English

Analytic bootstrap at large spin

High Energy Physics - Theory 2016-01-20 v6

Abstract

We use analytic conformal bootstrap methods to determine the anomalous dimensions and OPE coefficients for large spin operators in general conformal field theories in four dimensions containing a scalar operator of conformal dimension Δϕ\Delta_\phi. It is known that such theories will contain an infinite sequence of large spin operators with twists approaching 2Δϕ+2n2\Delta_\phi+2n for each integer nn. By considering the case where such operators are separated by a twist gap from other operators at large spin, we analytically determine the nn, Δϕ\Delta_\phi dependence of the anomalous dimensions. We find that for all nn, the anomalous dimensions are negative for Δϕ\Delta_\phi satisfying the unitarity bound. We further compute the first subleading correction at large spin and show that it becomes universal for large twist. In the limit when nn is large, we find exact agreement with the AdS/CFT prediction corresponding to the Eikonal limit of a 2-2 scattering with dominant graviton exchange.

Keywords

Cite

@article{arxiv.1502.01437,
  title  = {Analytic bootstrap at large spin},
  author = {Apratim Kaviraj and Kallol Sen and Aninda Sinha},
  journal= {arXiv preprint arXiv:1502.01437},
  year   = {2016}
}

Comments

34 pages, 4 figures. v6: JHEP version

R2 v1 2026-06-22T08:22:40.342Z