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Stress-Tensor Commutator in CFT near the Lightcone

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arxiv 1907.00599 v2 pith:RSXQUMT4 submitted 2019-07-01 hep-th

classification hep-th
keywords lightconefieldnearstress-tensoralgebraassumptioncertaincommutation
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abstract

Starting with the general stress-tensor commutation relations consistent with the Poincar\'e algebra in local quantum field theory, we impose the tracelessness condition and focus on the dominating contributions in the lightcone limit. It is shown that, under a certain assumption on the Schwinger term, a Virasoro-algebra-like structure emerges near the lightcone in $d>2$ conformal field theories.

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Cited by 1 Pith paper

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  1. Light cone OPE in a CFT with lowest twist scalar primary

    hep-th 2019-08 conditional novelty 5.0 of 10

    In a unitary CFT with a lowest-twist scalar primary, the scalar contributes to the lightcone OPE only at subleading order, and no positive averaged operator analogous to the ANEC exists for a scalar integral.

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