Analyzing the squeezed state generated by a twist deformation

TL;DR

This paper derives a new expression for the squeezed state generated by a twist deformation in the D1D5 CFT, providing insights into its features and describing it in terms of position space correlations.

Contribution

A novel derivation of the squeezed state expression using conformal Ward identities and analysis in the continuum limit.

Findings

New expression for the squeezed state derived

Insights into the features of the squeezed state gained

Description of the state in position space correlations

Abstract

The D1D5 CFT has provided a useful microscopic model for studying black holes. The coupling in this theory is a twist deformation whose action on the vacuum generates a squeezed state. We give a new derivation of the expression for this squeezed state using the conformal Ward identity; this derivation provides an insight into several features of the state. We also examine the squeezed state in a continuum limit where we describe it in terms of position space correlations created by the twist.