Thermodynamics of the φ^4 theory in tadpole approximation

Details Thermodynamics of the φ^4 theory in tadpole approximation Thermodynamics of the φ^4 theory in tadpole approximation

1998-01-19

arxiv.org/abs/hep-ph/9801344v1

Europhys.Lett.43:381-385,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, including 1 eps figure

Scientific paper

10.1209/epl/i1998-00369-6

Relying on the Luttinger-Ward theorem we derive a thermodynamically
selfconsistent and scale independent approximation of the thermodynamic
potential for the scalar $\phi^4$ theory in the tadpole approximation. The
resulting thermodynamic potential as a function of the temperature is similar
to the one of the recently proposed screened perturbation theory.

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