Reliability of the Optimized Perturbation Theory for scalar fields at finite temperature
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.
- Publication:
-
XII Hadron Physics
- Pub Date:
- March 2013
- DOI:
- 10.1063/1.4795989
- arXiv:
- arXiv:1211.7079
- Bibcode:
- 2013AIPC.1520..330F
- Keywords:
-
- finite temperature field theory;
- perturbation theory;
- reliability;
- 11.10.Wx;
- Finite-temperature field theory;
- High Energy Physics - Phenomenology;
- Condensed Matter - Statistical Mechanics;
- High Energy Physics - Theory;
- Nuclear Theory
- E-Print:
- 3 pages, 5 figures, Proceedings contribution for Hadrons XII