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Inertial forces and photon surfaces in arbitrary spacetimes

机译:任意空间的惯性力和光子表面

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摘要

Given, in an arbitrary spacetime (M, g), a two-dimensional timelike submanifold Sigma and an observer field n on Sigma, we assign gravitational, centrifugal, Coriolis and Euler forces to every particle worldline lambda in Sigma with respect to n. We prove that centrifugal and Coriolis forces vanish, for all lambda in Sigma with respect to any n, if and only if Sigma is a photon 2-surface, i.e., generated by two families of lightlike geodesics. We further demonstrate that a photon 2-surface can be characterized in terms of gyroscope transport and we give several mathematical criteria for the existence of photon 2-surfaces. Finally, examples of photon 2-surfaces in conformally flat spacetimes, in Schwarzschild and Reissner-Nordstrom spacetimes, and in Godel spacetime are worked out. [References: 21]
机译:在任意的时空(M,G)中,在ΣMA的任意时空(M,G),二维时间般的子纤维σ和观察者域N,我们将引力,离心,科里奥利和欧拉力分配到σ中的每个粒子世界Lambda相对于n。 我们证明了离心和科里奥利力的力,对于任何n,如果σ是光子2-表面,即,由两个灯状地理学的两个家庭产生的,那么,即仅当ΣIigma,即仅当ΣIigma,而且,那么。 我们进一步证明光子2-表面可以表征陀螺仪传输,并且我们提供了用于存在光子2-表面的几个数学标准。 最后,在Schwarzschild和Reissner-Nordstromssthetims中,在施瓦茨柴尔德和Reissner-Nordstrom的光子2-表面的实例进行了实施。 [参考:21]

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