Phase transition of a scalar field theory at high temperatures |
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Institution: | Physics Department, Kobe University, Kobe 657-8501, Japan |
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Abstract: | At high temperatures a four dimensional field theory is reduced to a three dimensional field theory. In this letter we consider the φ4 theory whose parameters are chosen so that a thermal phase transition occurs at a high temperature. Using the known properties of the three dimensional theory, we derive a non-trivial correction to the critical temperature. |
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