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We propose a manifestly supersymmetric generalization of the solvable $T \overline{T}$ deformation of two-dimensional field theories. For theories with $(1,1)$ and $(0,1)$ supersymmetry, the deformation is defined by adding a term to the…

High Energy Physics - Theory · Physics 2019-05-22 Chih-Kai Chang , Christian Ferko , Savdeep Sethi

We define a manifestly supersymmetric version of the $T \overline{T}$ deformation appropriate for a class of $(0+1)$-dimensional theories with $\mathcal{N} = 1$ or $\mathcal{N} = 2$ supersymmetry, including one presentation of the…

High Energy Physics - Theory · Physics 2022-08-16 Stephen Ebert , Christian Ferko , Hao-Yu Sun , Zhengdi Sun

We construct a solvable deformation of two-dimensional theories with $(2,2)$ supersymmetry using an irrelevant operator which is a bilinear in the supercurrents. This supercurrent-squared operator is manifestly supersymmetric, and…

High Energy Physics - Theory · Physics 2020-01-15 Chih-Kai Chang , Christian Ferko , Savdeep Sethi , Alessandro Sfondrini , Gabriele Tartaglino-Mazzucchelli

We investigate the "$T\bar{T}$" deformations of two-dimensional supersymmetric quantum field theories. More precisely, we show that, by using the conservation equations for the supercurrent multiplet, the $T\bar{T}$ deforming operator can…

High Energy Physics - Theory · Physics 2019-07-24 Marco Baggio , Alessandro Sfondrini , Gabriele Tartaglino-Mazzucchelli , Harriet Walsh

This review explores recent advances in the theory of $T\bar{T}$ deformation, an irrelevant yet solvable deformation of quantum field theories defined via the quadratic form of the energy-momentum tensor. It addresses classical and quantum…

High Energy Physics - Theory · Physics 2025-05-13 Song He , Yi Li , Hao Ouyang , Yuan Sun

We study the $T\overline{T}$ deformation of two dimensional quantum field theories from a Hamiltonian point of view, focusing on aspects of the theory in Lorentzian signature. Our starting point is a simple rewriting of the spatial integral…

High Energy Physics - Theory · Physics 2020-11-25 Jorrit Kruthoff , Onkar Parrikar

The irrelevant composite operator $T\bar{T}$, constructed from components of the stress-energy tensor, exhibits unique properties in two-dimensional quantum field theories and represents a distinctive form of integrable deformation.…

High Energy Physics - Theory · Physics 2025-01-22 Nicolò Brizio , Tommaso Morone , Roberto Tateo

We investigate the behaviour of two-dimensional quantum field theories with $\mathcal{N}=(0,2)$ supersymmetry under a deformation induced by the `$T\bar{T}$' composite operator. We show that the deforming operator can be defined by a…

High Energy Physics - Theory · Physics 2019-12-17 Hongliang Jiang , Alessandro Sfondrini , Gabriele Tartaglino-Mazzucchelli

Motivated by the two-dimensional massive gravity description of $T\overline{T}$ deformations, we propose a direct generalization in $d$ dimensions. Our methodology indicates that all terms up to order $d$ are present in the deformation. In…

High Energy Physics - Theory · Physics 2024-09-26 Evangelos Tsolakidis

We explore the $J\bar{T}$ and $T\bar{J}$ deformations of two-dimensional field theories possessing $\mathcal N=(0,1),(1,1)$ and $(0,2)$ supersymmetry. Based on the stress-tensor and flavor current multiplets, we construct various bilinear…

High Energy Physics - Theory · Physics 2020-06-24 Hongliang Jiang , Gabriele Tartaglino-Mazzucchelli

In this letter we introduce a one-parameter deformation of two-dimensional quantum field theories generated by a non-analytic operator which we call Root-$T \overline{T}$. For a conformal field theory, the operator coincides with the…

High Energy Physics - Theory · Physics 2022-11-23 Christian Ferko , Alessandro Sfondrini , Liam Smith , Gabriele Tartaglino-Mazzucchelli

This is a pedagogical review on $\mathrm{T}\overline{\mathrm{T}}$ deformation of two dimensional quantum field theories. It is based on three lectures which the author gave at ITP-CAS in December 2018. This review consists of four parts.…

High Energy Physics - Theory · Physics 2021-02-16 Yunfeng Jiang

We study solvable deformations of two-dimensional quantum field theories driven by a bilinear operator constructed from a pair of conserved $U(1)$ currents $J^a$. We propose a quantum formulation of these deformations, based on the gauging…

High Energy Physics - Theory · Physics 2023-06-14 Sergei Dubovsky , Stefano Negro , Massimo Porrati

In recent years, there have been two independent but related developments in the study of irrelevant deformations in two dimensional quantum field theories (QFTs). The first development is the deformation of a two dimensional QFT by the…

High Energy Physics - Theory · Physics 2021-12-07 M. Asrat Demisē

The holographic duality conjectures a relation between strongly coupled quantum systems and quantum gravity in higher-dimensional spacetimes. Gravitational theories in two and three dimensions are meaningful examples for classical and…

High Energy Physics - Theory · Physics 2024-04-17 Stephen Ebert

We show that the $3d$ Born-Infeld theory can be generated via an irrelevant deformation of the free Maxwell theory. The deforming operator is constructed from the energy-momentum tensor and includes a novel non-analytic contribution that…

High Energy Physics - Theory · Physics 2024-01-31 Christian Ferko , Yangrui Hu , Zejun Huang , Konstantinos Koutrolikos , Gabriele Tartaglino-Mazzucchelli

We classify possible supersymmetry-preserving relevant, marginal, and irrelevant deformations of unitary superconformal theories in $d \geq 3$ dimensions. Our method only relies on symmetries and unitarity. Hence, the results are model…

High Energy Physics - Theory · Physics 2016-12-21 Clay Cordova , Thomas T. Dumitrescu , Kenneth Intriligator

It was recently shown that the theory obtained by deforming a general two dimensional conformal theory by the irrelevant operator $T\bar T$ is solvable. In the context of holography, a large class of such theories can be obtained by…

High Energy Physics - Theory · Physics 2020-07-15 Amit Giveon , Nissan Itzhaki , David Kutasov

In this paper we discuss the relationship between noninvertible topological operators, one-form symmetries, and decomposition of two-dimensional quantum field theories, focusing on two-dimensional orbifolds with and without discrete…

High Energy Physics - Theory · Physics 2024-08-16 E. Sharpe

We explore whether one can $T \overline{T}$ deform a collection of theories that are already $T \overline{T}$-deformed. This allows us to define classes of irrelevant deformations that know about subsystems. In some basic cases, we explore…

High Energy Physics - Theory · Physics 2023-05-03 Christian Ferko , Savdeep Sethi
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