Gauge invariant flow equation
High Energy Physics - Theory
2018-05-07 v3 General Relativity and Quantum Cosmology
Abstract
We propose a closed gauge-invariant functional flow equation for Yang-Mills theories and quantum gravity that only involves one macroscopic gauge field or metric. It is based on a projection on physical and gauge fluctuations. Deriving this equation from a functional integral we employ the freedom in the precise choice of the macroscopic field and the effective average action in order to realize a closed and simple form of the flow equation.
Cite
@article{arxiv.1607.02989,
title = {Gauge invariant flow equation},
author = {C. Wetterich},
journal= {arXiv preprint arXiv:1607.02989},
year = {2018}
}
Comments
New references, small changes, 13 Pages