Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-12-21
JHEP0002:039,2000
Physics
High Energy Physics
High Energy Physics - Theory
20 pages, 2 figures, uses epsf.sty. v2: References added
Scientific paper
10.1088/1126-6708/2000/02/039
We investigate black hole formation by a spherically collapsing thin shell of matter in AdS space. This process has been suggested to have a holographic interpretation as thermalization of the CFT on the boundary of the AdS space. The AdS/CFT duality relates the shell in the bulk to an off-equilibrium state of the boundary theory which evolves towards a thermal equilibrium when the shell collapses to a black hole. We use 2-point functions to obtain information about the spectrum of excitations in the off-equilibrium state, and discuss how it characterizes the approach towards thermal equilibrium. The full holographic interpretation of the gravitational collapse would require a kinetic theory of the CFT at strong coupling. We speculate that the kinetic equations should be interpreted as a holographic dual of the equation of motion of the collapsing shell.
Danielsson Ulf H.
Keski-Vakkuri Esko
Kruczenski Martin
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