Entanglement entropy and kinematic space in BCFT and RG flow
High Energy Physics - Theory
2018-07-30 v4
Abstract
The relation between kinematic space metric and entanglement entropy provides us with a differential equation for entanglement entropy. For BCFT on upper half plane we solve this equation to obtain an expression for entanglement entropy consistent with known results in the literature. We also discuss how this relation can be used to recast the RG flow, under relevant deformations of a CFT, as a flow in the space of kinematic space metrics.
Cite
@article{arxiv.1703.01759,
title = {Entanglement entropy and kinematic space in BCFT and RG flow},
author = {Samrat Bhowmick and Suchetan Das and Bobby Ezhuthachan},
journal= {arXiv preprint arXiv:1703.01759},
year = {2018}
}
Comments
19 pages, Version 4: typos corrected, appendix B shifted to main text in section- 3