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arXiv · hep-ph/9801344

Thermodynamics of the ϕ^4 theory in tadpole approximation

A. Peshier·B. Kämpfer·O. P. Pavlenko·G. Soff
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Abstract

Relying on the Luttinger-Ward theorem we derive a thermodynamically selfconsistent and scale independent approximation of the thermodynamic potential for the scalar $ϕ^4$ 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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A. Peshier, B. Kämpfer, O. P. Pavlenko, G. Soff. 1998-01-19. Thermodynamics of the ϕ^4 theory in tadpole approximation. https://doi.org/10.1209/epl%2Fi1998-00369-6

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