Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-10-25
JHEP 1004:090,2010
Physics
High Energy Physics
High Energy Physics - Theory
23 pages, no figure; v2, refs added; v3, more refs added; v4, version to appear in JHEP
Scientific paper
10.1007/JHEP04(2010)090
We calculate the shear viscosity of strongly coupled field theories dual to Gauss-Bonnet gravity at zero temperature with nonzero chemical potential. We find that the ratio of the shear viscosity over the entropy density is $1/4\pi$, which is in accordance with the zero temperature limit of the ratio at nonzero temperatures. We also calculate the DC conductivity for this system at zero temperature and find that the real part of the DC conductivity vanishes up to a delta function, which is similar to the result in Einstein gravity. We show that at zero temperature, we can still have the conclusion that the shear viscosity is fully determined by the effective coupling of transverse gravitons in a kind of theories that the effective action of transverse gravitons can be written into a form of minimally coupled scalars with a deformed effective coupling.
Cai Rong-Gen
Liu Yan
Sun Ya-Wen
No associations
LandOfFree
Transport Coefficients from Extremal Gauss-Bonnet Black Holes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Transport Coefficients from Extremal Gauss-Bonnet Black Holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transport Coefficients from Extremal Gauss-Bonnet Black Holes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-450115