Entanglement Entropy for $TT$ deformed CFT in general dimensions
High Energy Physics - Theory
2019-09-26 v2
Abstract
We consider deformation of a generic dimensional () large- CFT on a sphere by a spin-0 operator which is bilinear in the components of the stress tensor. Such a deformation has been proposed to be holographically dual to an bulk with a hard radial cut-off. We compute the exact partition function and find the entanglement entropy from the field theory side in various dimensions and compare with the corresponding holographic results. We also compute renormalized entanglement entropy both in field theory and holography and find complete agreement between them.
Cite
@article{arxiv.1904.00716,
title = {Entanglement Entropy for $TT$ deformed CFT in general dimensions},
author = {Aritra Banerjee and Arpan Bhattacharyya and Soumangsu Chakraborty},
journal= {arXiv preprint arXiv:1904.00716},
year = {2019}
}
Comments
Comments and clarifications added, references updated, version to appear in Nucl. Phys. B