Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1038/s41598-017-16106-w http://hdl.handle.net/11449/175536 |
Resumo: | We study spontaneous symmetry breaking (SSB), Josephson oscillation, and self-trapping in a stable, mobile, three-dimensional matter-wave spherical quantum ball self-bound by attractive two-body and repulsive three-body interactions. The SSB is realized by a parity-symmetric (a) one-dimensional (1D) double-well potential or (b) a 1D Gaussian potential, both along the z axis and no potential along the x and y axes. In the presence of each of these potentials, the symmetric ground state dynamically evolves into a doubly-degenerate SSB ground state. If the SSB ground state in the double well, predominantly located in the first well (z > 0), is given a small displacement, the quantum ball oscillates with a self-trapping in the first well. For a medium displacement one encounters an asymmetric Josephson oscillation. The asymmetric oscillation is a consequence of SSB. The study is performed by a variational and a numerical solution of a non-linear mean-field model with 1D parity-symmetric perturbations. |
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Repositório Institucional da UNESP |
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Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ballWe study spontaneous symmetry breaking (SSB), Josephson oscillation, and self-trapping in a stable, mobile, three-dimensional matter-wave spherical quantum ball self-bound by attractive two-body and repulsive three-body interactions. The SSB is realized by a parity-symmetric (a) one-dimensional (1D) double-well potential or (b) a 1D Gaussian potential, both along the z axis and no potential along the x and y axes. In the presence of each of these potentials, the symmetric ground state dynamically evolves into a doubly-degenerate SSB ground state. If the SSB ground state in the double well, predominantly located in the first well (z > 0), is given a small displacement, the quantum ball oscillates with a self-trapping in the first well. For a medium displacement one encounters an asymmetric Josephson oscillation. The asymmetric oscillation is a consequence of SSB. The study is performed by a variational and a numerical solution of a non-linear mean-field model with 1D parity-symmetric perturbations.Instituto de Física Teórica UNESPInstituto de Física Teórica UNESPUniversidade Estadual Paulista (Unesp)Adhikari, S. K. [UNESP]2018-12-11T17:16:12Z2018-12-11T17:16:12Z2017-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1038/s41598-017-16106-wScientific Reports, v. 7, n. 1, 2017.2045-2322http://hdl.handle.net/11449/17553610.1038/s41598-017-16106-w2-s2.0-850348382012-s2.0-85034838201.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientific Reports1,533info:eu-repo/semantics/openAccess2023-11-14T06:15:08Zoai:repositorio.unesp.br:11449/175536Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:40:49.586632Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball |
title |
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball |
spellingShingle |
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball Adhikari, S. K. [UNESP] |
title_short |
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball |
title_full |
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball |
title_fullStr |
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball |
title_full_unstemmed |
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball |
title_sort |
Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball |
author |
Adhikari, S. K. [UNESP] |
author_facet |
Adhikari, S. K. [UNESP] |
author_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Adhikari, S. K. [UNESP] |
description |
We study spontaneous symmetry breaking (SSB), Josephson oscillation, and self-trapping in a stable, mobile, three-dimensional matter-wave spherical quantum ball self-bound by attractive two-body and repulsive three-body interactions. The SSB is realized by a parity-symmetric (a) one-dimensional (1D) double-well potential or (b) a 1D Gaussian potential, both along the z axis and no potential along the x and y axes. In the presence of each of these potentials, the symmetric ground state dynamically evolves into a doubly-degenerate SSB ground state. If the SSB ground state in the double well, predominantly located in the first well (z > 0), is given a small displacement, the quantum ball oscillates with a self-trapping in the first well. For a medium displacement one encounters an asymmetric Josephson oscillation. The asymmetric oscillation is a consequence of SSB. The study is performed by a variational and a numerical solution of a non-linear mean-field model with 1D parity-symmetric perturbations. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 2018-12-11T17:16:12Z 2018-12-11T17:16:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1038/s41598-017-16106-w Scientific Reports, v. 7, n. 1, 2017. 2045-2322 http://hdl.handle.net/11449/175536 10.1038/s41598-017-16106-w 2-s2.0-85034838201 2-s2.0-85034838201.pdf |
url |
http://dx.doi.org/10.1038/s41598-017-16106-w http://hdl.handle.net/11449/175536 |
identifier_str_mv |
Scientific Reports, v. 7, n. 1, 2017. 2045-2322 10.1038/s41598-017-16106-w 2-s2.0-85034838201 2-s2.0-85034838201.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientific Reports 1,533 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128843726192640 |