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We formulate a set of general rules for computing $d$-dimensional four-point global conformal blocks of operators in arbitrary Lorentz representations in the context of the embedding space operator product expansion formalism…

高能物理 - 理论 · 物理学 2021-11-24 Jean-François Fortin , Wen-Jie Ma , Valentina Prilepina , Witold Skiba

We investigate the constraints of crossing symmetry on CFT correlation functions. Four point conformal blocks are naturally viewed as functions on the upper-half plane, on which crossing symmetry acts by PSL(2,Z) modular transformations.…

高能物理 - 理论 · 物理学 2017-08-02 Alexander Maloney , Henry Maxfield , Gim Seng Ng

We show that supersymmetry can be used to compute the BCFT one-point function coefficients for chiral primary operators, in 4d $\mathcal{N}=2$ SCFTs with $\frac{1}{2}$-BPS boundary conditions. The main ingredient is the hemisphere partition…

高能物理 - 理论 · 物理学 2025-09-26 Davide Bason , Lorenzo Di Pietro , Roberto Valandro , Jesse van Muiden

Recently, the conformal-bootstrap has been successfully used to obtain generic bounds on the spectrum and OPE coefficients of unitary conformal field theories. In practice, these bounds are obtained by assuming the existence of a scalar…

高能物理 - 理论 · 物理学 2015-06-18 Micha Berkooz , Ran Yacoby , Amir Zait

We study 2d N=4 superconformal field theories, focusing on its application on numerical bootstrap study. We derive the superconformal block by utilizing the global part of the super Virasoro algebra and set up the crossing equations for the…

高能物理 - 理论 · 物理学 2019-02-20 Filip Kos , Jihwan Oh

The four point function of Conformal Field Theories (CFT's) with global symmetry gives rise to multiple crossing symmetry constraints. We explicitly study the correlator of four scalar operators transforming in the fundamental…

高能物理 - 理论 · 物理学 2015-05-28 Alessandro Vichi

We calculate four-point correlation functions of two weight-2 and two weight-3 1/2-BPS operators in \mathcal{N}=4 SYM in the large N limit in supergravity approximation. By the AdS/CFT conjecture, these operators are dual to AdS…

高能物理 - 理论 · 物理学 2009-11-18 León Berdichevsky , Pieter Naaijkens

We present a universal treatment for imposing superconformal constraints on Mellin amplitudes for $\mathrm{SCFT_d}$ with $3\leq d\leq 6$. This leads to a new technique to compute holographic correlators, which is similar but complementary…

高能物理 - 理论 · 物理学 2018-09-26 Xinan Zhou

Coulomb branches of vacua are the most universal moduli spaces that arise in local unitary interacting 4d $\mathcal{N}=2$ superconformal field theories (SCFTs). In these theories, $1/2$-BPS primaries parameterize the Coulomb branches and…

高能物理 - 理论 · 物理学 2024-06-06 Matthew Buican

We provide a framework for generic 4D conformal bootstrap computations. It is based on the unification of two independent approaches, the covariant (embedding) formalism and the non-covariant (conformal frame) formalism. We construct their…

高能物理 - 理论 · 物理学 2017-05-17 Gabriel Francisco Cuomo , Denis Karateev , Petr Kravchuk

We discuss the properties of four-point functions in the context of the correspondence between a classical supergravity theory in the bulk of the Anti de Sitter space and quantum conformal field theory at the boundary. The contribution to a…

高能物理 - 理论 · 物理学 2009-09-17 Hong Liu , A. A. Tseytlin

We compute the four point function of scalar fields in AdS$_3$ charged under $U(1)$ Chern-Simons fields using the bulk version of the operator state mapping. Then we show how this four point function is reproduced from a CFT$_2$ with a…

高能物理 - 理论 · 物理学 2014-03-28 Ville Keranen

An explicit analytic formula is presented that computes the conformal (super-)block decomposition of any free scalar or half-BPS diagram in 1d, 2d or 4d CFTs, with various supersymmetries, including none. We prove our formula by exploiting…

高能物理 - 理论 · 物理学 2025-02-21 F. Aprile , J. M. Drummond , P. J. Heslop , M. Santagata

A general two-dimensional fractional supersymmetric conformal field theory is investigated. The structure of the symmetries of the theory is studied. Applying the generators of the closed subalgebra generated by…

高能物理 - 理论 · 物理学 2009-01-07 Fardin Kheirandish , Mohammad Khorrami

We set up the bootstrap procedure for supersymmetric Galilean Conformal (SGC) field theories in two dimensions by constructing the SGC blocks in the $\mathcal{N}=1$ and two possible $\mathcal{N} =2$ extensions of the Galilean conformal…

高能物理 - 理论 · 物理学 2018-09-25 Ivano Lodato , Wout Merbis , Zodinmawia

We extend SO(4,2) covariant lightcone embedding methods of four-dimensional CFTs to N=1 superconformal field theory (SCFT). Manifest superconformal SU(2,2|1) invariance is achieved by realizing 4D superconformal space as a surface embedded…

高能物理 - 理论 · 物理学 2013-05-30 Walter D. Goldberger , Witold Skiba , Minho Son

We study various aspects of half-BPS surface defect operators in $\mathcal{N}=4$ SYM. For defects on generic points on the moduli space we use superconformal symmetry to fix the form of one-point and two-point functions of half-BPS…

高能物理 - 理论 · 物理学 2025-11-20 Adolfo Holguin , Hiroki Kawai

Shadow formalism is a technique in two-dimensional CFT allowing straightforward computation of conformal blocks in the limit of infinitely large central charge. We generalize the construction of shadow operator for superconformal field…

高能物理 - 理论 · 物理学 2024-08-15 Vladimir Belavin , Juan Ramos Cabezas , Boris Runov

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…

高能物理 - 理论 · 物理学 2020-06-24 Sarthak Parikh

The decomposition of correlation functions into conformal blocks is an indispensable tool in conformal field theory. For spinning correlators, non-trivial tensor structures are needed to mediate between the conformal blocks, which are…

高能物理 - 理论 · 物理学 2020-10-28 Ilija Buric , Mikhail Isachenkov , Volker Schomerus