polygonal vortex clusters and vortex necklaces, can be obtained via a proper choice of the dipolar interaction and rotational frequency. Finally, we also study and discuss the formation process of such vortex structures. |
format | Online Article Text |
id | pubmed-4346789 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-43467892015-04-06 Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps Zhang, Xiao-Fei Han, Wei Wen, Lin Zhang, Peng Dong, Rui-Fang Chang, Hong Zhang, Shou-Gang Sci Rep Article Dipolar Bosonic atoms confined in external potentials open up new avenues for quantum-state manipulation and will contribute to the design and exploration of novel functional materials. Here we investigate the ground-state and rotational properties of a rotating two-component dipolar Bose-Einstein condensate, which consists of both dipolar bosonic atoms with magnetic dipole moments aligned vertically to the condensate and one without dipole moments, confined in concentrically coupled annular traps. For the nonrotational case, it is found that the tunable dipolar interaction can be used to control the location of each component between the inner and outer rings, and to induce the desired ground-state phase. Under finite rotation, it is shown that there exists a critical value of rotational frequency for the nondipolar case, above which vortex state can form at the trap center, and the related vortex structures depend strongly on the rotational frequency. For the dipolar case, it is found that various ground-state phases and the related vortex structures, such as polygonal vortex clusters and vortex necklaces, can be obtained via a proper choice of the dipolar interaction and rotational frequency. Finally, we also study and discuss the formation process of such vortex structures. Nature Publishing Group 2015-03-03 /pmc/articles/PMC4346789/ /pubmed/25731962 http://dx.doi.org/10.1038/srep08684 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Zhang, Xiao-Fei Han, Wei Wen, Lin Zhang, Peng Dong, Rui-Fang Chang, Hong Zhang, Shou-Gang Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps |
title | Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps |
title_full | Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps |
title_fullStr | Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps |
title_full_unstemmed | Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps |
title_short | Two-component dipolar Bose-Einstein condensate in concentrically coupled annular traps |
title_sort | two-component dipolar bose-einstein condensate in concentrically coupled annular traps |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4346789/ https://www.ncbi.nlm.nih.gov/pubmed/25731962 http://dx.doi.org/10.1038/srep08684 |
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