Functional integral with "phi^4" term in the action beyond standard perturbative methods
High Energy Physics - Theory
2008-12-18 v2
Abstract
We propose the another, in principe nonperturbative, method of the evaluatiom of the Wiener functional integral for "phi^4" term in the action. We find the "generalized" Gelfand-Yaglom differential equation implying the functional integral in the continuum limit.
Cite
@article{arxiv.hep-th/0503235,
title = {Functional integral with "phi^4" term in the action beyond standard perturbative methods},
author = {J. Bohacik and P. Presnajder},
journal= {arXiv preprint arXiv:hep-th/0503235},
year = {2008}
}
Comments
We clarify the proofs of the formulas, add a discussions of the mathematical steps