Date: 
September 19, 2008, 15:30  17:00 
Place: 
Seminar Room at IPMU Prefab. B, Kashiwa Campus of the University of Tokyo 
Speaker: 
Shin Nakamura (Center for Quantum Spacetime (CQUeST), Sogang University) 
Title: 
A Holographic Dual of Bjorken Flow

Abstract: 
We construct a consistent holographic dual of Bjorken flow of an N=4
> SYMtheory plasma. Bjorken flow is the most standard flow of the
> quarkgluon plasma at RHIC and LHC. A holographic model of this flow
> has already been proposed by Janik and other people, but the failure
> of the model has also been reported. We overcome the problem and
> propose a consistent dual. We show that the dual geometry is a
> timedependent black hole, and the transport coefficients (like shear
> viscosity) of the plasma are determined uniquely by the regularity of
> the geometry. We also demonstrate that the hydrodynamic equation is
> encoded in the 5d Einstein equation at the vicinity of the boundary.
> This is a welldefined concrete example of timedependent AdS/CFT. I
> believe works along this direction open a possibility to use gravity
> as a new tool of studying unsolved problems in fluid dynamics like
> turbulence. (Reference: arXiv:0807.3797)
