A note on Quantum Fields in Conformally flat Space-times
arXiv:1810.09677 · doi:10.1142/S0217732319503486
Abstract
We develop a technique relating scalar fields with different masses in different conformally flat space-times. We apply this technique to the case of FRW space-times, with , and discuss several examples. We also study various energy conditions and discuss how they constrain the space-times related by this technique. In addition, we use this technique to study correlators for the related space-times in an example.
11pages, Latex, No figure, Added a section about renormalized stress tensor ; journal version