GQFI-UGent-WST Seminar: Jacopo Viti "The ℏ→0 Limit of the Entanglement Entropy"
It may be naively assumed that certain entanglement measures, like the entanglement entropy of a pure state, approach zero in the classical limit. In this talk, Jacopo Viti (INFN, Florence) shows that the limit (when properly defined) is both well behaved and nonzero: for a bipartite system of N particles, it coincides with the Shannon entropy of N bits. These results have been demonstrated previously in the context of quantum field theory, but here Jacopo derives them in an elementary way and also provide a physical interpretation. Work in collaboration with G. Mussardo, to be published in PRA as Editor suggestion, see https://arxiv.org/abs/2112.06840.
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 of 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:2112.06840 [hep-th] (https://arxiv.org/abs/2112.06840).
This talk was recorded on March 1st, 2022 at the Albert Einstein Institute in Potsdam-Golm.