Summing the derivative expansion of the effective action
High Energy Physics - Theory
2009-11-07 v3
Abstract
The derivative expansion of the effective action is a perturbative development in derivatives of the fields. The expansion breaks down when some of the derivatives are too large. We show how to sum exactly the first and second derivatives and treat perturbatively derivatives higher than second.
Cite
@article{arxiv.hep-th/0109046,
title = {Summing the derivative expansion of the effective action},
author = {Eduard Masso and Francesc Rota},
journal= {arXiv preprint arXiv:hep-th/0109046},
year = {2009}
}
Comments
14 pages, no figures. Latex-file. Reference added