René Meyer 教授学术报告
Title: Symmetry-Resolved Entanglement in AdS & BCFT
Speaker: René Meyer
Affiliation: Julius-Maximilians-Universität Würzburg, Germany (德国维尔茨堡大学)
Time: 14:00-15:00, Monday, 10th March, 2025 (UTC+8, Beijing Time)
Venue: Room 1502, Shing-Tung Yau Center, Yifu Architecture Building, Sipailou Campus of Southeast University, Nanjing（东南大学四牌楼校区逸夫建筑馆丘成桐中心1502室）
Inviter: Qiang Wen (文强)
Abstract
I will discuss recent new examples providing new links between quantum information, holography and quantum gravity. I will first introduce a refinement of the usual entanglement entropy for theories with global conserved charges, the so-called symmetry resolved entanglement entropy, and discuss its implementation in AdS3/CFT2 (2012.11274, 2108.09210). I will in particular discuss the structure of entanglement in different charge sectors, which turns out trivial in theories with U(1) Kac-Moody symmetry. This property is called equipartition of entanglement. I will then discuss how W3 symmetric CFTs (2202.11111) break this equipartition property. Finally, I will present recent work (2212.09767) which employs boundary conformal field theory techniques to obtain exact results for the symmetry-resolved entanglement and in particular for the equipartition property in U(1) Kac-Moody symmetric CFTs.
Speaker
Prof. René Meyer got his PhD at Ludwig-Maximilians University and the Max-Planck-Institute for Physics, Munich in 2009. He was a post-doctor at the University of Crete, the University of Tokyo and Stony Brook University. He joined Julius-Maximilians University Würzburg since 2016 at a lecturer. His research interest lies in Quantum field theory, applications of AdS/CFT, Hydrodynamics and the AdS/CFT correspondence and String Theory.