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

  • C. X. Zhang
  • B. Zhou
  • Y. H. Nie
  • J. Q. Liang
  • J. Liu
Article
  • 54 Downloads

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 excitations 05.45.-a Nonlinear dynamics and chaos 05.60.Gg Quantum transport 42.25.Bs Wave propagation, transmission and absorption 

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Copyright information

© Springer 2008

Authors and Affiliations

  • C. X. Zhang
    • 1
    • 2
    • 3
  • B. Zhou
    • 2
    • 4
  • Y. H. Nie
    • 3
  • J. Q. Liang
    • 3
  • J. Liu
    • 5
  1. 1.Physical DepartmentZhejiang Ocean UniversityZhoushanP.R. China
  2. 2.Department of Physics, and Center for Theoretical and Computational PhysicsThe University of Hong KongHong KongP.R. China
  3. 3.Institute of Theoretical Physics and Department of PhysicsShanxi UniversityShanxiP.R. China
  4. 4.Department of PhysicsHubei UniversityWuhanP.R. China
  5. 5.Institute of Applied Physics and Computational MathematicsBeijingP.R. China

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