Massive renormalization scheme and perturbation theory at finite temperature - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Balkan Physics Letters Year : 2015

Massive renormalization scheme and perturbation theory at finite temperature

Abstract

We argue that the choice of an appropriate, massive, renormalization scheme can greatly improve the apparent convergence of perturbation theory at finite temperature. This is illustrated by the calculation of the pressure of a scalar field theory with quartic interactions, at 2-loop order. The result, almost identical to that obtained with more sophisticated resummation techniques, shows a remarkable stability as the coupling constant grows, in sharp contrast with standard perturbation theory.

Dates and versions

cea-01197313 , version 1 (11-09-2015)

Identifiers

Cite

Jean-Paul Blaizot, Nicolás Wschebor. Massive renormalization scheme and perturbation theory at finite temperature. Balkan Physics Letters, 2015, 741, pp.310. ⟨10.1016/j.physletb.2014.12.040⟩. ⟨cea-01197313⟩
50 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More