Non-perturbative evaluation of the effective potential of λΦ＾4 theory at finite temperature in the super-daisy approximation

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  • Arafune Jiro
    Institute for Cosmic Ray Research University of Tokyo, Tanashi 188, Japan
  • Ogure Kenzo
    Institute for Cosmic Ray Research University of Tokyo, Tanashi 188, Japan
  • Sato Joe
    Department of Physics, School of Science University of Tokyo, Tokyo 113, Japan

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タイトル別名
  • Non-Perturbative Evaluation of the Effective Potential of .LAMBDA..PHI.4 Theory at Finite Temperature in the Super-Daisy Approximation.
  • Non-Perturbative Evaluation of the Effe
  • Non-Perturbative Evaluation of the Effective Potential of   4 Theory at Finite Temperature in the Super-Daisy Approximation

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説明

We calculate the effective potential of λφ4 theory at finite temperature in the super-daisy approximation, after expressing its derivative with respect to the mass square in terms of the full propagator. This expression becomes a self-consistent equation for the derivative of the effective potential. We find the phase transition is first order in this approximation. We compare our result with those of previous studies.

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