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Title: Strong Coupling Isotropization of Non-Abelian Plasmas Simplified
Author: Heller, Michal P.
Mateos, David (Mateos Solé)
Schee, Wilke van der, 1987-
Trancanelli, Diego
Keywords: Equacions de camp d'Einstein
Einstein field equations
Issue Date: 9-May-2012
Publisher: American Physical Society
Abstract: We study the isotropization of a homogeneous, strongly coupled, non-Abelian plasma by means of its gravity dual. We compare the time evolution of a large number of initially anisotropic states as determined, on the one hand, by the full nonlinear Einstein's equations and, on the other, by the Einstein's equations linearized around the final equilibrium state. The linear approximation works remarkably well even for states that exhibit large anisotropies. For example, it predicts with a 20% accuracy the isotropization time, which is of the order of t iso ≲ 1 / T , with T the final equilibrium temperature. We comment on possible extensions to less symmetric situations.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2012, vol. 108, num. 19, p. 191601
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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