Singularities of thermal correlators at strong coupling

Abstract

The authors investigate singularities of 2-point functions in CFTs at finite temperature as they appear in the holographic dual description, namely along null-geodesics in the bulk geometry. Finite temperature implies that the geometry of the holographic dual description is a rather involved one with black holes, however, the authors apply a number of clever approximations to compute string theory corrections (finite `t Hooft coupling $\ensuremath{\lambda}$) for the propagators which ultimately resolve these singularities through tidal forces in the black hole geometry.

Topics & Concepts