Quasi-equilibrium relaxation of two identical quantum oscillators with arbitrary coupling strength

@article{Dorofeyev2014QuasiequilibriumRO,
  title={Quasi-equilibrium relaxation of two identical quantum oscillators with arbitrary coupling strength},
  author={Illarion Dorofeyev},
  journal={Canadian Journal of Physics},
  year={2014},
  volume={93},
  pages={750-759}
}
  • I. Dorofeyev
  • Published 1 July 2014
  • Physics
  • Canadian Journal of Physics
This paper deals with the problem of open systems out of equilibrium. An analytical expression for a time-dependent density matrix of two arbitrarily coupled identical quantum oscillators interacting with separate reservoirs is derived using path integral methods. The temporal behavior of spatial variances and of covariance from given initial values up to stationary values is investigated. It is shown that at comparatively low coupling strengths, the asymptotic variances in the long-time limit… 
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