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Critical phenomena in the two-dimensional Ising model with a defect line are studied using boundary conformal field theory on the $c=1$ orbifold. Novel features of the boundary states arising from the orbifold structure, including…

高能物理 - 理论 · 物理学 2011-07-19 Masaki Oshikawa , Ian Affleck

We use modern bootstrap techniques to study half-BPS line defects in 4d N=4 superconformal theories. Specifically, we consider the 1d CFT with OSP(4*|4) superconformal symmetry living on such a defect. Our analysis is general and based only…

高能物理 - 理论 · 物理学 2018-11-14 Pedro Liendo , Carlo Meneghelli , Vladimir Mitev

We study the conformal bootstrap for 4-point functions of stress tensors in parity-preserving 3d CFTs. To set up the bootstrap equations, we analyze the constraints of conformal symmetry, permutation symmetry, and conservation on the…

高能物理 - 理论 · 物理学 2018-04-04 Anatoly Dymarsky , Filip Kos , Petr Kravchuk , David Poland , David Simmons-Duffin

Finding a method to combine the numerical bootstrap with the analytic lightcone bootstrap is an important goal to advance the conformal bootstrap program. We propose a hybrid bootstrap method to do just that. The numerical and analytic…

高能物理 - 理论 · 物理学 2022-02-16 Ning Su

In this paper we deploy for the first time Reinforcement-Learning algorithms in the context of the conformal-bootstrap programme to obtain numerical solutions of conformal field theories (CFTs). As an illustration, we use a soft…

高能物理 - 理论 · 物理学 2022-02-02 Gergely Kántor , Vasilis Niarchos , Constantinos Papageorgakis

We investigate two aspects of conformal field theories. In the first part, we study the general 4-point correlator of identical scalars around the fully crossing symmetric point $u=v=1$, where $u,v$ are conformally invariant cross ratios.…

高能物理 - 理论 · 物理学 2018-01-31 Wenliang Li

We consider the conformal bootstrap for spacetime dimension $1<d<2$. We determine bounds on operator dimensions and compare our results with various theoretical and numerical models, in particular with resummed $\epsilon$-expansion and…

高能物理 - 理论 · 物理学 2015-01-08 John Golden , Miguel F. Paulos

Supersymmetric conformal field theories (SCFTs) form a unique subset of quantum field theories which provide powerful insights into strongly coupled critical phenomena. Here, we present a microscopic and non-perturbative realization of the…

强关联电子 · 物理学 2026-01-01 Yin Tang , Cristian Voinea , Liangdong Hu , Zlatko Papić , W. Zhu

We study topological defect lines in two-dimensional rational conformal field theory. Continuous variation of the location of such a defect does not change the value of a correlator. Defects separating different phases of local CFTs with…

高能物理 - 理论 · 物理学 2008-11-26 Jürg Fröhlich , Jürgen Fuchs , Ingo Runkel , Christoph Schweigert

Boundary conformal field theory (BCFT) is the study of conformal field theory (CFT) on manifolds with a boundary. We can use conformal symmetry to constrain correlation functions of conformal invariant fields. We compute two-point and…

高能物理 - 理论 · 物理学 2012-09-11 M. R. Setare , V. Kamali

Recently introduced ''fuzzy sphere'' method has enabled accurate numerical regularizations of certain three-dimensional (3D) conformal field theories (CFTs). The regularization is provided by the non-commutative geometry of the lowest…

统计力学 · 物理学 2025-07-25 Cristian Voinea , Ruihua Fan , Nicolas Regnault , Zlatko Papić

We study the constraints of crossing symmetry and unitarity in general 3D Conformal Field Theories. In doing so we derive new results for conformal blocks appearing in four-point functions of scalars and present an efficient method for…

高能物理 - 理论 · 物理学 2014-12-05 Sheer El-Showk , Miguel F. Paulos , David Poland , Slava Rychkov , David Simmons-Duffin , Alessandro Vichi

We consider interfaces between critical spin-chains in different universality classes, described in the continuum limit by defect/interface conformal field theory (DCFT/ICFT). We find a new conformal interface between the Tricritical Ising…

高能物理 - 理论 · 物理学 2026-05-25 António Antunes , Junchen Rong

We construct an effective field theory for fusion of conformal defects of any codimension in $d\geq 3$ conformal field theories. We fully solve the constraints of Weyl invariance for defects of arbitrary shape on general curved bulk…

高能物理 - 理论 · 物理学 2025-05-28 Petr Kravchuk , Alex Radcliffe , Ritam Sinha

We study the defect CFT associated with the half-BPS Wilson line in $\mathcal{N}=4$ Super Yang-Mills theory in four dimensions. Using a perturbative bootstrap approach, we derive new analytical results for multipoint correlators of…

高能物理 - 理论 · 物理学 2026-01-13 Daniele Artico , Julien Barrat , Giulia Peveri

Numerical studies of phase transitions in statistical and quantum lattice models provide crucial insights into the corresponding Conformal Field Theories (CFTs). In higher dimensions, comparing finite-volume numerical results to…

统计力学 · 物理学 2026-01-28 Andreas M. Läuchli , Loïc Herviou , Patrick H. Wilhelm , Slava Rychkov

The single-correlator conformal bootstrap is solved numerically for several values of dimension 4>d>2 using the available SDPB and Extremal Functional methods. Critical exponents and other conformal data of low-lying states are obtained…

高能物理 - 理论 · 物理学 2019-02-20 Andrea Cappelli , Lorenzo Maffi , Satoshi Okuda

We continue our study of the defect CFT on a Maldacena-Wilson line in N=4 Super-Yang-Mills theory using Bootstrability -- the conformal bootstrap supplemented with exact integrability data. In this paper, we extend this program to charged…

高能物理 - 理论 · 物理学 2024-12-19 Andrea Cavaglià , Nikolay Gromov , Julius Julius , Michelangelo Preti , Nika Sergeevna Sokolova

This is the second in a series of three articles about recovering the full algebraic structure of a boundary conformal field theory (CFT) from the scaling limit of the critical Ising model in slit-strip geometry. Here we study the fusion…

数学物理 · 物理学 2021-08-12 Taha Ameen , Kalle Kytölä , S. C. Park

In this thesis we study two-dimensional conformal field theories with Virasoro algebra symmetry, following the conformal bootstrap approach. Under the assumption that degenerate fields exist, we provide an extension of the analytic…

高能物理 - 理论 · 物理学 2019-02-06 Santiago Migliaccio