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.
@article{arxiv.1211.7079,
title = {Reliability of the Optimized Perturbation Theory for scalar fields at finite temperature},
author = {R. L. S. Farias and D. L. Teixeira and R. O. Ramos},
journal= {arXiv preprint arXiv:1211.7079},
year = {2015}
}
Comments
3 pages, 5 figures, Proceedings contribution for Hadrons XII