Multi-time correlations in relaxing quantum dynamical systems
J. Andries, F. Benatti, M. De Cock, M. Fannes
Abstract
In this paper, we consider the long time asymptotics of multi-time correlation functions for quantum dynamical systems that are sufficiently random to relax to a ``reference state''. In particular, the evolution of such systems must have a continuous spectrum. Special attention is paid to general dynamical clustering conditions and their consequences for the structure of fluctuations of temporal averages.
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