关于Lorentz-Stern-Gerlach力的形式
On the form of Lorentz-Stern-Gerlach force
摘要：
近年来，人们对具有反常磁矩的带电粒子在外场中所受的力重新产生了兴趣。本文从Dirac方程{ \em via}的Foldy-Wouthuysen变换方法出发，讨论了具有磁矩和电矩的自旋为1/2的点状带电粒子在依赖于时空的外电磁场中所受的力的基本问题。值得注意的是，由此导出的力不同于通过各种其他公式得到的力。
英文摘要：
In recent times there has been a renewed interest in the force experienced by a charged-particle with anomalous magnetic moment in the presence of external fields. In this paper we address the basic question of the force experienced by a spin-1/2 point-like charged-particle with magnetic and electric moments in the presence of space-and time-dependent external electromagnetic fields, when derived from the Dirac equation {\em via} the Foldy-Wouthuysen transformation technique. It is interesting to note that the force thus derived differs from the ones obtained by various other prescriptions.
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