Effective potential in the BET formalism

Details Effective potential in the BET formalism Effective potential in the BET formalism

2011-04-06

arxiv.org/abs/1104.1084v1

Phys.Rev.D83:125016,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 3 figures

Scientific paper

10.1103/PhysRevD.83.125016

We calculate the one-loop effective potential at finite temperature for a system of massless scalar fields with quartic interaction $\lambda\phi^4$ in the framework of the boundary effective theory (BET) formalism. The calculation relies on the solution of the classical equation of motion for the field, and Gaussian fluctuations around it. Our result is non-perturbative and differs from the standard one-loop effective potential for field values larger than $T/\sqrt{\lambda}$.

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