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Seminar: ‘Entanglement asymmetry and spontaneously broken symmetries’
October 28 | 15:00 - 16:00
Speaker: Eduardo García-Valdecasas (SISSA, Trieste)
Venue&Time: Red Room / 15:00
Abstract: Entanglement asymmetry is a relative entropy that faithfully measures the breaking of a symmetry in a subregion. We explore some applications in theories with spontaneously broken higher form symmetries. We will start with discrete abelian symmetries and then discuss continuous symmetries. We will be able to recover the Mermin-Wagner-Coleman theorem and refine it for the case of subregions.