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We provide an effective solution of the 1D crossing equation. We begin by arguing that crossing constraints can be recast in terms of bases of sum rules associated to special sets of CFT data -- extremal solutions -- which solve these…

高能物理 - 理论 · 物理学 2025-08-15 Kausik Ghosh , Miguel F. Paulos , Noé Suchel

We derive a dispersion relation for two-point correlation functions in defect conformal field theories. The correlator is expressed as an integral over a (single) discontinuity that is controlled by the bulk channel operator product…

高能物理 - 理论 · 物理学 2023-08-02 Lorenzo Bianchi , Davide Bonomi

We compute numerically the dimensions and OPE coefficients of several operators in the 3d Ising CFT, and then try to reverse-engineer the solution to crossing symmetry analytically. Our key tool is a set of new techniques for computing…

高能物理 - 理论 · 物理学 2017-03-20 David Simmons-Duffin

We develop an algebraic approach to the analytic bootstrap in CFTs. By acting with the Casimir operator on the crossing equation we map the problem of doing large spin sums to any desired order to the problem of solving a set of recursion…

高能物理 - 理论 · 物理学 2015-11-18 Luis F. Alday , Alexander Zhiboedov

In two-dimensional conformal field theory (CFT) the building blocks are given by chiral CFTs, i.e.~CFTs on the unit circle (compactified light-ray). They are generated by quantum fields depending on one light-ray coordinate only. There are…

算子代数 · 数学 2017-12-14 Sebastiano Carpi

We introduce a new numerical algorithm based on semidefinite programming to efficiently compute bounds on operator dimensions, central charges, and OPE coefficients in 4D conformal and N=1 superconformal field theories. Using our algorithm,…

高能物理 - 理论 · 物理学 2014-07-31 David Poland , David Simmons-Duffin , Alessandro Vichi

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 propose a novel approach to study conformal field theories (CFTs) in general dimensions. In the conformal bootstrap program, one usually searches for consistent CFT data that satisfy crossing symmetry. In the new approach, we reverse the…

高能物理 - 理论 · 物理学 2018-01-19 Wenliang Li

We study conformal field theories (CFTs) on curved spaces including both orientable and unorientable manifolds possibly with boundaries. We first review conformal transformations on curved manifolds. We then compute the identity components…

高能物理 - 理论 · 物理学 2023-02-24 Ken Kikuchi

The content of the OPE of two 1/2 BPS operators in N=4 SCFT$_4$ is given by their superspace three-point functions with a third, a priori long operator. For certain 1/2 BPS short superfields these three-point functions are uniquely…

高能物理 - 理论 · 物理学 2009-11-07 B. Eden , E. Sokatchev

It is a long-standing conjecture that any CFT with a large central charge and a large gap $\Delta_{\text{gap}}$ in the spectrum of higher-spin single-trace operators must be dual to a local effective field theory in AdS. We prove a sharp…

高能物理 - 理论 · 物理学 2021-12-08 Simon Caron-Huot , Dalimil Mazac , Leonardo Rastelli , David Simmons-Duffin

It has long been clear that the conformal bootstrap is associated with a rich geometry. In this paper we undertake a systematic exploration of this geometric structure as an object of study in its own right. We study conformal blocks for…

高能物理 - 理论 · 物理学 2022-10-12 Nima Arkani-Hamed , Yu-tin Huang , Shu-Heng Shao

We consider perturbation defects obtained by perturbing a 2D conformal field theory (CFT) by a relevant operator on a half-plane. If the perturbed bulk theory flows to an infrared fixed point described by another CFT, the defect flows to a…

高能物理 - 理论 · 物理学 2014-07-25 Anatoly Konechny , Cornelius Schmidt-Colinet

Localized basis sets in the projector augmented wave formalism allow for computationally efficient calculations within density functional theory (DFT). However, achieving high numerical accuracy requires an extensive basis set, which also…

材料科学 · 物理学 2020-11-18 G. Gandus , A. Valli , D. Passerone , R. Stadler

Under the assumption that degenerate fields exist, diagonal CFTs such as Liouville theory can be solved analytically using the conformal bootstrap method. Here we generalize this approach to non-diagonal CFTs, i.e. CFTs whose primary fields…

高能物理 - 理论 · 物理学 2018-07-04 Santiago Migliaccio , Sylvain Ribault

We obtain the planar correlation function of four half-BPS operators of arbitrary weights, up to three loops. Our method exploits only elementary properties of the integrand of the planar correlator, such as its symmetries and singularity…

高能物理 - 理论 · 物理学 2016-08-24 Dmitry Chicherin , James Drummond , Paul Heslop , Emery Sokatchev

We examine aspects of locality in perturbative quantum gravity and how information can be localized in subregions. In the framework of AdS/CFT, we consider the algebra of single-trace operators defined in a short time band. We conjecture…

高能物理 - 理论 · 物理学 2023-10-20 Eyoab Bahiru , Alexandre Belin , Kyriakos Papadodimas , Gabor Sarosi , Niloofar Vardian

We calculate various CFT data for the $O(N)$ vector model with the long-range interaction, working at the next-to-leading order in the $1/N$ expansion. Our results provide additional evidence for the existence of conformal symmetry at the…

高能物理 - 理论 · 物理学 2021-10-07 Noam Chai , Mikhail Goykhman , Ritam Sinha

We apply the method of the large spin bootstrap to analyse fermionic conformal field theories with weakly broken higher spin symmetry. Through the study of correlators of composite operators, we find the anomalous dimensions and OPE…

高能物理 - 理论 · 物理学 2018-02-14 Mark van Loon

We study the conformal bootstrap in fractional space-time dimensions, obtaining rigorous bounds on operator dimensions. Our results show strong evidence that there is a family of unitary CFTs connecting the 2D Ising model, the 3D Ising…

高能物理 - 理论 · 物理学 2015-10-13 S. El-Showk , M. Paulos , D. Poland , S. Rychkov , D. Simmons-Duffin , A. Vichi
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