Brownian motion of quantum harmonic oscillators: Existence of a subdynamics

  title={Brownian motion of quantum harmonic oscillators: Existence of a subdynamics},
  author={G{\"o}ran Lindblad},
  journal={Journal of Mathematical Physics},
  • G. Lindblad
  • Published 23 October 1998
  • Physics
  • Journal of Mathematical Physics
The effects of system-environment correlations on the dynamics of an open quantum system are investigated for the standard model of a set of quantum harmonic oscillators interacting with a heat bath of oscillators. By definition, a subdynamics is described by transformations of the open system observables. It is shown that such a construction can reproduce the observable properties of the exact dynamics only when the states of system and environment are uncorrelated, while for classical systems… 
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