English
Related papers

Related papers: A genus-2 crossing equation in $d\geq 2$

200 papers

We introduce a novel class of defects, termed crosscap defects, in conformal field theory (CFT) in general dimensions. These arise from quotienting the spacetime by a $Z_2$ automorphism, and provide higher-codimension generalisations of CFT…

High Energy Physics - Theory · Physics 2026-05-18 Nadav Drukker , Shota Komatsu , Anders Wallberg

We compute genus two partition functions in two dimensional conformal field theories at large central charge, focusing on surfaces that give the third Renyi entropy of two intervals. We compute this for generalized free theories and for…

High Energy Physics - Theory · Physics 2017-10-25 Alexandre Belin , Christoph A. Keller , Ida G. Zadeh

We compute exactly the partition function of two dimensional N=(2,2) gauge theories on S^2 and show that it admits two dual descriptions: either as an integral over the Coulomb branch or as a sum over vortex and anti-vortex excitations on…

High Energy Physics - Theory · Physics 2017-01-04 Nima Doroud , Jaume Gomis , Bruno Le Floch , Sungjay Lee

We propose a generalisation of the $T \bar{T}$ deformation to curved spaces by defining, and solving, a suitable flow equation for the partition function. We provide evidence it is well-defined at the quantum level. This proposal…

High Energy Physics - Theory · Physics 2019-12-20 Edward A. Mazenc , Vasudev Shyam , Ronak M Soni

Transition-metal compounds (TMCs) with open-shell d-electrons are characterized by a complex interplay of lattice, charge, orbital, and spin degrees of freedom, giving rise to a diverse range of fascinating applications. Often exhibiting…

Materials Science · Physics 2025-03-19 Yubo Zhang , Akilan Ramasamy , Kanun Pokharel , James W. Furness , Jinliang Ning , Ruiqi Zhang , Jianwei Sun

In this work, we investigate the partition function of 2d CFT under root-$T\bar{T}$ deformation. We demonstrate that the deformed partition function satisfies a flow equation. At large central charge sector, the deformed partition function…

High Energy Physics - Theory · Physics 2025-12-03 Miao He

We test the AdS/CFT correspondence by computing the partition function of some $\mathcal{N}=2$ quiver Chern-Simons-matter theories on three-sphere. The M-theory backgrounds are of the Freund-Rubin type with the seven-dimensional internal…

High Energy Physics - Theory · Physics 2017-09-07 Sangmo Cheon , Hyojoong Kim , Nakwoo Kim

The conformal symmetry algebra in 2D (Diff($S^{1}$)$\oplus$Diff($S^{1}$)) is shown to be related to its ultra/non-relativistic version (BMS$_{3}$$\approx$GCA$_{2}$) through a nonlinear map of the generators, without any sort of limiting…

High Energy Physics - Theory · Physics 2021-12-08 Pablo Rodríguez , David Tempo , Ricardo Troncoso

We discuss partition function of 2d CFTs decorated by higher qKdV charges in the thermodynamic limit when the size of the spatial circle goes to infinity. In this limit the saddle point approximation is exact and at infinite central charge…

High Energy Physics - Theory · Physics 2020-04-13 Anatoly Dymarsky , Kirill Pavlenko

We propose a roadmap for bootstrapping conformal field theories (CFTs) described by gauge theories in dimensions $d>2$. In particular, we provide a simple and workable answer to the question of how to detect the gauge group in the bootstrap…

High Energy Physics - Theory · Physics 2021-12-29 Yin-Chen He , Junchen Rong , Ning Su

The critical 2d classical Ising model on the square lattice has two topological conformal defects: the $\mathbb{Z}_2$ symmetry defect $D_{\epsilon}$ and the Kramers-Wannier duality defect $D_{\sigma}$. These two defects implement…

Strongly Correlated Electrons · Physics 2016-09-26 Markus Hauru , Glen Evenbly , Wen Wei Ho , Davide Gaiotto , Guifre Vidal

We introduce a framework for two-dimensional conformal field theory (CFT) in the language of analytic number theory. Attached to the torus partition function of every two-dimensional CFT is a self-dual, degree-4 $L$-function of root number…

High Energy Physics - Theory · Physics 2025-09-29 Eric Perlmutter

Recent work by Zamolodchikov and others has uncovered a solvable irrelevant deformation of general 2D CFTs, defined by turning on the dimension 4 operator $T \bar T$, the product of the left- and right-moving stress tensor. We propose that…

High Energy Physics - Theory · Physics 2018-03-29 Lauren McGough , Márk Mezei , Herman Verlinde

$T\bar{T}$ deformed conformal field theories can be reformulated as worldsheet theories of non-critical strings. We use this correspondence to compute and study the $T\bar{T}$ deformed partition sum of a symmetric product CFT. We find that…

High Energy Physics - Theory · Physics 2023-05-23 Nathan Benjamin , Scott Collier , Jorrit Kruthoff , Herman Verlinde , Mengyang Zhang

We study the fractionalization of space group symmetries in two-dimensional topologically ordered phases. Specifically, we focus on Z2-fractionalized phases in two dimensions whose deconfined topological excitations transform trivially…

Strongly Correlated Electrons · Physics 2016-09-21 SungBin Lee , Michael Hermele , S. A. Parameswaran

We extend recent results on semi-classical conformal blocks in 2d CFT and their relation to 3D gravity via the AdS/CFT correspondence. We consider four-point functions with two heavy and two light external operators, along with the exchange…

High Energy Physics - Theory · Physics 2015-04-27 Eliot Hijano , Per Kraus , River Snively

We study 2-point and 3-point functions in CFT at finite temperature for large dimension operators using holography. The 2-point function leads to a universal formula for the holographic free energy in $d$ dimensions in terms of the…

High Energy Physics - Theory · Physics 2021-11-24 D. Rodriguez-Gomez , J. G. Russo

In conformal field theories (CFTs) of dimension $d>3$, two-dimensional (2d) conformal defects are characterised in part by central charges defined via the defect's contribution to the trace anomaly. However, in general for interacting CFTs…

High Energy Physics - Theory · Physics 2020-06-24 Adam Chalabi , Andy O'Bannon , Brandon Robinson , Jacopo Sisti

We develop an analytic approach to the four-point crossing equation in CFT, for general spacetime dimension. In a unitary CFT, the crossing equation (for, say, the s- and t-channel expansions) can be thought of as a vector equation in an…

High Energy Physics - Theory · Physics 2021-09-13 Dalimil Mazac , Leonardo Rastelli , Xinan Zhou

We prove the equivalence of a class of generalised Schur partition functions $\mathcal Z_G(q;\alpha)$ of 4d $\mathcal N=2$ superconformal gauge theories to contour integral representations of vector-valued modular forms of the type that…

High Energy Physics - Theory · Physics 2026-04-14 A. Ramesh Chandra , Sunil Mukhi , Palash Singh