Fermionic Schwinger-Keldysh Propagators from AdS/CFT

Abstract

The Herzog and Son prescription for computing real-time Green functions for finite temperature gauge theories from their gravity dual is generalized to fermions. These notes explain how such an extension involves properties of spinors in a curved, complexified space-time.

Comments: 16 pages, 2 figures. v3: refs added, confusing typos fixed, note on sqrt(V,-U) and Dirac eqn added