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On the relation between Euclidean and real time calculations of Green functions at finite temperature
classification
✦ hep-ph
keywords
temperaturefinitegreenrealrelationtimeanharmonicapproximation
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We find a relation between the semiclassical approximation of the temperature (Matsubara) 2-point correlator and the corresponding classical Green function in real time at finite temperature. The anharmonic oscillator at finite temperature is used to illustrate our statement, which is however of rather general origin.
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