| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10722920 | Physics Letters B | 2011 | 4 Pages |
Abstract
A very famous result of gauge/gravity duality is the universality of the ratio of shear viscosity to entropy density in every field theory holographically dual to classical, two-derivative (Einstein) gravity. We present a way to obtain deviation from this universality by breaking the rotational symmetry spontaneously. In anisotropic fluids additional shear modes exist and their corresponding shear viscosities may be non-universal. We confirm this by explicitly calculating the shear viscosities in a transversely isotropic background, a p-wave superfluid, and study its critical behavior. This is a first decisive step towards further applications of gauge/gravity duality to physical systems.
Related Topics
Physical Sciences and Engineering
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Authors
Johanna Erdmenger, Patrick Kerner, Hansjörg Zeller,