Ordered structures in rotating ultracold Bose gases

Two-dimentional systems of trapped samples of few cold bosonic atoms submitted to strong rotation around the perpendicular axis may be realized in optical lattices and microtraps. We investigate theoretically the evolution of ground state structures of such systems as the rotational frequency Omega...

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Detalhes bibliográficos
Autores: Barberán Falcón, Núria, Lewenstein, Maciej, Osterloh, Klaus, Dagnino, D.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/9643
Acesso em linha:https://hdl.handle.net/2445/9643
Access Level:acceso abierto
Palavra-chave:Bose-Einstein condensation
Efecte Hall
Efecte Hall quàntic
Condensació de Bose-Einstein
Quantum Hall effect
Tunneling (Physics)
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spelling Ordered structures in rotating ultracold Bose gasesBarberán Falcón, NúriaLewenstein, MaciejOsterloh, KlausDagnino, D.Bose-Einstein condensationEfecte HallEfecte Hall quànticCondensació de Bose-EinsteinQuantum Hall effectTunneling (Physics)Two-dimentional systems of trapped samples of few cold bosonic atoms submitted to strong rotation around the perpendicular axis may be realized in optical lattices and microtraps. We investigate theoretically the evolution of ground state structures of such systems as the rotational frequency Omega increases. Various kinds of ordered structures are observed. In some cases, hidden interference patterns exhibit themselves only in the pair correlation function; in some other cases explicit broken-symmetry structures appear that modulate the density. For N < 10 atoms, the standard scenario, valid for large sytems is absent, and is only gradually recovered as N increases. On the one hand, the Laughlin state in the strong rotational regime contains ordered structures much more similar to a Wigner molecule than to a fermionic quantum liquid. On the other hand, in the weak rotational regime, the possibility to obtain equilibrium states, whose density reveals an array of vortices, is restricted to the vicinity of some critical values of the rotational frequency Omega.The American Physical Society200920092006info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion13 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/9643Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.73.063623Physical Review A, 2006, vol. 73, núm. 6, p. 063623.http://dx.doi.org/10.1103/PhysRevA.73.063623(c) The American Physical Society, 2006info:eu-repo/semantics/openAccessoai:recercat.cat:2445/96432026-05-29T05:05:01Z
dc.title.none.fl_str_mv Ordered structures in rotating ultracold Bose gases
title Ordered structures in rotating ultracold Bose gases
spellingShingle Ordered structures in rotating ultracold Bose gases
Barberán Falcón, Núria
Bose-Einstein condensation
Efecte Hall
Efecte Hall quàntic
Condensació de Bose-Einstein
Quantum Hall effect
Tunneling (Physics)
title_short Ordered structures in rotating ultracold Bose gases
title_full Ordered structures in rotating ultracold Bose gases
title_fullStr Ordered structures in rotating ultracold Bose gases
title_full_unstemmed Ordered structures in rotating ultracold Bose gases
title_sort Ordered structures in rotating ultracold Bose gases
dc.creator.none.fl_str_mv Barberán Falcón, Núria
Lewenstein, Maciej
Osterloh, Klaus
Dagnino, D.
author Barberán Falcón, Núria
author_facet Barberán Falcón, Núria
Lewenstein, Maciej
Osterloh, Klaus
Dagnino, D.
author_role author
author2 Lewenstein, Maciej
Osterloh, Klaus
Dagnino, D.
author2_role author
author
author
dc.subject.none.fl_str_mv Bose-Einstein condensation
Efecte Hall
Efecte Hall quàntic
Condensació de Bose-Einstein
Quantum Hall effect
Tunneling (Physics)
topic Bose-Einstein condensation
Efecte Hall
Efecte Hall quàntic
Condensació de Bose-Einstein
Quantum Hall effect
Tunneling (Physics)
description Two-dimentional systems of trapped samples of few cold bosonic atoms submitted to strong rotation around the perpendicular axis may be realized in optical lattices and microtraps. We investigate theoretically the evolution of ground state structures of such systems as the rotational frequency Omega increases. Various kinds of ordered structures are observed. In some cases, hidden interference patterns exhibit themselves only in the pair correlation function; in some other cases explicit broken-symmetry structures appear that modulate the density. For N < 10 atoms, the standard scenario, valid for large sytems is absent, and is only gradually recovered as N increases. On the one hand, the Laughlin state in the strong rotational regime contains ordered structures much more similar to a Wigner molecule than to a fermionic quantum liquid. On the other hand, in the weak rotational regime, the possibility to obtain equilibrium states, whose density reveals an array of vortices, is restricted to the vicinity of some critical values of the rotational frequency Omega.
publishDate 2006
dc.date.none.fl_str_mv 2006
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/9643
url https://hdl.handle.net/2445/9643
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.73.063623
Physical Review A, 2006, vol. 73, núm. 6, p. 063623.
http://dx.doi.org/10.1103/PhysRevA.73.063623
dc.rights.none.fl_str_mv (c) The American Physical Society, 2006
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 2006
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 13 p.
application/pdf
application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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