DAVID TURTON, CEA Saclay:The study of black hole microstates in string theory is an important problem, which has the potential to resolve the information paradox. Of particular interest are BPS and near-BPS D l-D5-P bound states in string theory, which can be studied holographicaily. I will first review the information paradox, and the status of our knowledge of three-charge black hole microstates. I will then present work which identifies the CFT description of a class of BPS and non-BPS D1-D5-P supergravity solutions, including both regolar solutions and solutions with conical defects. The CFT states exhibit the important feature that the momentum charge is fractionated. I will then describe recent work on constructing more generai elasses of black hole microstate geometries that are dual to CFT states involving fractionated momentum. I Ovili dose with a discussion of the physics of an observer faiiing into a black hole.

DATA: 17-05-2016