Current browse context:
hep-th
Change to browse by:
References & Citations
High Energy Physics - Theory
Title: Non-saturation of Bootstrap Bounds by Hyperbolic Orbifolds
(Submitted on 22 Apr 2024)
Abstract: In recent years the conformal bootstrap has produced surprisingly tight bounds on many non-perturbative CFTs. It is an open question whether such bounds are indeed saturated by these CFTs. A toy version of this question appears in a recent application of the conformal bootstrap to hyperbolic orbifolds, where one finds bounds on Laplace eigenvalues that are exceptionally close to saturation by explicit orbifolds. In some instances, the bounds agree with the actual values to 11 significant digits. In this work we show, under reasonable assumptions about the convergence of numerics, that these bounds are not in fact saturated. In doing so, we find formulas for the OPE coefficients of hyperbolic orbifolds, using links between them and the Rankin-Cohen brackets of modular forms.
Link back to: arXiv, form interface, contact.