Transport in anisotropic model systems analyzed by a correlated projection superoperator technique.

  title={Transport in anisotropic model systems analyzed by a correlated projection superoperator technique.},
  author={Hendrik Weimer and Mathias Michel and Jochen Gemmer and G{\"u}nter Mahler},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={77 1 Pt 1},
  • H. Weimer, M. Michel, G. Mahler
  • Published 16 January 2008
  • Physics
  • Physical review. E, Statistical, nonlinear, and soft matter physics
By using a correlated projection operator, the time-convolutionless (TCL) method to derive a quantum master equation can be utilized to investigate the transport behavior of quantum systems as well. Here, we analyze a three-dimensional anisotropic quantum model system according to this technique. The system consists of Heisenberg coupled two-level systems in one direction and weak random interactions in all other ones. Depending on the partition chosen, we obtain ballistic behavior along the… 

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