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arXiv · 1211.7079

Reliability of the Optimized Perturbation Theory for scalar fields at finite temperature

R. L. S. Farias·D. L. Teixeira Jr·R. O. Ramos
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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.

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R. L. S. Farias, D. L. Teixeira Jr, R. O. Ramos. 2012-11-29. Reliability of the Optimized Perturbation Theory for scalar fields at finite temperature. https://doi.org/10.1063/1.4795989

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