On the correspondence between gravity fields and CFT operators

Details On the correspondence between gravity fields and CFT operators On the correspondence between gravity fields and CFT operators

2000-03-06

arxiv.org/abs/hep-th/0003038v1

JHEP 0004 (2000) 017

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 20 p

Scientific paper

10.1088/1126-6708/2000/04/017

It is shown that a nonlinear derivative-dependent transformation of gravity fields changes correlation functions in a boundary CFT, and, therefore, corresponds to a change of a basis of operators in the CFT. It is argued that only non-renormalized structures in correlation functions can be changed by such a field transformation, and that the study of the response of correlation functions to gravity field transformations allows one to find them. In the case of 4-point functions of CPOs in SYM_4 several non-renormalized structures are found, including the extremal and subextremal ones. It is also checked that quartic couplings of scalar fields s^I that are dual to extended chiral primary operators vanish in the subextremal case, as dictated by the non-renormalization theorem for the subextremal 4-point functions and the AdS/CFT correspondence.

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