Universality of the shear viscosity in supergravity
classification
✦ hep-th
keywords
boundshearsupergravityviscosityadmitalwaysarguecoupling
read the original abstract
Kovtun, Son and Starinets proposed a bound on the shear viscosity of any fluid in terms of its entropy density. We argue that this bound is always saturated for gauge theories at large 't Hooft coupling, which admit holographically dual supergravity description.
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