n-point functions at finite temperature
نویسندگان
چکیده
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 components in terms of 2n−1 − 1 independent retarded/advanced n-point functions. This representation greatly simplifies calculations in the real-time formalism. PACS numbers: 11.10Wx, 11.15Tk, 11.55Fv Typeset using REVTEX 1
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