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Entanglement Entropy for $TT$ deformed CFT in general dimensions

High Energy Physics - Theory 2019-09-26 v2

Abstract

We consider deformation of a generic dd dimensional (d2d\geq 2) large-NN 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 AdSd+1AdS_{d+1} 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.

Keywords

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

R2 v1 2026-06-23T08:25:06.318Z