2002/12/06 by Sandro Silva e Costa, Costa, Sandro Silva e, Reuven Opher +1
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #astro-ph #gr-qc
paper · pdf · doi:10.48550/arxiv.astro-ph/0212157
8 pages, revtex4, no figures
arxiv created 2002/12/06 · arxiv updated 2009/11/30
We present the Green's functions that are the solutions of the massive Klein-Gordon equation for a scalar field with non-minimal coupling to gravitation for several static and expanding cosmological models. An important feature of such functions is that they can be used to study the appearence of a Casimir energy in models of the universe with compact spatial sections.