nLab
TT deformation

Contents

Context

Quantum Field Theory

algebraic quantum field theory (perturbative, on curved spacetimes, homotopical)

Introduction

Concepts

field theory:

Lagrangian field theory

quantization

quantum mechanical system, quantum probability

free field quantization

gauge theories

interacting field quantization

renormalization

Theorems

States and observables

Operator algebra

Local QFT

Perturbative QFT

Contents

Idea

A TT¯T \bar T-deformation of a conformal field theory is a deformation induced by the term TT¯T \bar T quadratic in the energy-momentum tensor

References

General

The original discussion for 2d CFT:

Generalization to CFT of arbitary dimension

Review:

  • John Cardy, The TT¯T \bar T deformation of quantum field theory, 2018 (pdf, pdf)

  • Yunfeng Jiang, Lectures on solvable irrelevant deformations of 2d quantum field theory (arXiv:1904.13376)

See also

In AdS 3/CFT 2AdS_3/CFT_2

The interpretation of the TT¯T \bar T-deformation in AdS3-CFT2 duality is due to

Of the DBI action

Proposal of a non-abelian DBI-action via TT¯T \bar T-deformation:

Last revised on January 13, 2020 at 04:17:56. See the history of this page for a list of all contributions to it.