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A Proposal for Realizing BEC of 133Cs Atoms in Blue-Detuned Ar+ Hollow-Beam Trap

  • Jianping Yin
  • Weijian Gao
  • Yiqiu Wang
Conference paper

Abstract

We propose an all-optically-cooled and -trapped Cs BEC scheme, which is composed of a pyramidal-hollow-beam gravito-optical trap (PHB GOT) from a diode laser and a conical-hollow-beam (CHB) GOT from an Ar+ laser. In the PHB GOT, the cold atoms experience an efficient hollow-beam induced Sisyphus cooling and repumpimg-beam induced geometric cooling, and they will be cooled to a few photon-recoil limits from MOT’s temperature (~60 μK). Whereas in the Ar+ hollow-laser-beam trap, cold atoms will be further cooled by Raman cooling and compressed by a blue-detuned cover beam. We have performed Monte-Carlo simulations for PHB cooling process, calculated the optical potential for 133Cs atoms in Ar+ hollow laser beam, and estimated total atomic loss and density. Our study shows that an optically-trapped Bose-Einstein condensation (BEC) of 133Cs atoms may be observed in our all-optical dipole trap.

Keywords

Cold Atom Magnetic Trap Trapping Potential Dipole Trap Atomic Sample 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Jianping Yin
    • 1
    • 2
  • Weijian Gao
    • 1
    • 2
  • Yiqiu Wang
    • 3
  1. 1.Department of PhysicsSuzhou University SuzhouJiangsuP. R China
  2. 2.Department of ElectronicsPeking University BeijingP. R. China
  3. 3.Université Department of ElectronicsPeking University BeijingP. R. China

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