Dynamical instability of a two component Bose-Einstein Condensate in an optical lattice

Tasgin M. E., Oktel M. O.

12th Central European Workshop on Quantum Optics, Ankara, Turkey, 6 - 09 June 2005, vol.36, pp.200-202 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 36
  • Doi Number: 10.1088/1742-6596/36/1/030
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.200-202
  • Hacettepe University Affiliated: Yes


We investigate the dynamical instability for a two component Bose-Einstein Condensate (BEC) in an optical lattice. We assume that the two components are in sinusoidal potentials with the same period but different phases. We find a swallow-tail type instability near the band edge, however an extra tail is formed due to the inter-component interaction. Depending on the phase difference of the potentials, the instability region may expand or shrink with increasing inter-component interaction.