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arXiv · hep-th/9705158

Non-perturbative Evaluation of the Effective Potential of $λϕ^4$ Theory at Finite Temperature under the Super-Daisy Approximation

Jiro Arafune·Kenzo Ogure·Joe Sato
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Abstract

We calculate the effective potential of the scalar theory at finite temperature under the super-daisy approximation, after expressing its derivative with respect to mass square in terms of the full propagator. This expression becomes the self-consistent equation for the derivative of the effective potential. We find the phase transition is first order with this approximation. We compare our result with others.

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Jiro Arafune, Kenzo Ogure, Joe Sato. 1997-05-21. Non-perturbative Evaluation of the Effective Potential of $λϕ^4$ Theory at Finite Temperature under the Super-Daisy Approximation. https://doi.org/10.1143/ptp.99.119

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