Shear viscosity to entropy density ratio in six derivative gravity
نویسندگان
چکیده
منابع مشابه
The ratio of shear viscosity to entropy density in generalized theories of gravity
Near the horizon of a black brane solution in Anti-de Sitter space, the long-wavelength fluctuations of the metric exhibit hydrodynamic behaviour. For Einstein’s theory, the ratio of the shear viscosity of near-horizon metric fluctuations η to the entropy per unit of transverse volume s is η/s = 1/4π. We propose that, in generalized theories of gravity, this ratio is given by the ratio of two e...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2009
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2009/07/024