Finite temperature nonlocal effective action for quantum fields in curved space
High Energy Physics - Theory
2016-08-25 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Massless and massive scalar fields and massless spinor fields are considered at arbitrary temperatures in four dimensional ultrastatic curved spacetime. Scalar models under consideration can be either conformal or nonconformal and include selfinteraction. The one-loop nonlocal effective action at finite temperature and free energy for these quantum fields are found up to the second order in background field strengths using the covariant perturbation theory. The resulting expressions are free of infrared divergences. Spectral representations for nonlocal terms of high temperature expansions are obtained.
Keywords
Cite
@article{arxiv.hep-th/9807038,
title = {Finite temperature nonlocal effective action for quantum fields in curved space},
author = {Yu. V. Gusev and A. I Zelnikov},
journal= {arXiv preprint arXiv:hep-th/9807038},
year = {2016}
}
Comments
32 pages, LaTeX