中国物理B ›› 2002, Vol. 11 ›› Issue (5): 472-480.doi: 10.1088/1009-1963/11/5/312

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Arrays of microscopic magnetic traps for cold atoms and their applications in atom optics

高伟建1, 胡建军1, 印建平2   

  1. (1)Department of Physics, Suzhou University, Suzhou 215006, China; (2)Key Laboratory for Optical and Magnetic Resonance Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China; Department of Physics, Suzhou University, Suzhou 215006, China
  • 收稿日期:2001-06-10 修回日期:2001-12-23 出版日期:2002-05-13 发布日期:2005-06-13
  • 基金资助:
    Project supported by the National Natural Science Foundations of China (Grant Nos 69878019 and 10174050), the Natural Science Foundation of Jiangsu Province, China (Grant No DK97139), and the Natural Science Foundation of Education Bureau of Jiangsu Provi

Arrays of microscopic magnetic traps for cold atoms and their applications in atom optics

Yin Jian-Ping (印建平)ab, Gao Wei-Jian (高伟建)b, Hu Jian-Jun (胡建军)b   

  1. a Key Laboratory for Optical and Magnetic Resonance Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China; b; Department of Physics, Suzhou University, Suzhou 215006, China
  • Received:2001-06-10 Revised:2001-12-23 Online:2002-05-13 Published:2005-06-13
  • Supported by:
    Project supported by the National Natural Science Foundations of China (Grant Nos 69878019 and 10174050), the Natural Science Foundation of Jiangsu Province, China (Grant No DK97139), and the Natural Science Foundation of Education Bureau of Jiangsu Provi

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摘要： A single microscopic magnetic trap for neutral atoms using planar current-carrying wires was proposed and studied theoretically by Weinstein et al. In this paper, we propose three structures of composite current-carrying wires to provide 1D, 2D and 3D arrays of microscopic magnetic traps for cold alkali atoms. The spatial distributions of magnetic fields generated by these structures are calculated and the field gradient and curvature in each single microtrap are analysed. Our study shows that arrays of microscopic magnetic traps can be used to provide 1D, 2D or 3D atomic magnetic lattices, and even to realize 1D, 2D and 3D arrays of magneto-optical traps, and so on.

关键词: magnetic micro-trap array, current-carrying wire array, atomic magnetic lattices

Abstract: A single microscopic magnetic trap for neutral atoms using planar current-carrying wires was proposed and studied theoretically by Weinstein et al. In this paper, we propose three structures of composite current-carrying wires to provide 1D, 2D and 3D arrays of microscopic magnetic traps for cold alkali atoms. The spatial distributions of magnetic fields generated by these structures are calculated and the field gradient and curvature in each single microtrap are analysed. Our study shows that arrays of microscopic magnetic traps can be used to provide 1D, 2D or 3D atomic magnetic lattices, and even to realize 1D, 2D and 3D arrays of magneto-optical traps, and so on.

Key words: magnetic micro-trap array, current-carrying wire array, atomic magnetic lattices

中图分类号:  (Atom and neutron optics)

  • 03.75.Be
32.60.+i (Zeeman and Stark effects)