A self-bound matter-wave boson-fermion quantum ball
Autor(a) principal: | |
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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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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:29462024-08-05T14:11:21.461664Repositório 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 |
|
_version_ |
1808128329867329536 |