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By means of a formal analogy with the Aharonov-Bohm effect, the Sagnac time delay and the corresponding Sagnac phase shift in the Kerr-Newman and Reissner-Nordstrfm spacetimes are discussed. We find that the effect depends on the properties of the source of the gravitational field. The contributions made by the electric charge of the gravitational source can be employed to weaken it in the Kerr-Newman spacetime, even if a phase shift and a time delay still appear. This is due to the properties of the rotating source of the gravitational field. 相似文献
2.
In this paper the repulsive effects in the Kerr and Kerr--Newman fields are
discussed. The contributions made by all parameters of the fields and test
particles to the repulsive effects are also discussed, and the accretive
effect on interstellar dust, i.e. the distribution of dust is calculated.
The discussion is also carried out on the slow rotation of the Kerr field in
which the effect is related to the positions and velocities of the particles
and the orientations of their trajectories as well. 相似文献
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