Reliability of the Optimized Perturbation Theory for scalar fields at finite temperature
arXiv:1211.7079 · doi:10.1063/1.4795989
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.
arXiv comment3 pages, 5 figures, Proceedings contribution for Hadrons XII