Constructive $\phi^4$ field theory without tears
Mathematical Physics
2009-04-30 v1 math.MP
Abstract
We propose to treat the Euclidean theory constructively in a simpler way. Our method, based on a new kind of "loop vertex expansion", no longer requires the painful intermediate tool of cluster and Mayer expansions.
Cite
@article{arxiv.0706.2457,
title = {Constructive $\phi^4$ field theory without tears},
author = {J. Magnen and V. Rivasseau},
journal= {arXiv preprint arXiv:0706.2457},
year = {2009}
}