English
Related papers

Related papers: Conformal Blocks in the Large D Limit

200 papers

QCD in $d=4-2\epsilon$ space-time dimensions possesses a nontrivial critical point. Scale invariance usually implies conformal symmetry so that there are good reasons to expect that QCD at the critical point restricted to the gauge…

High Energy Physics - Theory · Physics 2019-05-22 V. M. Braun , A. N. Manashov , S. Moch , M. Strohmaier

We introduce a full set of rules to directly express all $M$-point conformal blocks in one- and two-dimensional conformal field theories, irrespective of the topology. The $M$-point conformal blocks are power series expansion in some…

High Energy Physics - Theory · Physics 2020-09-17 Jean-François Fortin , Wen-Jie Ma , Witold Skiba

The 4D 4-point scattering amplitude of massless scalars via a massive exchange is expressed in a basis of conformal primary particle wavefunctions. This celestial amplitude is expanded in a basis of 2D conformal partial waves on the unitary…

High Energy Physics - Theory · Physics 2022-01-12 Alexander Atanasov , Walker Melton , Ana-Maria Raclariu , Andrew Strominger

In the context of conformal field theories in general space-time dimension, we find all the possible singularities of the conformal blocks as functions of the scaling dimension $\Delta$ of the exchanged operator. In particular, we argue,…

High Energy Physics - Theory · Physics 2016-10-03 João Penedones , Emilio Trevisani , Masahito Yamazaki

Conformal blocks play a central role in CFTs as the basic, theory-independent building blocks. However, only limited results are available concerning multipoint blocks associated with the global conformal group. In this paper, we…

High Energy Physics - Theory · Physics 2020-06-24 Sarthak Parikh

It is shown how to obtain conformal blocks from embedding space with the help of the operator product expansion. The minimal conformal block originates from scalar exchange in a four-point correlation functions of four scalars. All…

High Energy Physics - Theory · Physics 2016-06-08 Jean-François Fortin , Witold Skiba

We use the embedding formalism to construct conformal fields in $D$ dimensions, by restricting Lorentz-invariant ensembles of homogeneous neural networks in $(D+2)$ dimensions to the projective null cone. Conformal correlators may be…

High Energy Physics - Theory · Physics 2025-10-07 James Halverson , Joydeep Naskar , Jiahua Tian

Using the dipole framework for QCD at small x in the 1/N_c limit, we derive the expression of the 1 -> p dipole multiplicity density in momentum space. This gives an analytical expression for the 1 -> p QCD Pomeron amplitudes in terms of…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. A. Janik , R. Peschanski

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…

High Energy Physics - Theory · Physics 2022-10-12 Nima Arkani-Hamed , Yu-tin Huang , Shu-Heng Shao

By Liouville's theorem, in dimensions 3 or more conformal transformations form a finite-dimensional group, an apparent drastic departure from the 2-dimensional case. We propose a derived enhancement of the conformal Lie algebra which is an…

Algebraic Geometry · Mathematics 2021-02-24 Mikhail Kapranov

We study the momentum-space 4-point correlation function of identical scalar operators in conformal field theory. Working specifically with null momenta, we show that its imaginary part admits an expansion in conformal blocks. The blocks…

High Energy Physics - Theory · Physics 2020-12-29 Marc Gillioz

Conformally-invariant and pure, scale-invariant theories of gravity are particularly interesting in four or higher dimensions. Yet, in contrast to their four-dimensional counterparts, theories in higher dimensions are significantly more…

High Energy Physics - Theory · Physics 2026-04-16 Anamaria Hell , Dieter Lust

In this article, we continue the investigation of hep-th 1611.02179 regarding iterative properties of dual conformal integrals in higher dimensions. In d=4, iterative properties of four and five point dual conformal integrals manifest…

High Energy Physics - Theory · Physics 2020-07-15 L. V. Bork , R. M. Iakhibbaev , D. I. Kazakov , D. M. Tolkachev

For expansions in one-dimensional conformal blocks, we provide a rigorous link between the asymptotics of the spectral density of exchanged primaries and the leading singularity in the crossed channel. Our result has a direct application to…

High Energy Physics - Theory · Physics 2018-01-17 Jiaxin Qiao , Slava Rychkov

We uncover a striking connection between conformal blocks and fractional calculus. By employing a modified form of half-derivates, we derived explicitly the exact form of the three-dimensional conformal block, expressed as the product of…

High Energy Physics - Theory · Physics 2026-02-18 Chaoming Song

For conformal field theories in arbitrary dimensions, we introduce a method to derive the conformal blocks corresponding to the exchange of a traceless symmetric tensor appearing in four point functions of operators with spin. Using the…

High Energy Physics - Theory · Physics 2014-07-31 Miguel S. Costa , Joao Penedones , David Poland , Slava Rychkov

The explicit computation of higher-point conformal blocks in any dimension is usually a challenging task. For two-dimensional conformal field theories in Euclidean signature, the oscillator formalism proves to be very efficient. We…

High Energy Physics - Theory · Physics 2025-05-15 Martin Ammon , Jakob Hollweck , Tobias Hössel , Katharina Wölfl

Logarithmic conformal field theories have a vast range of applications, from critical percolation to systems with quenched disorder. In this paper we thoroughly examine the structure of these theories based on their symmetry properties. Our…

High Energy Physics - Theory · Physics 2017-11-22 Matthijs Hogervorst , Miguel Paulos , Alessandro Vichi

We construct field theories in $2+1$ dimensions with multiple conformal symmetries acting on only one of the spatial directions. These can be considered a conformal extension to "subsystem scale invariances", borrowing the language often…

High Energy Physics - Theory · Physics 2021-05-05 Andreas Karch , Amir Raz

We extend the work of [4] to support the conjecture that any conformal field theory with a large N expansion and a large gap in the spectrum of anomalous dimensions has a local bulk dual. We count to O(1/N^2) the solutions to the crossing…

High Energy Physics - Theory · Physics 2014-11-21 Idse Heemskerk , James Sully