1997/09/30 by Yuri Gusev, Andrei Zelnikov · 1 citation
Physics and Astronomy · #hep-th #gr-qc #hep-ph
paper · pdf · doi:10.1088/0264-9381/15/3/001
published as Class.Quant.Grav.15:L13-L19,1998 · 9 pages, LaTeX (title is changed)
arxiv created 1997/10/22 · arxiv updated 2010/04/06
Scalar fields at finite temperature are considered in four dimensional ultrastatic curved spacetime. One loop nonlocal effective action at finite temperature is found up to the second order in curvature expansion. This action is explicitly infrared finite. In the high temperature expansion of free energy, essentially nonlocal terms linear in temperature are derived.