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Closure of the operator product expansion in the non-unitary bootstrap

Ilya Esterlis
A. Liam Fitzpatrick
David M. Ramirez
Journal / Anthology

Journal of High Energy Physics
Year: 2016
Volume: 030

We use the numerical conformal bootstrap in two dimensions to search for nite, closed sub-algebras of the operator product expansion (OPE), without assuming unitarity. We nd the minimal models as special cases, as well as additional lines of solutions that can be understood in the Coulomb gas formalism. All the solutions we nd that contain the vacuum in the operator algebra are cases where the external operators of the bootstrap equation are degenerate operators, and we argue that this follows analytically from the expressions in arXiv:1202.4698 for the crossing matrices of Virasoro conformal blocks. Our numerical analysis is a special case of the \Gliozzi" bootstrap method, and provides a simpler setting in which to study technical challenges with the method. In the supplementary material, we provide a Mathematica notebook that automates the calculation of the crossing matrices and OPE coecients for degenerate operators using the formulae of Dotsenko and Fateev.

*Science > Physics