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Equation of Motion of a Spinning Test Particle in Gravitational Field

Ning Wu
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Abstract

Based on the coupling 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 out the same results as those of Papapetrou equation. Effect of the deviation of geodesic trajectory is detectable.

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Ning Wu. 2006-08-08. Equation of Motion of a Spinning Test Particle in Gravitational Field. https://doi.org/10.1088/0253-6102%2F49%2F1%2F29

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