Renormalization group flow equations from the 4PI equations of motion
High Energy Physics - Theory
2013-12-06 v1
Abstract
The 4PI effective action provides a a hierarchy of integral equations which have the form of Bethe-Salpeter equations. The vertex functions obtained from these equations can be used to truncate the exact renormalization group flow equations. This truncation has the property that the flow is a total derivative with respect to the flow parameter and is equivalent to solving the nPI equations of motion. This result establishes a direct connection between two non-perturbative methods.
Keywords
Cite
@article{arxiv.1312.1515,
title = {Renormalization group flow equations from the 4PI equations of motion},
author = {M. E. Carrington},
journal= {arXiv preprint arXiv:1312.1515},
year = {2013}
}
Comments
6 pages; presented at the HIC for FAIR Workshop and XXXI Max Born Symposium `Three days of critical behaviour in hot and dense QCD,' Wroclaw, June 14-16, 2013