Encontros Iberian Strings 

16/01/2017, 14:30 — 15:30 — Anfiteatro Abreu Faro
Julian Sonner, University of Geneva

Black hole collapse in CFT

Holography allows us to formulate questions about quantum gravity in terms of more ordinary quantum field theories without gravity. A natural and long-standing goal has been to understand the physics of black holes using holographic duality. I will report on some recent progress on this question formulating the spherical collapse of an in-falling shell of null matter in three dimensions in terms of a first-principles CFT calculation. I will argue that the apparent loss of information in the CFT can be traced back to late-time non-perturbative effects in an expansion in large central charge.

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SonnerBHCollapseLisboa.pdf