Three Point Functions at Finite Temperature
نویسنده
چکیده
We consider the calculations of three-point functions at nite temperature as they are usually performed in the literature. We show that as normally used, the Imaginary-Time and the Real Time nite temperature formalisms calculate expectation values of retarded and time ordered three point functions respectively. We also present a relation between these quantities that shows that they are not generally equal. In the past in nite temperature eld theory, attention has focused largely on two-point functions 1, 2]. Recently there has been increasing interest in
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