Localization of coherent exciton transport in phase space.

  title={Localization of coherent exciton transport in phase space.},
  author={Oliver M{\"u}lken and Veronika Bierbaum and Alexander Blumen},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={75 3 Pt 1},
We study numerically the dynamics of excitons on discrete rings in the presence of static disorder. Based on continuous-time quantum walks we compute the time evolution of the Wigner function (WF) both for pure diagonal (site) disorder, as well as for diagonal and off-diagonal (site and transfer) disorder. In both cases, large disorder leads to localization… CONTINUE READING