Bulk viscosity of gauge theory plasma at strong coupling
arXiv:0708.3459 · doi:10.1016/j.physletb.2008.03.069
Abstract
We propose a lower bound on bulk viscosity of strongly coupled gauge theory plasmas. Using explicit example of the N=2^* gauge theory plasma we show that the bulk viscosity remains finite at a critical point with a divergent specific heat. We present an estimate for the bulk viscosity of QGP plasma at RHIC.
5 pages, 4 figures
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