New nonlocal effective action
High Energy Physics - Theory
2009-11-07 v2
Abstract
We suggest a new method for the calculation of the nonlocal part of the effective action. It is based on resummation of perturbation series for the heat kernel and its functional trace at large values of the proper time parameter. We derive a new, essentially nonperturbative, nonlocal contribution to the effective action in spacetimes with dimensions .
Cite
@article{arxiv.hep-th/0203132,
title = {New nonlocal effective action},
author = {A. O. Barvinsky and V. F. Mukhanov},
journal= {arXiv preprint arXiv:hep-th/0203132},
year = {2009}
}
Comments
28 pages, latex, no figures, typos are corrected, presentation improved