HEP Theory Journal

Observing the black hole interior in AdS/CFT

Ian Morrison

AdS/CFT provides a well-understood, useful description of physics in the exterior region of asymptotically-AdS black hole spacetimes. Far less is understood about how AdS/CFT describes microscopic physics behind black hole horizons, even in the strict semi-classical (a.k.a large N) expansion. In this talk I will describe how bulk observables supported in the interior region of a semi-classical eternal black hole may be computed using CFT data. Previous studies on this topic have relied on the technical assumption that the CFT data is sufficiently analytic in position space. This assumption limits the validity of such studies to a sparse class of quantum states. One of the key technical improvements of my results is that the “boundary-to-bulk” map I construct is convergent for generic - i.e. non-analytic - CFT states.