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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:13010021  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
The black hole information paradox and its resolution
Speaker(s): Ted Jacobson
Abstract: Both AdS/CFT duality and more general reasoning from quantum gravity point to a rich collection of boundary observables that always evolve unitarily. The physical quantum gravity states described by these observables must be solutions of the spatial diffeomorphism and Wheeler-deWitt constraints, which implies that the state space does not factorize into a tensor product of localized degrees of freedom. The "firewall" argument that unitarity of black hole evaporation is incompatible with a regular near horizon region is based on such a factorization, hence is not applicable in quantum gravity. A version of black hole complementarity resolves the apparent conflict. (I will also discuss doubts and questions.)
Date: 17/01/2013 - 2:30 pm
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