Superfluid Bose-Fermi mixture from weak coupling to unitarity
Autor(a) principal: | |
---|---|
Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.78.043616 http://hdl.handle.net/11449/225325 |
Resumo: | We investigate the zero-temperature properties of a superfluid Bose-Fermi mixture by introducing a set of coupled Galilei-invariant nonlinear Schrödinger equations valid from weak coupling to unitarity. The Bose dynamics is described by a Gross-Pitaevskii-type equation including beyond-mean-field corrections possessing the correct weak-coupling and unitarity limits. The dynamics of the two-component Fermi superfluid is described by a density-functional equation including beyond-mean-field terms with correct weak-coupling and unitarity limits. The present set of equations is equivalent to the equations of generalized superfluid hydrodynamics, which take into account also surface effects. The equations describe the mixture properly as the Bose-Bose repulsive (positive) and Fermi-Fermi attractive (negative) scattering lengths are varied from zero to infinity in the presence of a Bose-Fermi interaction. The present model is tested numerically as the Bose-Bose and Fermi-Fermi scattering lengths are varied over wide ranges covering the weak-coupling to unitarity transition. © 2008 The American Physical Society. |
id |
UNSP_a58cdf2d2b748a1b6dd8eb4ec4d5561a |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/225325 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Superfluid Bose-Fermi mixture from weak coupling to unitarityWe investigate the zero-temperature properties of a superfluid Bose-Fermi mixture by introducing a set of coupled Galilei-invariant nonlinear Schrödinger equations valid from weak coupling to unitarity. The Bose dynamics is described by a Gross-Pitaevskii-type equation including beyond-mean-field corrections possessing the correct weak-coupling and unitarity limits. The dynamics of the two-component Fermi superfluid is described by a density-functional equation including beyond-mean-field terms with correct weak-coupling and unitarity limits. The present set of equations is equivalent to the equations of generalized superfluid hydrodynamics, which take into account also surface effects. The equations describe the mixture properly as the Bose-Bose repulsive (positive) and Fermi-Fermi attractive (negative) scattering lengths are varied from zero to infinity in the presence of a Bose-Fermi interaction. The present model is tested numerically as the Bose-Bose and Fermi-Fermi scattering lengths are varied over wide ranges covering the weak-coupling to unitarity transition. © 2008 The American Physical Society.Instituto de Física Teórica UNESP-São Paulo State University, 01405-900 São Paulo, SPDepartment of Physics Galileo Galilei Unit of Padua University of Padua, 35122 PaduaInstituto de Física Teórica UNESP-São Paulo State University, 01405-900 São Paulo, SPUniversidade Estadual Paulista (UNESP)University of PaduaAdhikari, S. K. [UNESP]Salasnich, Luca2022-04-28T20:45:05Z2022-04-28T20:45:05Z2008-10-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevA.78.043616Physical Review A - Atomic, Molecular, and Optical Physics, v. 78, n. 4, 2008.1050-29471094-1622http://hdl.handle.net/11449/22532510.1103/PhysRevA.78.0436162-s2.0-55749101767Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review A - Atomic, Molecular, and Optical Physicsinfo:eu-repo/semantics/openAccess2022-04-28T20:45:05Zoai:repositorio.unesp.br:11449/225325Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:59:47.071198Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Superfluid Bose-Fermi mixture from weak coupling to unitarity |
title |
Superfluid Bose-Fermi mixture from weak coupling to unitarity |
spellingShingle |
Superfluid Bose-Fermi mixture from weak coupling to unitarity Adhikari, S. K. [UNESP] |
title_short |
Superfluid Bose-Fermi mixture from weak coupling to unitarity |
title_full |
Superfluid Bose-Fermi mixture from weak coupling to unitarity |
title_fullStr |
Superfluid Bose-Fermi mixture from weak coupling to unitarity |
title_full_unstemmed |
Superfluid Bose-Fermi mixture from weak coupling to unitarity |
title_sort |
Superfluid Bose-Fermi mixture from weak coupling to unitarity |
author |
Adhikari, S. K. [UNESP] |
author_facet |
Adhikari, S. K. [UNESP] Salasnich, Luca |
author_role |
author |
author2 |
Salasnich, Luca |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) University of Padua |
dc.contributor.author.fl_str_mv |
Adhikari, S. K. [UNESP] Salasnich, Luca |
description |
We investigate the zero-temperature properties of a superfluid Bose-Fermi mixture by introducing a set of coupled Galilei-invariant nonlinear Schrödinger equations valid from weak coupling to unitarity. The Bose dynamics is described by a Gross-Pitaevskii-type equation including beyond-mean-field corrections possessing the correct weak-coupling and unitarity limits. The dynamics of the two-component Fermi superfluid is described by a density-functional equation including beyond-mean-field terms with correct weak-coupling and unitarity limits. The present set of equations is equivalent to the equations of generalized superfluid hydrodynamics, which take into account also surface effects. The equations describe the mixture properly as the Bose-Bose repulsive (positive) and Fermi-Fermi attractive (negative) scattering lengths are varied from zero to infinity in the presence of a Bose-Fermi interaction. The present model is tested numerically as the Bose-Bose and Fermi-Fermi scattering lengths are varied over wide ranges covering the weak-coupling to unitarity transition. © 2008 The American Physical Society. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-10-30 2022-04-28T20:45:05Z 2022-04-28T20:45:05Z |
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.78.043616 Physical Review A - Atomic, Molecular, and Optical Physics, v. 78, n. 4, 2008. 1050-2947 1094-1622 http://hdl.handle.net/11449/225325 10.1103/PhysRevA.78.043616 2-s2.0-55749101767 |
url |
http://dx.doi.org/10.1103/PhysRevA.78.043616 http://hdl.handle.net/11449/225325 |
identifier_str_mv |
Physical Review A - Atomic, Molecular, and Optical Physics, v. 78, n. 4, 2008. 1050-2947 1094-1622 10.1103/PhysRevA.78.043616 2-s2.0-55749101767 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review A - Atomic, Molecular, and Optical Physics |
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_ |
1808129147607711744 |