中国物理B ›› 1999, Vol. 8 ›› Issue (6): 409-415.doi: 10.1088/1004-423X/8/6/002

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LARMOR PRECESSION AND THE BARRIER INTERACTION TIME

丁秀香1, 梁九卿2   

  1. (1)Department of Physics, Shanxi University, Taiyuan 030006, China; (2)Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China; Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:1998-11-06 修回日期:1999-01-16 出版日期:1999-06-15 发布日期:1999-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 19677101 and 19775033).

LARMOR PRECESSION AND THE BARRIER INTERACTION TIME

Liang Jiu-qing (梁九卿)a, Ding Xiu-xiang (丁秀香)b   

  1. a Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China; Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; b Department of Physics, Shanxi University, Taiyuan 030006, China; 
  • Received:1998-11-06 Revised:1999-01-16 Online:1999-06-15 Published:1999-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 19677101 and 19775033).

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摘要： The Larmor precession of a spinning particle in a magnetic field confined in the region of one dimensional-rectangular barrier is investigated with the spin coherent state of incoming particle, which has advantage to recognize the equation of the spin precession. Our new observation is that the precession time of spin is uniquely determined and is seen to be equal to the dwell time.

Abstract: The Larmor precession of a spinning particle in a magnetic field confined in the region of one dimensional-rectangular barrier is investigated with the spin coherent state of incoming particle, which has advantage to recognize the equation of the spin precession. Our new observation is that the precession time of spin is uniquely determined and is seen to be equal to the dwell time.

中图分类号:  (Tunneling, traversal time, quantum Zeno dynamics)

  • 03.65.Xp
02.10.Ud (Linear algebra)