arXiv:1211.7079·v1·High Energy Physics — Phenomenology
Reliability of the Optimized Perturbation Theory for scalar fields at finite temperature
R. L. S. Farias🇧🇷 · D. L. Teixeira Jr🇧🇷 · R. O. Ramos🇧🇷
Abstract
The thermodynamics of a massless scalar field with a quartic interaction is studied up to third order in the Optimized Perturbation Theory (OPT) method. A comparison with other nonperturbative approaches is performed such that the reliability of OPT is accessed.
Comments: 3 pages, 5 figures, Proceedings contribution for Hadrons XII