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The $\textrm{T}\bar{\textrm{T}}$ perturbation and its geometric interpretation

4 Pith papers cite this work. Polarity classification is still indexing.

4 Pith papers citing it
abstract

Starting from the recently-discovered $\textrm{T}\bar{\textrm{T}}$-perturbed Lagrangians, we prove that the deformed solutions to the classical EoMs for bosonic field theories are equivalent to the unperturbed ones but for a specific field-dependent local change of coordinates. This surprising geometric outcome is fully consistent with the identification of $\textrm{T}\bar{\textrm{T}}$-deformed 2D quantum field theories as topological JT gravity coupled to generic matter fields. Although our conclusion is valid for generic interacting potentials, it first emerged from a detailed study of the sine-Gordon model and in particular from the fact that solitonic pseudo-spherical surfaces embedded in $\mathbb R^3$ are left invariant by the deformation. Analytic and numerical results concerning the perturbation of specific sine-Gordon soliton solutions are presented.

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hep-th 4

years

2026 2 2025 2

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UNVERDICTED 4

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representative citing papers

On $\sqrt{T\overline{T}}$ deformed pathways: CFT to CCFT

hep-th · 2026-01-21 · unverdicted · novelty 7.0

The marginal √(T T-bar) deformation of 2D massless scalars provides a dynamical map from relativistic CFT to Carrollian CCFT symmetries, recovering the electric Carroll theory and a novel magnetic counterpart in the extreme limits.

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