Conformal group theory of tensor structures
Abstract 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 functions of cross ratios only, and the correlation func...
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Online Access: | http://link.springer.com/article/10.1007/JHEP10(2020)004 |
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doaj-cf0bdaf7ff1241aaa04b2a32d09f0a052020-11-25T03:43:15ZengSpringerOpenJournal of High Energy Physics1029-84792020-10-0120201013910.1007/JHEP10(2020)004Conformal group theory of tensor structuresIlija Burić0Volker Schomerus1Mikhail Isachenkov2DESYDESYIHÉSAbstract 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 functions of cross ratios only, and the correlation functions that depend on insertion points in the d-dimensional Euclidean space. Here we develop an entirely group theoretic approach to tensor structures, based on the Cartan decomposition of the conformal group. It provides us with a new universal formula for tensor structures and thereby a systematic derivation of crossing equations. Our approach applies to a ‘gauge’ in which the conformal blocks are wave functions of Calogero-Sutherland models rather than solutions of the more standard Casimir equations. Through this ab initio construction of tensor structures we complete the Calogero-Sutherland approach to conformal correlators, at least for four-point functions of local operators in non-supersymmetric models. An extension to defects and superconformal symmetry is possible.http://link.springer.com/article/10.1007/JHEP10(2020)004Conformal Field TheoryGlobal SymmetriesSpace-Time Symmetries |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ilija Burić Volker Schomerus Mikhail Isachenkov |
spellingShingle |
Ilija Burić Volker Schomerus Mikhail Isachenkov Conformal group theory of tensor structures Journal of High Energy Physics Conformal Field Theory Global Symmetries Space-Time Symmetries |
author_facet |
Ilija Burić Volker Schomerus Mikhail Isachenkov |
author_sort |
Ilija Burić |
title |
Conformal group theory of tensor structures |
title_short |
Conformal group theory of tensor structures |
title_full |
Conformal group theory of tensor structures |
title_fullStr |
Conformal group theory of tensor structures |
title_full_unstemmed |
Conformal group theory of tensor structures |
title_sort |
conformal group theory of tensor structures |
publisher |
SpringerOpen |
series |
Journal of High Energy Physics |
issn |
1029-8479 |
publishDate |
2020-10-01 |
description |
Abstract 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 functions of cross ratios only, and the correlation functions that depend on insertion points in the d-dimensional Euclidean space. Here we develop an entirely group theoretic approach to tensor structures, based on the Cartan decomposition of the conformal group. It provides us with a new universal formula for tensor structures and thereby a systematic derivation of crossing equations. Our approach applies to a ‘gauge’ in which the conformal blocks are wave functions of Calogero-Sutherland models rather than solutions of the more standard Casimir equations. Through this ab initio construction of tensor structures we complete the Calogero-Sutherland approach to conformal correlators, at least for four-point functions of local operators in non-supersymmetric models. An extension to defects and superconformal symmetry is possible. |
topic |
Conformal Field Theory Global Symmetries Space-Time Symmetries |
url |
http://link.springer.com/article/10.1007/JHEP10(2020)004 |
work_keys_str_mv |
AT ilijaburic conformalgrouptheoryoftensorstructures AT volkerschomerus conformalgrouptheoryoftensorstructures AT mikhailisachenkov conformalgrouptheoryoftensorstructures |
_version_ |
1724521163242078208 |