Pressure of massless hot scalar theory in the boundary effective theory framework
High Energy Physics - Phenomenology
2011-05-12 v1
Abstract
We use the boundary effective theory (BET) approach to thermal field theory in order to calculate the pressure of a system of massless scalar fields with quartic interaction. The method naturally separates the infrared physics, and is essentially non-perturbative. To lowest order, the main ingredient is the solution of the free Euler-Lagrange equation with non-trivial (time) boundary conditions. We derive a resummed pressure, which is in good agreement with recent calculations found in the literature, following a very direct and compact procedure.
Keywords
Cite
@article{arxiv.1009.5682,
title = {Pressure of massless hot scalar theory in the boundary effective theory framework},
author = {A. Bessa and F. T. Brandt and C. A. A. de Carvalho and E. S. Fraga},
journal= {arXiv preprint arXiv:1009.5682},
year = {2011}
}
Comments
10 pages, 4 figures