English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/17793
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 0 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Hydrodynamics of Holographic Superconductors

AutorAmado, Irene ; Kaminski, Matthias ; Landsteiner, Karl
Palabras claveAdS-CFT Correspondence
Thermal Field Theory
Gauge-gravity correspondence
Superconductivity
Holography
Fecha de publicación6-may-2009
EditorInstitute of Physics Publishing
International School for Advanced Studies
CitaciónJournal of High Energy Physics 05(021): (2009)
ResumenWe study the poles of the retarded Green functions of a holographic superconductor. The model shows a second order phase transition where a charged scalar operator condenses and a U(1) symmetry is spontaneously broken. The poles of the holographic Green functions are the quasinormal modes in an AdS black hole background. We study the spectrum of quasinormal frequencies in the broken phase, where we establish the appearance of a massless or hydrodynamic mode at the critical temperature as expected for a second order phase transition. In the broken phase we find the pole representing second sound. We compute the speed of second sound and its attenuation length as function of the temperature. In addition we find a pseudo diffusion mode, whose frequencies are purely imaginary but with a non-zero gap at zero momentum. This gap goes to zero at the critical temperature. As a technical side result we explain how to calculate holographic Green functions and their quasinormal modes for a set of operators that mix under the RG flow.
Descripción27 pages, 10 figures.-- Pre-print archive.
Versión del editorhttp://dx.doi.org/10.1088/1126-6708/2009/05/021
URIhttp://hdl.handle.net/10261/17793
DOI10.1088/1126-6708/2009/05/021
ISSN1126-6708
Aparece en las colecciones: (IFT) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
0903.2209v3.pdf319,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.