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arXiv · hep-th/9807118

n-point functions at finite temperature

Defu Hou·Enke Wang·Ulrich Heinz
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Abstract

We study $n$-point functions at finite temperature in the closed time path formalism. With the help of two basic column vectors and their dual partners we derive a compact decomposition of the time-ordered $n$-point functions with $2^n$ components in terms of $2^{n-1} -1$ independent retarded/advanced $n$-point functions. This representation greatly simplifies calculations in the real-time formalism.

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Defu Hou, Enke Wang, Ulrich Heinz. 1998-07-17. n-point functions at finite temperature. https://doi.org/10.1088/0954-3899%2F24%2F10%2F004

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