Shear Viscosity from Gauss-Bonnet Gravity with a Dilaton Coupling

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dc.creatorCai, Rong-Gen
dc.creatorNie, Zhang-Yu
dc.creatorOhta, Nobuyoshi
dc.creatorSun, Ya-Wen
dc.date2009-01-11
dc.date2009-02-27
dc.date.accessioned2026-07-07T12:55:25Z
dc.date.available2026-07-07T12:55:25Z
dc.descriptionWe calculate the shear viscosity of field theories with gravity duals of Gauss-Bonnet gravity with a non-trivial dilaton using AdS/CFT. We find that the dilaton filed has a non-trivial contribution to the ratio of shear viscosity over entropy density and after imposing causal constraint for the boundary field theory, the new lower bound $4/25π$, obtained from pure Gauss-Bonnet gravity, may have a small violation.
dc.description17 pages, no figures, version to appear in PRD
dc.identifierhttps://arxiv.org/abs/0901.1421
dc.identifierhttp://arxiv.org/abs/0901.1421
dc.identifierPhys.Rev.D79:066004,2009
dc.identifierdoi:10.1103/PhysRevD.79.066004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224247
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectNuclear Theory
dc.titleShear Viscosity from Gauss-Bonnet Gravity with a Dilaton Coupling
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