Abstract

We propose a holographic entanglement entropy prescription for general states and regions in two models of holography beyond AdS/CFT known as flat3/BMSFT and (W)AdS3/WCFT. Flat3/BMSFT is a candidate of holography for asymptotically flat three- dimensional spacetimes, while (W)AdS3/WCFT is relevant in the study of black holes in the real world. In particular, the boundary theories are examples of quantum field theories that feature an infinite dimensional symmetry group but break Lorentz invariance. Our holographic entanglement entropy proposal is given by the area of a swing surface that consists of ropes, which are null geodesics emanating from the entangling surface at the boundary, and a bench, which is a spacelike geodesic connecting the ropes. The proposal is supported by an extension of the Lewkowycz-Maldacena argument, reproduces previous results based on the Rindler method, and satisfies the first law of entanglement entropy.

Details

Title
Swing surfaces and holographic entanglement beyond AdS/CFT
Author
Apolo Luis 1 ; Jiang Hongliang 2 ; Song, Wei 3 ; Zhong Yuan 1 

 Tsinghua University, Yau Mathematical Sciences Center, Beijing, China (GRID:grid.12527.33) (ISNI:0000 0001 0662 3178) 
 Institute for Theoretical Physics, University of Bern, Albert Einstein Center for Fundamental Physics, Bern, Switzerland (GRID:grid.5734.5) (ISNI:0000 0001 0726 5157) 
 Tsinghua University, Yau Mathematical Sciences Center, Beijing, China (GRID:grid.12527.33) (ISNI:0000 0001 0662 3178); Institute for Advanced Study, Princeton, USA (GRID:grid.78989.37) (ISNI:0000 0001 2160 7918) 
Publication year
2020
Publication date
Dec 2020
Publisher
Springer Nature B.V.
e-ISSN
10298479
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2473427076
Copyright
© The Author(s) 2020. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.