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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Maths HEP Lunchtime Seminars: A No-Go Theorem on Hole-ographic Bulk Reconstruction

Presented by Sebastian Fischetti, Imperial College London

22 January 2016 13:00 in CM221

An important lesson that has emerged in the past two years is that entanglement and geometry are deeply related. This is made manifest in AdS/CFT via the RT and HRT conjectures. In particular, the hole-ographic bulk reconstruction allows one to reconstruct arbitrary curves in the bulk space from CFT entanglement entropy. In my talk, I'll review this construction, and then describe some theorems that severely constrain when it can work. In particular, these theorems imply that the hole-ographic approach cannot be used to reconstruct certain regions inside (dynamical and non-dynamical) black holes. I will then briefly discuss the implications of these theorems for holography in general.

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