Dissipative Bjorken hydrodynamics from an AdS Schwarzschild black hole

Details Dissipative Bjorken hydrodynamics from an AdS Schwarzschild black hole Dissipative Bjorken hydrodynamics from an AdS Schwarzschild black hole

2008-12-09

arxiv.org/abs/0812.1818v2

Phys.Rev.D79:066011,2009

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, improved discussion of singularities, version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.79.066011

We discuss the derivation of dissipative Bjorken hydrodynamics from a Schwarzschild black hole in asymptotically AdS spacetime of arbitrary dimension in the limit of large longitudinal proper time $\tau$. Using an appropriate slicing near the boundary, we calculate the Schwarzschild metric to next-to-next-to-leading order in the large $\tau$ expansion as well as the dual stress-energy tensor on the boundary via holographic renormalization. At next-to-next-to-leading order, it is necessary to perturb the Schwarzschild metric in order to maintain boost invariance. The perturbation has a power law time dependence and leads to the same value of the ratio of viscosity to entropy density, $1/(4\pi)$, as in the case of sinusoidal perturbations. Our results are in agreement with known time-dependent asymptotic solutions of the Einstein equations in five dimensions.

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