Flow equations for generalised $T\bar{T}$ deformations
High Energy Physics - Theory
2020-05-27 v2 Exactly Solvable and Integrable Systems
Abstract
We consider the most general set of integrable deformations extending the deformation of two-dimensional relativistic QFTs. They are CDD deformations of the theory's factorised S-matrix related to the higher-spin conserved charges. Using a mirror version of the generalised Gibbs ensemble, we write down the finite-volume expectation value of the higher-spin charges, and derive a generalised flow equation that every charge must obey under a generalised deformation. This also reproduces the known flow equations on the nose.
Cite
@article{arxiv.1911.12233,
title = {Flow equations for generalised $T\bar{T}$ deformations},
author = {Guzmán Hernández-Chifflet and Stefano Negro and Alessandro Sfondrini},
journal= {arXiv preprint arXiv:1911.12233},
year = {2020}
}
Comments
6 pages, 1 figure; v2 misprint corrected, added references