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<math><mi>d</mi><mo>></mo><mn>2</mn></math> stress-tensor operator product expansion near a line
- Source :
- Physical Review
- Publication Year :
- 2021
- Publisher :
- APS, 2021.
-
Abstract
- We study the operator product expansion of stress tensors (TT OPE) in d>2 conformal field theories whose bulk dual is Einstein gravity. Directly from the TT OPE, we obtain, in a certain null-like limit, an algebraic structure consistent with the Jacobi identity: [Lm,Ln]=(m−n)Lm+n+Cm(m2−1)δm+n,0. The dimensionless constant C is proportional to the central charge CT. Transverse integrals in the definition of Lm play a crucial role. We comment on the corresponding limiting procedure and point out a curiosity related to the central term. A connection between the d>2 near-lightcone stress-tensor conformal block and the d=2 W algebra is observed. This note is motivated by the search for a field-theoretic derivation of d>2 correlators in strong coupling critical phenomena.
- Subjects :
- Physics
Jacobi identity
010308 nuclear & particles physics
Cauchy stress tensor
Critical phenomena
Field (mathematics)
01 natural sciences
symbols.namesake
0103 physical sciences
symbols
Operator product expansion
Connection (algebraic framework)
010306 general physics
Central charge
Mathematical physics
Dimensionless quantity
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physical Review
- Accession number :
- edsair.doi.dedup.....dd0910a471f7b4f1010bff1f22869c55