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 principales:	Amado, Irene, Areán, Daniel, Jiménez Alba, Amadeo, Landsteiner, Karl, Melgar, Luis, Salazar Landea, Ignacio
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2014
Materias:	Ciencias Exactas Física AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT) Holography and quark-gluon plasmas
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/85077
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-85077
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Exactas Física AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT) Holography and quark-gluon plasmas
spellingShingle	Ciencias Exactas Física AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT) Holography and quark-gluon plasmas Amado, Irene Areán, Daniel Jiménez Alba, Amadeo Landsteiner, Karl Melgar, Luis Salazar Landea, Ignacio Holographic superfluids and the Landau criterion
topic_facet	Ciencias Exactas Física AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT) Holography and quark-gluon plasmas
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.
format	Articulo Articulo
author	Amado, Irene Areán, Daniel Jiménez Alba, Amadeo Landsteiner, Karl Melgar, Luis Salazar Landea, Ignacio
author_facet	Amado, Irene Areán, Daniel Jiménez Alba, Amadeo Landsteiner, Karl Melgar, Luis Salazar Landea, Ignacio
author_sort	Amado, Irene
title	Holographic superfluids and the Landau criterion
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
publishDate	2014
url	http://sedici.unlp.edu.ar/handle/10915/85077
work_keys_str_mv	AT amadoirene holographicsuperfluidsandthelandaucriterion AT areandaniel holographicsuperfluidsandthelandaucriterion AT jimenezalbaamadeo holographicsuperfluidsandthelandaucriterion AT landsteinerkarl holographicsuperfluidsandthelandaucriterion AT melgarluis holographicsuperfluidsandthelandaucriterion AT salazarlandeaignacio holographicsuperfluidsandthelandaucriterion
bdutipo_str	Repositorios
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Holographic superfluids and the Landau criterion

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