Entanglement Beyond $\rm AdS$

TL;DR

This paper explores the structure of spatial entanglement in a string theory background that interpolates between AdS3 and a linear dilaton spacetime, comparing it to Tar T deformations of CFT2, revealing insights into entanglement beyond AdS.

Contribution

It analyzes entanglement in a holographic model interpolating between AdS and linear dilaton backgrounds, extending understanding beyond traditional AdS/CFT correspondence.

Findings

Entanglement structure differs from pure AdS models.

Comparison with Tar T deformed CFT2 highlights unique features.

Provides insights into non-AdS holography and entanglement.

Abstract

We continue our study of string theory in a background that interpolates between $AdS_3$ in the infrared and a linear dilaton spacetime $R^{1,1}\times R_\phi$ in the UV. This background corresponds via holography to a $CFT_2$ deformed by an operator of dimension $(2,2)$. We discuss the structure of spatial entanglement in this model, and compare it to the closely related $T\bar T$ deformed $CFT_2$.