Transverse Shear Viscosity to Entropy Density for the General Anisotropic Black Brane in Horava-Lifshitz Gravity

Abstract

In this paper we calculate the ratio of transverse shear viscosity to entropy density for the general anisotropic black brane in Horava-Lifshitz gravity. There is a well-known conjecture that states this ratio should be larger than $\frac{1}{4\pi }$. The ratio of shear viscosity to entropy density is proportional to the inverse square coupling of quantum thermal field theory,$\frac{\eta }{s}\sim \frac{1}{{\lambda }^2}$. Especially in QFT with gravity dual the stronger coupling means the shear viscosity per entropy density gets closer to the lower bound of $\frac{1}{4\pi }$. The KSS bound preserves in the anisotropic scaling model.

arXiv comment7 pages,to appear in INJP

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• The Effect of Bulk Dimension in the presence of String Cloud on Viscosity Bound
• AdS Black Hole with Cylindrical Symmetry