Covariant perturbation expansion of off-diagonal heat kernel
Statistical Mechanics
2016-09-06 v1 High Energy Physics - Theory
Mathematical Physics
math.MP
Quantum Physics
Abstract
Covariant perturbation expansion is an important method in quantum field theory. In this paper an expansion up to arbitrary order for off-diagonal heat kernels in flat space based on the covariant perturbation expansion is given. In literature, only diagonal heat kernels are calculated based on the covariant perturbation expansion.
Keywords
Cite
@article{arxiv.1603.00446,
title = {Covariant perturbation expansion of off-diagonal heat kernel},
author = {Yu-Zi Gou and Wen-Du Li and Ping Zhang and Wu-Sheng Dai},
journal= {arXiv preprint arXiv:1603.00446},
year = {2016}
}
Comments
To appear in International Journal of Theoretical Physics