Crossing symmetry in alpha space

Abstract We initiate the study of the conformal bootstrap using Sturm-Liouville theory, specializing to four-point functions in one-dimensional CFTs. We do so by decomposing conformal correlators using a basis of eigenfunctions of the Casimir which are labeled by a complex number α. This leads to a...

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Main Authors: Matthijs Hogervorst, Balt C. van Rees
Format: Article
Language:English
Published: SpringerOpen 2017-11-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP11(2017)193
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author Matthijs Hogervorst
Balt C. van Rees
author_facet Matthijs Hogervorst
Balt C. van Rees
author_sort Matthijs Hogervorst
collection DOAJ
description Abstract We initiate the study of the conformal bootstrap using Sturm-Liouville theory, specializing to four-point functions in one-dimensional CFTs. We do so by decomposing conformal correlators using a basis of eigenfunctions of the Casimir which are labeled by a complex number α. This leads to a systematic method for computing conformal block decompositions. Analyzing bootstrap equations in alpha space turns crossing symmetry into an eigenvalue problem for an integral operator K. The operator K is closely related to the Wilson transform, and some of its eigenfunctions can be found in closed form.
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spelling doaj.art-ecac1cb5edc248f59819728586aee95f2022-12-21T20:32:02ZengSpringerOpenJournal of High Energy Physics1029-84792017-11-0120171114310.1007/JHEP11(2017)193Crossing symmetry in alpha spaceMatthijs Hogervorst0Balt C. van Rees1C.N. Yang Institute for Theoretical Physics, Stony Brook UniversityCentre for Particle Theory & Department of Mathematical Sciences, Durham UniversityAbstract We initiate the study of the conformal bootstrap using Sturm-Liouville theory, specializing to four-point functions in one-dimensional CFTs. We do so by decomposing conformal correlators using a basis of eigenfunctions of the Casimir which are labeled by a complex number α. This leads to a systematic method for computing conformal block decompositions. Analyzing bootstrap equations in alpha space turns crossing symmetry into an eigenvalue problem for an integral operator K. The operator K is closely related to the Wilson transform, and some of its eigenfunctions can be found in closed form.http://link.springer.com/article/10.1007/JHEP11(2017)193Conformal Field TheoryField Theories in Lower Dimensions
spellingShingle Matthijs Hogervorst
Balt C. van Rees
Crossing symmetry in alpha space
Journal of High Energy Physics
Conformal Field Theory
Field Theories in Lower Dimensions
title Crossing symmetry in alpha space
title_full Crossing symmetry in alpha space
title_fullStr Crossing symmetry in alpha space
title_full_unstemmed Crossing symmetry in alpha space
title_short Crossing symmetry in alpha space
title_sort crossing symmetry in alpha space
topic Conformal Field Theory
Field Theories in Lower Dimensions
url http://link.springer.com/article/10.1007/JHEP11(2017)193
work_keys_str_mv AT matthijshogervorst crossingsymmetryinalphaspace
AT baltcvanrees crossingsymmetryinalphaspace