Transport properties of cascading gauge theories

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dc.creatorBuchel, Alex
dc.date2005-09-12
dc.date.accessioned2026-07-07T10:30:16Z
dc.date.available2026-07-07T10:30:16Z
dc.descriptionCascading gauge theories of Klebanov et.al. provide a model within a framework of gauge theory/string theory duality for a four dimensional non-conformal gauge theory with a spontaneously generated mass scale. Using the dual supergravity description we study sound wave propagation in strongly coupled cascading gauge theory plasma. We analytically compute the speed of sound and the bulk viscosity of cascading gauge theory plasma at a temperature much larger than the strong coupling scale of the theory. The sound wave dispersion relation is obtained from the hydrodynamic pole in the stress-energy tensor two-point correlation function. The speed of sound extracted from the pole of the correlation function agrees with its value computed in [hep-th/0506002] using the equation of state. We find that the bulk viscosity of the hot cascading gauge theory plasma is non-zero at the leading order in the deviation from conformality.
dc.description30 pages, (18 pages + appendicies), latex
dc.identifierhttps://arxiv.org/abs/hep-th/0509083
dc.identifierhttp://arxiv.org/abs/hep-th/0509083
dc.identifierPhys.Rev.D72:106002,2005
dc.identifierdoi:10.1103/PhysRevD.72.106002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178079
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleTransport properties of cascading gauge theories
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