Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-08-04
Nucl.Phys.B812:470-487,2009
Physics
High Energy Physics
High Energy Physics - Theory
20 pages, latex file. v3: The final version, to appear in NPB
Scientific paper
10.1016/j.nuclphysb.2008.12.008
Using the duality conjecture between N=6 supersymmetric U(N)_k \times U(N)_{-k} Chern-Simons theory and M-theory on AdS_4 \times S^7/Z_{k}, we calculate the corrections to the shear viscosity of the field theory at temperature T. At strong 't Hooft coupling and at small k level, we have considered one-loop correction to the M-theory effective action. At large k level, we have considered the alpha' correction to the type IIA effective action. In both cases the correction to the ratio of shear viscosity to the entropy density is positive.
Garousi Mohammad R.
Ghodsi Ahmad
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