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arXiv 1005.2805gr-qchep-th
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Horava-Lifshitz引力的粒子探测

Particle Probe of Horava-Lifshitz Gravity

Bogeun Gwak, Bum-Hoon Lee

摘要:

利用粒子测地线研究了Hoenava-Lifshitz引力场中的Kehagias-Sfetsos黑洞。KS黑洞的引力在视界附近和内部空间变得比Schwarzschild弱。粒子可以总是被分散或被困在新的封闭轨道中,不像那些永远落在史瓦西黑中的粒子。利用耦合常数的取值对零测地线和类时测地线的性质进行了分类。计算了轨道的进动率。对于零测地线和类时测地线,在不同的耦合常数值下对时间轨迹进行了分类。可能观察到的物理现象进行了讨论。

英文摘要:

Kehagias-Sfetsos black hole in Hořava-Lifshitz gravity is probed through particle geodesics. Gravitational force of KS black hole becomes weaker than that of Schwarzschild around horizon and interior space. Particles can be always scattered or trapped in new closed orbits, unlike those falling forever in Schwarzschild black. The properties of null and timelike geodesics are classified with values of coupling constants. The precession rates of the orbits are evaluated. The time trajectories are also classified under different values of coupling constants for both null and timelike geodesics. Physical phenomena that may be observable are discussed.

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