Wednesday, May 22, 2013

1305.4841 (Xiaoxiong Zeng et al.)

Holographic thermalization in Gauss-Bonnet gravity    [PDF]

Xiaoxiong Zeng, Wenbiao Liu
In the spirit of the AdS/CFT correspondence, we study the thermalization of the dual conformal field in the Gauss-Bonnet gravity by modeling a thin-shell of dust that interpolates between a pure AdS and a Gauss-Bonnet AdS black brane. The renormalized geodesic length and minimal surface area, which in the dual conformal field correspond to twopoint correlation function and expectation value of Wilson loop, are investigated respectively as thermalization probes. The result shows that as the Gauss-Bonnet coefficient increases, the thermalization time decreases for both the thermalization probes, which can also be confirmed by studying the motion profile of the geodesic and minimal surface area. In addition, for both the renormalized geodesic length and minimal surface area, there is an overlapped region for a fixed boundary separation, which implies that the Gauss-Bonnet coupling constant has few effect on the thermalization probes there.
View original: http://arxiv.org/abs/1305.4841

No comments:

Post a Comment