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Vacuum states for AdS2 black holes

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47390 Marcus_Spradlin_1999.pdf (441.35 KB)

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1999

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10.1088/1126-6708/1999/11/021

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Springer Verlag
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Spradlin, Marcus, and Andrew Strominger. 1999. “Vacuum States for AdS2 Black Holes.” Journal of High Energy Physics 1999 (11): 021–021. https://doi.org/10.1088/1126-6708/1999/11/021.

Abstract

An AdS(2) black hole spacetime is an AdS(2) spacetime together with a preferred choice of time. The Boulware, Hartle-Hawking and SL(2; R) invariant vacua are constructed, together with their Green functions and stress tensors, for both massive and massless scalars in an AdS(2) black hole. The classical Bekenstein-Hawking entropy is found to be independent of the temperature, but at one loop a non-zero entanglement entropy arises. This represents a logarithmic violation of finite-temperature decoupling for AdS(2) black holes which arise in the near-horizon limit of an asymptotically at black hole. Correlation functions of the SL(2; R) invariant boundary quantum mechanics are computed as functions of the choice of AdS(2) vacuum.

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http://nrs.harvard.edu/urn-3:HUL.InstRepos:41417227

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