Real Time Correlation Functions at Finite Temperature and their Classical Limit

Details Real Time Correlation Functions at Finite Temperature and their Classical Limit Real Time Correlation Functions at Finite Temperature and their Classical Limit

1997-08-15

arxiv.org/abs/hep-ph/9708360v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, Talk given at the E"otv"os Conference in Science: Strong and Electroweak Matter, Eger, Hungary, 21-25 May 1997

Scientific paper

In order to investigate the reliability of the classical approximation for non-perturbative real time correlation functions at finite temperature we study the two-point correlator for the anharmonic oscillator. For moderately large times the classical limit gives a good approximation of the quantum result but after some time $t_*$ the classical approximation breaks down even at high temperature.

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