$T\bar{T}$ and root-$T\bar{T}$ deformations in four-dimensional Chern-Simons theory

Abstract

The four-dimensional Chern-Simons (CS) theory provides a systematic procedure for realizing two-dimensional integrable field theories. It is therefore a natural question to ask whether integrable deformations of the theories can be realized in the four-dimensional CS theory. In this work, we study $T\bar{T}$ and root-$T\bar{T}$ deformations of two-dimensional integrable field theories, formulated in terms of dynamical coordinate transformations, within the framework of four-dimensional CS theory coupled to disorder defects. We illustrate our procedure in detail for the degenerate $\mathcal{E}$-model, a specific construction that captures and unifies a broad range of integrable systems, including the principal chiral model.

arXiv comment51 pages, 2 figures; v2: reference updated; v3: published version

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Cited by in corpus (2)

• On $\sqrt{T\overline{T}}$ deformed pathways: CFT to CCFT
• Integrable models from 4d holomorphic BF theory