English

$T\bar{T}$-deformed correlators from a 2D gravity description

High Energy Physics - Theory 2025-07-28 v2

Abstract

We study correlators in two-dimensional TTˉT\bar{T}-deformed conformal field theories by interpreting the TTˉT\bar{T} deformation as a coupling to two-dimensional gravity. To demonstrate the utility of the massive gravity framework as a particular realization of the gravitational interpretation, we show how the TTˉT\bar{T}-deformed correlators at finite coupling can be computed by adopting a judicious parametrization of the 2D metric and a preferred choice of zweibeins. To illustrate how this method works in practice, we compute the leading logarithmic contributions to two- and three-point functions to all orders in the TTˉT\bar{T} coupling, reproducing a known result while producing new findings. This framework generalizes the random geometry approach to finite coupling.

Keywords

Cite

@article{arxiv.2507.16256,
  title  = {$T\bar{T}$-deformed correlators from a 2D gravity description},
  author = {Shinji Hirano and Vinayak Raj},
  journal= {arXiv preprint arXiv:2507.16256},
  year   = {2025}
}

Comments

18 pages, v2: minor modifications, references added

R2 v1 2026-07-01T04:12:46.293Z