A Solvable Irrelevant Deformation of $AdS_3/CFT_2$

TL;DR

This paper presents a worldsheet coset CFT description of a recently proposed solvable irrelevant deformation of AdS3/CFT2 duality, analyzing its spectrum and ultraviolet properties.

Contribution

It introduces a worldsheet coset CFT formulation of the deformation and compares its spectrum with field theory predictions.

Findings

Spectrum matches field theory predictions

Ultraviolet behavior shows Hagedorn entropy

Provides a concrete worldsheet realization of the deformation

Abstract

Recently we proposed a universal solvable irrelevant deformation of $AdS_3/CFT_2$ duality, which leads in the ultraviolet to a theory with a Hagedorn entropy [1]. In this note we provide a worldsheet description of this theory as a coset CFT, and compare its spectrum to the field theory predictions of [2,3].