Two-dimensional Hawking radiation from the AdS/CFT correspondence

Details Two-dimensional Hawking radiation from the AdS/CFT correspondence Two-dimensional Hawking radiation from the AdS/CFT correspondence

2008-04-04

arxiv.org/abs/0804.0789v1

Physics

High Energy Physics

High Energy Physics - Theory

4 pages

Scientific paper

The AdS/CFT correspondence has been tested through the reproduction of standard results. Following this approach, we use the correspondence to obtain the Hawking temperature of a black hole in 1+1 dimensions. Using an auxiliary Liouville field, the holographic energy-momentum tensor is found and compared with a radiation energy-momentum tensor, verifying that the correspondence gives the correct temperature. The information about the radiated field in the CFT sector is contained in the central charge, whereas in the radiation tensor this information is in the statistical distribution. This result allows to determine the radiation of scalar and Dirac fields easily and without the necessity of solving the corresponding Klein-Gordon or Dirac equation in a curved spacetime. In both cases, the correct temperature was obtained.

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