Dynamic localization and transport of a quantum particle in an optical lattice.

POSTER

Abstract

We study the localization and the transport of a quantum particle in an optical lattice under the influence of an AC electric field. For the description of the particle we use a generalized Discrete Nonlinear Schr\"odinger equation with local and nonlocal nonlinearities Depending on the parameters of the system, and the external driving field, different behavior is observed (hopping, diffusion, dynamic localization). We explore numerically the behavior of the particle for different values of the external field and the internal nonlinearity parameters, and we compare our results with experimental observations.

Authors

  • Panagiotis Maniadis

    • Los Alamos National Laboratory, Los Alamos NM

  • Giorgos Tsironis

    • University of Crete and FORTH
    • Department of Physics and FORTH, University of Crete, Greece
    • University of Crete, and Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas
    • Physics Department, University of Crete, and IESL, Foundation of Research and Technology, P. O. Box 2208, 71003, Heraklion, Greece