中国物理B ›› 2009, Vol. 18 ›› Issue (11): 4823-4828.doi: 10.1088/1674-1056/18/11/035

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Dynamic splitting and merging of an atom cloud on an atom chip

柯敏, 颜波, 程峰, 王育竹   

  1. The Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences,[1mm] Shanghai 201800, China;Center for Cold Atom Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2008-12-09 修回日期:2009-02-23 出版日期:2009-11-20 发布日期:2009-11-20
  • 基金资助:
    Project supported by the State Key Basic Research Program of China (Grant No 2006CB921202) and the National Natural Science Foundation of China (Grant No 10334050).

Dynamic splitting and merging of an atom cloud on an atom chip

Ke Min(柯敏),Yan Bo(颜波), Cheng Feng(程峰), and Wang Yu-Zhu(王育竹)†   

  1. The Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; Center for Cold Atom Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2008-12-09 Revised:2009-02-23 Online:2009-11-20 Published:2009-11-20
  • Supported by:
    Project supported by the State Key Basic Research Program of China (Grant No 2006CB921202) and the National Natural Science Foundation of China (Grant No 10334050).

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摘要： Chip-based atom interferometers bring together the advantages of atom chips and Bose--Einstein condensates. Their central prerequisite is that a condensate can be coherently split into two halves with a determined relative phase. This paper demonstrates the dynamical splitting and merging of an atom cloud with two U-wires on an atom chip. Symmetrical and asymmetrical splittings are realized by applying a bias field with dif\/ferent directions and magnitudes. The trajectories of the splitting are consistent with theoretical calculations. The atom chip is a good candidate for constructing an atom interferometer.

Abstract: Chip-based atom interferometers bring together the advantages of atom chips and Bose--Einstein condensates. Their central prerequisite is that a condensate can be coherently split into two halves with a determined relative phase. This paper demonstrates the dynamical splitting and merging of an atom cloud with two U-wires on an atom chip. Symmetrical and asymmetrical splittings are realized by applying a bias field with dif\/ferent directions and magnitudes. The trajectories of the splitting are consistent with theoretical calculations. The atom chip is a good candidate for constructing an atom interferometer.

Key words: atom chip, dynamic splitting and merging, chip-based atom interferometers

中图分类号:  (Atom and neutron interferometry)

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