Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.100.063618 http://hdl.handle.net/11449/199873 |
Resumo: | We study the phase separation in three-component bright vector solitons in a quasi-one-dimensional spin-orbit-coupled hyperfine spin F=1 ferromagnetic Bose-Einstein condensate upon an increase of the strength of spin-orbit (SO) coupling pxςz above a critical value, where px is the linear momentum and ςz is the z component of the spin-1 matrix. The bright vector solitons are demonstrated to be mobile and dynamically stable. The collision between two such vector solitons is found to be elastic at all velocities with the conservation of density of each vector soliton. The two colliding vector solitons repel at small separation and at very small colliding velocity, they come close and bounce back with the same velocity without ever encountering each other. This repulsion produced by SO coupling is responsible for the phase separation in a vector soliton for large strengths of SO coupling. The collision dynamics is found to be completely insensitive to the relative phase of the colliding solitons. However, in the absence of SO coupling, at very small velocity, the two colliding vector solitons attract each other and form a vector soliton molecule and the collision dynamics is sensitive to the relative phase as in scalar solitons. The present investigation is carried out through a numerical solution and an analytic variational approximation of the underlying mean-field Gross-Pitaevskii equation. |
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Repositório Institucional da UNESP |
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spelling |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensatesWe study the phase separation in three-component bright vector solitons in a quasi-one-dimensional spin-orbit-coupled hyperfine spin F=1 ferromagnetic Bose-Einstein condensate upon an increase of the strength of spin-orbit (SO) coupling pxςz above a critical value, where px is the linear momentum and ςz is the z component of the spin-1 matrix. The bright vector solitons are demonstrated to be mobile and dynamically stable. The collision between two such vector solitons is found to be elastic at all velocities with the conservation of density of each vector soliton. The two colliding vector solitons repel at small separation and at very small colliding velocity, they come close and bounce back with the same velocity without ever encountering each other. This repulsion produced by SO coupling is responsible for the phase separation in a vector soliton for large strengths of SO coupling. The collision dynamics is found to be completely insensitive to the relative phase of the colliding solitons. However, in the absence of SO coupling, at very small velocity, the two colliding vector solitons attract each other and form a vector soliton molecule and the collision dynamics is sensitive to the relative phase as in scalar solitons. The present investigation is carried out through a numerical solution and an analytic variational approximation of the underlying mean-field Gross-Pitaevskii equation.Instituto de Física Teórica Universidade Estadual Paulista-UNESPInstituto de Física Teórica Universidade Estadual Paulista-UNESPUniversidade Estadual Paulista (Unesp)Adhikari, S. K. [UNESP]2020-12-12T01:51:34Z2020-12-12T01:51:34Z2019-12-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevA.100.063618Physical Review A, v. 100, n. 6, 2019.2469-99342469-9926http://hdl.handle.net/11449/19987310.1103/PhysRevA.100.0636182-s2.0-85077122412Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Ainfo:eu-repo/semantics/openAccess2021-10-23T08:53:50Zoai:repositorio.unesp.br:11449/199873Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T08:53:50Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates |
title |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates |
spellingShingle |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates Adhikari, S. K. [UNESP] |
title_short |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates |
title_full |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates |
title_fullStr |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates |
title_full_unstemmed |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates |
title_sort |
Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates |
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 the phase separation in three-component bright vector solitons in a quasi-one-dimensional spin-orbit-coupled hyperfine spin F=1 ferromagnetic Bose-Einstein condensate upon an increase of the strength of spin-orbit (SO) coupling pxςz above a critical value, where px is the linear momentum and ςz is the z component of the spin-1 matrix. The bright vector solitons are demonstrated to be mobile and dynamically stable. The collision between two such vector solitons is found to be elastic at all velocities with the conservation of density of each vector soliton. The two colliding vector solitons repel at small separation and at very small colliding velocity, they come close and bounce back with the same velocity without ever encountering each other. This repulsion produced by SO coupling is responsible for the phase separation in a vector soliton for large strengths of SO coupling. The collision dynamics is found to be completely insensitive to the relative phase of the colliding solitons. However, in the absence of SO coupling, at very small velocity, the two colliding vector solitons attract each other and form a vector soliton molecule and the collision dynamics is sensitive to the relative phase as in scalar solitons. The present investigation is carried out through a numerical solution and an analytic variational approximation of the underlying mean-field Gross-Pitaevskii equation. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-06 2020-12-12T01:51:34Z 2020-12-12T01:51:34Z |
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/10.1103/PhysRevA.100.063618 Physical Review A, v. 100, n. 6, 2019. 2469-9934 2469-9926 http://hdl.handle.net/11449/199873 10.1103/PhysRevA.100.063618 2-s2.0-85077122412 |
url |
http://dx.doi.org/10.1103/PhysRevA.100.063618 http://hdl.handle.net/11449/199873 |
identifier_str_mv |
Physical Review A, v. 100, n. 6, 2019. 2469-9934 2469-9926 10.1103/PhysRevA.100.063618 2-s2.0-85077122412 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review A |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1799965513090072576 |