中国物理B ›› 2003, Vol. 12 ›› Issue (9): 955-963.doi: 10.1088/1009-1963/12/9/306

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Magnetic guide of cold atoms using a U-shaped current-carrying conductor

刘南春1, 印建平2   

  1. (1)Department of Physics, Suzhou University, Suzhou 215006, China; (2)State Key Laboratory for Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China; Department of Physics, Suzhou University, Suzhou 215006, China
  • 收稿日期:2002-10-14 修回日期:2003-04-30 出版日期:2003-09-16 发布日期:2005-03-16
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 69878019 and 10174050), the Natural Science Foundation of Jiangsu Province, China (Grant Nos DK97139 and 00KJB140001), and the Fostering Foundation of New-Century Academic Leader from the Education Bureau of Jiangsu Province, China.

Magnetic guide of cold atoms using a U-shaped current-carrying conductor

Liu Nan-Chun (刘南春)b, Yin Jian-Ping (印建平)ab   

  1. a State Key Laboratory for Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China; b Department of Physics, Suzhou University, Suzhou 215006, China
  • Received:2002-10-14 Revised:2003-04-30 Online:2003-09-16 Published:2005-03-16
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 69878019 and 10174050), the Natural Science Foundation of Jiangsu Province, China (Grant Nos DK97139 and 00KJB140001), and the Fostering Foundation of New-Century Academic Leader from the Education Bureau of Jiangsu Province, China.

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摘要： We propose a new scheme to magnetically guide cold neutral atoms using a U-shaped current carrying conductor. The spatial magnetic field distribution from the U-shaped current-carrying conductor and the relationship between the magnetic field and parameters of the U-shaped conductor are analysed. Our study shows that U-shaped current-carrying conductor can be used to realize single- or double-channel magnetic guiding of cold atoms in weak-field-seeking states and to construct various atom-optical elements. By using Monte Carlo simulations, the dynamic process of the guided atomic-beam splitting in an atomic-beam splitter composed by the U-shaped current-carrying conductor is studied, and some results are presented.

Abstract: We propose a new scheme to magnetically guide cold neutral atoms using a U-shaped current carrying conductor. The spatial magnetic field distribution from the U-shaped current-carrying conductor and the relationship between the magnetic field and parameters of the U-shaped conductor are analysed. Our study shows that U-shaped current-carrying conductor can be used to realize single- or double-channel magnetic guiding of cold atoms in weak-field-seeking states and to construct various atom-optical elements. By using Monte Carlo simulations, the dynamic process of the guided atomic-beam splitting in an atomic-beam splitter composed by the U-shaped current-carrying conductor is studied, and some results are presented.

Key words: U-shaped current-carrying conductor, single-channel magnetic guide, double-channel magnetic guide, atom-optical elements

中图分类号:  (Reflectors, beam splitters, and deflectors)

  • 42.79.Fm
02.70.Uu (Applications of Monte Carlo methods)