Coupled dynamics of interacting spin-1 bosons in a double-well potential

Detalhes bibliográficos
Autor(a) principal: Carvalho, David William Sabino
Data de Publicação: 2018
Outros Autores: Foerster, Angela, Gusmao, Miguel Angelo Cavalheiro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/181592
Resumo: We present a detailed analysis of dynamical processes involving two or three particles in a double-well potential. Motivated by experimental realizations of such a system with optically trapped cold atoms, we focus on spin-1 bosons with special attention on the effects of a spin-dependent interaction in addition to the usual Hubbard-like repulsive one. For a sufficiently weak tunneling amplitude in comparison to the dominant Hubbard coupling, particle motion is strongly correlated, occurring only under fine-tuned relationships between well-depth asymmetry and interactions. We highlight processes involving tunneling of coupled particle pairs and triads, emphasizing the role of the spin-dependent interaction in resonance conditions.
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spelling Carvalho, David William SabinoFoerster, AngelaGusmao, Miguel Angelo Cavalheiro2018-09-01T02:55:16Z20181050-2947http://hdl.handle.net/10183/181592001073778We present a detailed analysis of dynamical processes involving two or three particles in a double-well potential. Motivated by experimental realizations of such a system with optically trapped cold atoms, we focus on spin-1 bosons with special attention on the effects of a spin-dependent interaction in addition to the usual Hubbard-like repulsive one. For a sufficiently weak tunneling amplitude in comparison to the dominant Hubbard coupling, particle motion is strongly correlated, occurring only under fine-tuned relationships between well-depth asymmetry and interactions. We highlight processes involving tunneling of coupled particle pairs and triads, emphasizing the role of the spin-dependent interaction in resonance conditions.application/pdfengPhysical review. A, Atomic, molecular, and optical physics. New York. Vol. 97, no. 3 (Mar. 2018), 033615, 6 p.Sistemas de bósonsCondensação Bose-EinsteinTunelamentoCoupled dynamics of interacting spin-1 bosons in a double-well potentialEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001073778.pdfTexto completo (inglês)application/pdf739243http://www.lume.ufrgs.br/bitstream/10183/181592/1/001073778.pdfa7f73c8802f136638d271ea9b7f92534MD51TEXT001073778.pdf.txt001073778.pdf.txtExtracted Texttext/plain27751http://www.lume.ufrgs.br/bitstream/10183/181592/2/001073778.pdf.txt1ab5ff035016081101e8c58ef402a9d6MD52THUMBNAIL001073778.pdf.jpg001073778.pdf.jpgGenerated Thumbnailimage/jpeg2056http://www.lume.ufrgs.br/bitstream/10183/181592/3/001073778.pdf.jpg65dbfd2689634138334423a2b4d4f72cMD5310183/1815922023-06-24 03:38:31.314402oai:www.lume.ufrgs.br:10183/181592Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-06-24T06:38:31Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Coupled dynamics of interacting spin-1 bosons in a double-well potential
title Coupled dynamics of interacting spin-1 bosons in a double-well potential
spellingShingle Coupled dynamics of interacting spin-1 bosons in a double-well potential
Carvalho, David William Sabino
Sistemas de bósons
Condensação Bose-Einstein
Tunelamento
title_short Coupled dynamics of interacting spin-1 bosons in a double-well potential
title_full Coupled dynamics of interacting spin-1 bosons in a double-well potential
title_fullStr Coupled dynamics of interacting spin-1 bosons in a double-well potential
title_full_unstemmed Coupled dynamics of interacting spin-1 bosons in a double-well potential
title_sort Coupled dynamics of interacting spin-1 bosons in a double-well potential
author Carvalho, David William Sabino
author_facet Carvalho, David William Sabino
Foerster, Angela
Gusmao, Miguel Angelo Cavalheiro
author_role author
author2 Foerster, Angela
Gusmao, Miguel Angelo Cavalheiro
author2_role author
author
dc.contributor.author.fl_str_mv Carvalho, David William Sabino
Foerster, Angela
Gusmao, Miguel Angelo Cavalheiro
dc.subject.por.fl_str_mv Sistemas de bósons
Condensação Bose-Einstein
Tunelamento
topic Sistemas de bósons
Condensação Bose-Einstein
Tunelamento
description We present a detailed analysis of dynamical processes involving two or three particles in a double-well potential. Motivated by experimental realizations of such a system with optically trapped cold atoms, we focus on spin-1 bosons with special attention on the effects of a spin-dependent interaction in addition to the usual Hubbard-like repulsive one. For a sufficiently weak tunneling amplitude in comparison to the dominant Hubbard coupling, particle motion is strongly correlated, occurring only under fine-tuned relationships between well-depth asymmetry and interactions. We highlight processes involving tunneling of coupled particle pairs and triads, emphasizing the role of the spin-dependent interaction in resonance conditions.
publishDate 2018
dc.date.accessioned.fl_str_mv 2018-09-01T02:55:16Z
dc.date.issued.fl_str_mv 2018
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/181592
dc.identifier.issn.pt_BR.fl_str_mv 1050-2947
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review. A, Atomic, molecular, and optical physics. New York. Vol. 97, no. 3 (Mar. 2018), 033615, 6 p.
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