Hydrodynamics of Holographic Superconductors

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dc.rights.license Attribution 4.0 International (CC BY 4.0) en_US
dc.contributor.author Amado, Irene
dc.contributor.author Kaminski, Matthias
dc.contributor.author Landsteiner, Karl
dc.date.accessioned 2018-09-07T18:38:29Z
dc.date.available 2018-09-07T18:38:29Z
dc.date.issued 2009-05-06
dc.identifier.citation Amado, I., Kaminski, M., Landsteiner, K. (2009): Hydrodynamics of Holographic Superconductors, Journal of High Energy Physics. http://dx.doi.org/10.1088/1126-6708/2009/05/021 en_US
dc.identifier.uri http://ir.ua.edu/handle/123456789/3822
dc.description.abstract We 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. en_US
dc.format.mimetype application/pdf en_US
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Gauge-gravity correspondence en_US
dc.subject AdS-CFT Correspondence en_US
dc.subject Thermal Field Theory en_US
dc.title Hydrodynamics of Holographic Superconductors en_US
dc.type text en_US

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Attribution 4.0 International (CC BY 4.0) Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)

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