Dynamical instabilities of Bose-Einstein condensates at the band edge in one-dimensional optical lattices

@inproceedings{Ferris2008DynamicalIO,
  title={Dynamical instabilities of Bose-Einstein condensates at the band edge in one-dimensional optical lattices},
  author={Andrew J. Ferris and Matthew J. Davis and Reece W. Geursen and Peter B. Blakie and Andrew. C. Wilson},
  year={2008}
}
We report on experiments that demonstrate dynamical instability in a Bose-Einstein condensate at the band-edge of a one-dimensional optical lattice. The instability manifests as rapid depletion of the condensate and conversion to a thermal cloud. We consider the collisional processes that can occur in such a system, and perform numerical modeling of the experiments using both a mean-field and beyond mean-field approach. We compare our numerical results to the experimental data, and find that… CONTINUE READING