Equation of Motion of a Spinning Test Particle in Gravitational Field  

作　　者：WU Ning 

机构地区：[1]Institute of High Energy Physics, the Chinese Acndemy of Sciences, P.O. Box 918-1, Beijing 100049, China

出　　处：《Communications in Theoretical Physics》2008年第1期129-132,共4页理论物理通讯（英文版）

摘　　要：Based on the coupfing between the spin of a particle and gravitoelectromagnetic field, the equation of motion of a spinning test particle in gravitational field is deduced. From this equation of motion, it is found that the motion of a spinning particle deviates from the geodesic trajectory, and this deviation originates from the coupling between the spin of the particle and gravitoelectromagnetic field, which is also the origin of Lense-Thirring effects. In post-Newtonian approximations, this equation gives the same results as those of Mathisson-Papapetrou equation. Effect of the deviation of geodesic trajectory is detectable.

关 键 词：equation of motion of a spinning particle gauge theory of gravity geodesic trajectory 

分 类 号：O3[理学—力学]