GQFI-UGent-WST Seminar: Sunny Itzhaki "Stringy Information and Black Holes"
In this talk, Sunny Itzhaki (Tel Aviv U.) shows that in string theory, due to non perturbative effects, there are cases in which two states that semi classically are completely different, are in fact the same. One state cannot be excited without exciting the other: they are two components of the same state in the exact theory. As a result, in some situations that include black holes, the nature of information in string theory is dramatically different than in field theory. In particular, each general relativity state, that lives in the atmosphere of black fivebranes, is accompanied by an excitation that lives on folded strings, which fill the black hole interior. This is likely related to the way that information is extracted from black holes in string theory, and is refered to it as stringy information.
The Virtual Seminar Series “GQFI-Ghent University-Warsaw String Theory” (GQFI-UGent-WST) is a joint initiative between the strings/holography groups at the Albert Einstein Institute (AEI) in Potsdam, Ghent University and the University Warsaw. The calendar for upcoming GQFI-UGent-WST seminars can be found here: https://gqfi.aei.mpg.de/node/3.
This talk is primarily based on arXiv:1912.06538 [hep-th] (https://arxiv.org/abs/1912.06538).
This talk was recorded on November 23rd, 2021 at the Albert Einstein Institute in Potsdam-Golm.