Hadamard property of the in and out states for Dirac fields on asymptotically static spacetimes

Abstract

We consider massive Dirac equations on asymptotically static spacetimes with a Cauchy surface of bounded geometry. We prove that the associated quantized Dirac field admits in and out states, which are asymptotic vacuum states when some time coordinate tends to $\mp\infty$. We also show that the in /out states are Hadamard states.(new version with some typos corrected).