Resolving the information paradox: the fuzzball proposal

          @misc{ pirsa_PIRSA:09010027,
            doi = {10.48660/09010027},
            url = {https://pirsa.org/09010027},
            author = {Mathur, Samir},
            keywords = {Quantum Gravity, Quantum Fields and Strings},
            language = {en},
            title = {Resolving the information paradox: the fuzzball proposal},
            publisher = {Perimeter Institute},
            year = {2009},
            month = {jan},
            note = {PIRSA:09010027 see, \url{https://pirsa.org}}
          }
          

Abstract

String theory gives a consistent theory of quantum gravity, so we can ask about the nature of black hole microstates in this theory. Studies of extremal and near-extremal microstates indicate that these microstates do not have a traditional horizon, which would have no data about the microstate in its vicinity. Instead, the information of the microstate is distributed throughout a horizon sized quantum `fuzzball'. If this picture holds for all microstates then it would resolve the information paradox. We review recent progress in the area, including some results on non-extremal states. We also discuss some conjectures about black hole dynamics suggested by the structure of fuzzballs.