Holographic superfluids and the Landau criterion

We revisit the question of stability of holographic superfluids with finite super-fluid velocity. Our method is based on applying the Landau criterion to the Quasinormal Mode (QNM) spectrum. In particular we study the QNMs related to the Goldstone modes of spontaneous symmetry breaking with linear a...

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Detalles Bibliográficos
Autores: Amado, Irene, Areán, Daniel, Jiménez-Alba, Amadeo, Landsteiner, Karl, Melgar, Luis, Salazar, I.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/96562
Acceso en línea:http://hdl.handle.net/10261/96562
Access Level:acceso abierto
Palabra clave:AdS-CFT correspondence
Holography and quark-gluon plasmas
Holography and condensed matter physics (AdS/CMT)
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spelling Holographic superfluids and the Landau criterionAmado, IreneAreán, DanielJiménez-Alba, AmadeoLandsteiner, KarlMelgar, LuisSalazar, I.AdS-CFT correspondenceHolography and quark-gluon plasmasHolography and condensed matter physics (AdS/CMT)We revisit the question of stability of holographic superfluids with finite super-fluid velocity. Our method is based on applying the Landau criterion to the Quasinormal Mode (QNM) spectrum. In particular we study the QNMs related to the Goldstone modes of spontaneous symmetry breaking with linear and quadratic dispersions. In the linear case we show that the sound velocity becomes negative for large enough superfluid velocity and that the imaginary part of the quasinormal frequency moves to the upper half plane. Since the instability is strongest at finite wavelength, we take this as an indication for the existence of an inhomogeneous or striped condensed phase for large superfluid velocity. In the quadratic case the instability is present for arbitrarily small superfluid velocity.This work has been supported by MEC and FEDER grant FPA2012-32828, Consolider Ingenio Programme CPAN (CSD2007-00042), Comunidad de Madrid HEP-HACOS S2009/ESP-1473 and MINECO Centro de excelencia Severo Ochoa Program under grant SEV-2012-0249. I.A. is supported by the Israel Science Foundation under grants no. 392/09 and 495/11. L.M. has been supported by FPI-fellowship BES- 2010-041571. A.J. is supported by FPU fellowship AP2010-5686.Peer reviewedSpringer NatureSCOAP201420142014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/96562reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/JHEP02(2014)063info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/965622026-05-22T06:33:51Z
dc.title.none.fl_str_mv Holographic superfluids and the Landau criterion
title Holographic superfluids and the Landau criterion
spellingShingle Holographic superfluids and the Landau criterion
Amado, Irene
AdS-CFT correspondence
Holography and quark-gluon plasmas
Holography and condensed matter physics (AdS/CMT)
title_short Holographic superfluids and the Landau criterion
title_full Holographic superfluids and the Landau criterion
title_fullStr Holographic superfluids and the Landau criterion
title_full_unstemmed Holographic superfluids and the Landau criterion
title_sort Holographic superfluids and the Landau criterion
dc.creator.none.fl_str_mv Amado, Irene
Areán, Daniel
Jiménez-Alba, Amadeo
Landsteiner, Karl
Melgar, Luis
Salazar, I.
author Amado, Irene
author_facet Amado, Irene
Areán, Daniel
Jiménez-Alba, Amadeo
Landsteiner, Karl
Melgar, Luis
Salazar, I.
author_role author
author2 Areán, Daniel
Jiménez-Alba, Amadeo
Landsteiner, Karl
Melgar, Luis
Salazar, I.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv SCOAP
dc.subject.none.fl_str_mv AdS-CFT correspondence
Holography and quark-gluon plasmas
Holography and condensed matter physics (AdS/CMT)
topic AdS-CFT correspondence
Holography and quark-gluon plasmas
Holography and condensed matter physics (AdS/CMT)
description We revisit the question of stability of holographic superfluids with finite super-fluid velocity. Our method is based on applying the Landau criterion to the Quasinormal Mode (QNM) spectrum. In particular we study the QNMs related to the Goldstone modes of spontaneous symmetry breaking with linear and quadratic dispersions. In the linear case we show that the sound velocity becomes negative for large enough superfluid velocity and that the imaginary part of the quasinormal frequency moves to the upper half plane. Since the instability is strongest at finite wavelength, we take this as an indication for the existence of an inhomogeneous or striped condensed phase for large superfluid velocity. In the quadratic case the instability is present for arbitrarily small superfluid velocity.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/96562
url http://hdl.handle.net/10261/96562
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/JHEP02(2014)063
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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