The European Physical Journal D

, Volume 49, Issue 2, pp 161–165

Scattering effect of atoms through a Bose-Einstein condensate in an optical Lattice with a single defect

Authors

    • Physical DepartmentZhejiang Ocean University
    • Department of Physics, and Center for Theoretical and Computational PhysicsThe University of Hong Kong
    • Institute of Theoretical Physics and Department of PhysicsShanxi University
  • B. Zhou
    • Department of Physics, and Center for Theoretical and Computational PhysicsThe University of Hong Kong
    • Department of PhysicsHubei University
  • Y. H. Nie
    • Institute of Theoretical Physics and Department of PhysicsShanxi University
  • J. Q. Liang
    • Institute of Theoretical Physics and Department of PhysicsShanxi University
  • J. Liu
    • Institute of Applied Physics and Computational Mathematics
Article

DOI: 10.1140/epjd/e2008-00155-6

Cite this article as:
Zhang, C.X., Zhou, B., Nie, Y.H. et al. Eur. Phys. J. D (2008) 49: 161. doi:10.1140/epjd/e2008-00155-6
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Abstract

We study the transport of atoms across a localized Bose-Einstein condensate in an onedimensional optical lattice with a single defect. Our analytical and numerical results show that the defect as well as the nonlinear parameter can control the transmission of the atoms beam and the position of total reflection caused by Fano resonance. These interesting features may be a very useful basis for devising tunable atom filters or a button.

PACS

03.75.Lm Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations05.45.-a Nonlinear dynamics and chaos05.60.Gg Quantum transport42.25.Bs Wave propagation, transmission and absorption

Copyright information

© Springer 2008