A self-bound matter-wave boson-fermion quantum ball

Detalhes bibliográficos
Autor(a) principal: Adhikari, S. K. [UNESP]
Data de Publicação: 2018
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1088/1612-202X/aacb0a
http://hdl.handle.net/11449/176704
Resumo: We demonstrate the possibility of creating a self-bound stable three-dimensional matter-wave spherical boson-fermion quantum ball in the presence of an attractive boson-fermion interaction and a small repulsive three-boson interaction. The two-boson interaction could be attractive or repulsive whereas the fermions are taken to be in a fully-paired super-fluid state in the Bardeen-Cooper-Schreifer (quasi-noninteracting weak-coupling) limit. We also include the Lee-Huang-Yang (LHY) correction to a repulsive bosonic interaction term. The repulsive three-boson interaction and the LHY correction can stop a global collapse while acting jointly or separately. The present study is based on a mean-field model, where the bosons are subject to a Gross-Pitaevskii (GP) Lagrangian functional and the fully-paired fermions are described by a Galilean-invariant density functional Lagrangian. The boson-fermion interaction is taken to be the mean-field Hartree interaction, quite similar to the interaction term in the GP equation. The study is illustrated by a variational and a numerical solution of the mean-field model for the boson-fermion 7Li-6Li system.
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spelling A self-bound matter-wave boson-fermion quantum ballBose-Einstein condensatesolitonsuperfluid fermionWe demonstrate the possibility of creating a self-bound stable three-dimensional matter-wave spherical boson-fermion quantum ball in the presence of an attractive boson-fermion interaction and a small repulsive three-boson interaction. The two-boson interaction could be attractive or repulsive whereas the fermions are taken to be in a fully-paired super-fluid state in the Bardeen-Cooper-Schreifer (quasi-noninteracting weak-coupling) limit. We also include the Lee-Huang-Yang (LHY) correction to a repulsive bosonic interaction term. The repulsive three-boson interaction and the LHY correction can stop a global collapse while acting jointly or separately. The present study is based on a mean-field model, where the bosons are subject to a Gross-Pitaevskii (GP) Lagrangian functional and the fully-paired fermions are described by a Galilean-invariant density functional Lagrangian. The boson-fermion interaction is taken to be the mean-field Hartree interaction, quite similar to the interaction term in the GP equation. The study is illustrated by a variational and a numerical solution of the mean-field model for the boson-fermion 7Li-6Li system.Instituto de Física Teórica UNESP-Universidade Estadual PaulistaInstituto de Física Teórica UNESP-Universidade Estadual PaulistaUniversidade Estadual Paulista (Unesp)Adhikari, S. K. [UNESP]2018-12-11T17:22:08Z2018-12-11T17:22:08Z2018-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1088/1612-202X/aacb0aLaser Physics Letters, v. 15, n. 9, 2018.1612-202X1612-2011http://hdl.handle.net/11449/17670410.1088/1612-202X/aacb0a2-s2.0-850513715762-s2.0-85051371576.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLaser Physics Letters0,818info:eu-repo/semantics/openAccess2023-10-06T06:09:11Zoai:repositorio.unesp.br:11449/176704Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-06T06:09:11Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv A self-bound matter-wave boson-fermion quantum ball
title A self-bound matter-wave boson-fermion quantum ball
spellingShingle A self-bound matter-wave boson-fermion quantum ball
Adhikari, S. K. [UNESP]
Bose-Einstein condensate
soliton
superfluid fermion
title_short A self-bound matter-wave boson-fermion quantum ball
title_full A self-bound matter-wave boson-fermion quantum ball
title_fullStr A self-bound matter-wave boson-fermion quantum ball
title_full_unstemmed A self-bound matter-wave boson-fermion quantum ball
title_sort A self-bound matter-wave boson-fermion 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]
dc.subject.por.fl_str_mv Bose-Einstein condensate
soliton
superfluid fermion
topic Bose-Einstein condensate
soliton
superfluid fermion
description We demonstrate the possibility of creating a self-bound stable three-dimensional matter-wave spherical boson-fermion quantum ball in the presence of an attractive boson-fermion interaction and a small repulsive three-boson interaction. The two-boson interaction could be attractive or repulsive whereas the fermions are taken to be in a fully-paired super-fluid state in the Bardeen-Cooper-Schreifer (quasi-noninteracting weak-coupling) limit. We also include the Lee-Huang-Yang (LHY) correction to a repulsive bosonic interaction term. The repulsive three-boson interaction and the LHY correction can stop a global collapse while acting jointly or separately. The present study is based on a mean-field model, where the bosons are subject to a Gross-Pitaevskii (GP) Lagrangian functional and the fully-paired fermions are described by a Galilean-invariant density functional Lagrangian. The boson-fermion interaction is taken to be the mean-field Hartree interaction, quite similar to the interaction term in the GP equation. The study is illustrated by a variational and a numerical solution of the mean-field model for the boson-fermion 7Li-6Li system.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-11T17:22:08Z
2018-12-11T17:22:08Z
2018-09-01
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/10.1088/1612-202X/aacb0a
Laser Physics Letters, v. 15, n. 9, 2018.
1612-202X
1612-2011
http://hdl.handle.net/11449/176704
10.1088/1612-202X/aacb0a
2-s2.0-85051371576
2-s2.0-85051371576.pdf
url http://dx.doi.org/10.1088/1612-202X/aacb0a
http://hdl.handle.net/11449/176704
identifier_str_mv Laser Physics Letters, v. 15, n. 9, 2018.
1612-202X
1612-2011
10.1088/1612-202X/aacb0a
2-s2.0-85051371576
2-s2.0-85051371576.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Laser Physics Letters
0,818
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
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