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在Niemi和Semenoff提出的实时有限温度标量场论的基础上,将其推广到规范场的情形,使之适用于闵氏空间的有限温度QCD。利用本文引入的有限温度传播子,计算了高温QCD自由能的二圈修正,结果和Kapusta用欧氏空间场论方法得到的结果一致。The scalar field theory at finite temperature of real time suggested by Nieme and Semenoff is extended to the ease of gauge field. It is useful in finite temperature QCD in Minkowski space. With the propagator of finite temperature QCD introduced in this paper, the two-loop correction of free energy of high temperature QCD is calculated and the result is consistent with that obtained by Kapusta with the method of Euclidean field theory.
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