Geometric realization via irrelevant deformations induced by the stress-energy tensor

Fuente: arXiv
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Main Authors: Ran, Xi-Yang, Hao, Feng, Yamada, Masatoshi
Format: Preprint
Published: 2024
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author Ran, Xi-Yang
Hao, Feng
Yamada, Masatoshi
author_facet Ran, Xi-Yang
Hao, Feng
Yamada, Masatoshi
contents In this paper, we generalize the deformations driven by the stress-energy tensor $T$ and investigate their relation to the flow equation for the background metric at the classical level. For a deformation operator $\mathcal{O}$ as a polynomial function of the stress-energy tensor, we develop a formalism that relates a deformed action to a flow equation for the metric in arbitrary spacetime dimensions. It is shown that in the $T\bar{T}$ deformation and the $\mathcal{O}(T)=\text{tr}[\textbf{T}]^m$ deformation, the flow equations for the metric allow us to directly obtain exact solutions in closed forms. We also demonstrate the perturbative approach to find the same results. As several applications of the $\mathcal{O}(T)=\text{tr}[\textbf{T}]^m$ deformation, we discuss the relation between the deformations and gravitational models. Besides, we also deform the Lagrangians for scalar field theories.
format Preprint
id arxiv_https___arxiv_org_abs_2410_02537
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Geometric realization via irrelevant deformations induced by the stress-energy tensor
Ran, Xi-Yang
Hao, Feng
Yamada, Masatoshi
High Energy Physics - Theory
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
In this paper, we generalize the deformations driven by the stress-energy tensor $T$ and investigate their relation to the flow equation for the background metric at the classical level. For a deformation operator $\mathcal{O}$ as a polynomial function of the stress-energy tensor, we develop a formalism that relates a deformed action to a flow equation for the metric in arbitrary spacetime dimensions. It is shown that in the $T\bar{T}$ deformation and the $\mathcal{O}(T)=\text{tr}[\textbf{T}]^m$ deformation, the flow equations for the metric allow us to directly obtain exact solutions in closed forms. We also demonstrate the perturbative approach to find the same results. As several applications of the $\mathcal{O}(T)=\text{tr}[\textbf{T}]^m$ deformation, we discuss the relation between the deformations and gravitational models. Besides, we also deform the Lagrangians for scalar field theories.
title Geometric realization via irrelevant deformations induced by the stress-energy tensor
topic High Energy Physics - Theory
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2410.02537