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Black hole collapse in the 1/c expansion

Author(s)
Anous, Tarek; Hartman, Thomas; Rovai, Antonin; Sonner, Julian
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Abstract
We present a first-principles CFT calculation corresponding to the spherical collapse of a shell of matter in three dimensional quantum gravity. In field theory terms, we describe the equilibration process, from early times to thermalization, of a CFT following a sudden injection of energy at time t = 0. By formulating a continuum version of Zamolodchikov’s monodromy method to calculate conformal blocks at large central charge c, we give a framework to compute a general class of probe observables in the collapse state, incorporating the full backreaction of matter fields on the dual geometry. This is illustrated by calculating a scalar field two-point function at time-like separation and the time-dependent entanglement entropy of an interval, both showing thermalization at late times. The results are in perfect agreement with previous gravity calculations in the AdS3-Vaidya geometry. Information loss appears in the CFT as an explicit violation of unitarity in the 1/c expansion, restored by nonperturbative corrections.
Date issued
2016-07
URI
http://hdl.handle.net/1721.1/103892
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Anous, Tarek, Thomas Hartman, Antonin Rovai, and Julian Sonner. "Black hole collapse in the 1/c expansion." Journal of High Energy Physics 2016:123 (July 2016), pp. 1-31.
Version: Final published version
ISSN
1029-8479

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