Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
Thermodynamics of the PHI4 Theory in Tadpole Approximation
Peshier, A.; Kämpfer, B.; Pavlenko, O. P.; Soff, G.
Relying on the Luttinger-Ward theorem we derive a thermodynamically selfconsistent and scale independent approximation of the thermodynamic potential for the scalar Φ4 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.
Forschungszentrum Rossendorf; FZR-208
- Europhysics Letters 43 (4), pp. 381-385 (1998)