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Title

Black hole collapse in the 1

Authors
Anous, Tarek
Hartman, Thomas
Published in Journal of High Energy Physics. 2016, vol. 1607, p. 123-155
Collection Open Access - SCOAP3
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 AdS 3 -Vaidya geometry. Information loss appears in the CFT as an explicit violation of unitarity in the 1 /c expansion, restored by nonperturbative corrections.
Keywords AdS-CFT CorrespondenceBlack HolesGauge-gravity correspondence
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arXiv: 1603.04856
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ANOUS, Tarek et al. Black hole collapse in the 1. In: Journal of High Energy Physics, 2016, vol. 1607, p. 123-155. https://archive-ouverte.unige.ch/unige:85585

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Deposited on : 2016-08-02

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