Two-Loop Finite Temperature Effective Potential with Fermion : Particles and Fields

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概要

• 論文の詳細を見る

• We apply a new real time finite temperature formalism, Thermo Field Dynamics, to the theories involving fermion. A detailed calculation of two-loop finite temperature effective potential is given for the model with a fermion and a real scalar. As another application we provide a concise derivation of the imaginary part in a four-fermion theory by the use of a simple formula obtained for the thermo propagator. We observe a difference from the previous two-loop calculations based on the imaginary time formalism. A summary is given of all the essential techniques of perturbation in Thermo Field Dynamics with respect to the evaluation of both real and imaginary parts of finite temperature Feynman diagrams.

• 理論物理学刊行会の論文
• 1985-11-25

著者

• Fujimoto Yasushi

  Research Institute For Fundamental Physics Kyoto University

• GRIGJANIS Robert

  Department of Physics, University of Alberta

• Grigjanis Robert

  Department Of Physics University Of Alberta

• FUJIMOTO Yasushi

  I.C.T.P. : Department of Physics, University of Alberta : Research Institute for Fundamental Physics, Kyoto University

関連論文

• Two-Loop Finite Temperature Effective Potential. I : Real Scalar Theory with Cubic Term : Particles and Fields
• Two-Loop Finite Temperature Effective Potential with Fermion : Particles and Fields

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