LARMOR PRECESSION AND THE BARRIER INTERACTION TIME
Liang Jiu-qing (梁九卿)a, Ding Xiu-xiang (丁秀香)b
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;
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.
Received: 06 November 1998
Revised: 16 January 1999
Accepted manuscript online:
PACS:
03.65.Xp
(Tunneling, traversal time, quantum Zeno dynamics)
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