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清华大学材料科学与工程研究院《材料科学论坛》:Adaptive Nanophotonics by Novel...
报告题目:
Symmetry-Resolved Entanglement in AdS & BCFT
 报告人:
René Meyer
Julius-Maximilians-Universit?t Würzburg
报告时间:
2023-08-30 10:00
报告地点:
Conference Hall 104, Science Building, Tsinghua University
主办单位:
高等研究院
  简介:

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.


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