Chesler Paul M, Loeb Abraham
Black Hole Initiative, Harvard University, Cambridge, Massachusetts 02138, USA.
Phys Rev Lett. 2017 Jul 21;119(3):031102. doi: 10.1103/PhysRevLett.119.031102. Epub 2017 Jul 18.
In the weak-field limit of general relativity, gravitational waves obey linear equations and propagate at the speed of light. These properties of general relativity are supported by the observation of ultrahigh-energy cosmic rays as well as by LIGO's recent detection of gravitation waves. We argue that two existing relativistic generalizations of modified Newtonian dynamics, namely, the generalized Einstein-aether theory and bimetric modified Newtonian dynamics, display fatal inconsistencies with these observations.
在广义相对论的弱场极限下，引力波遵循线性方程并以光速传播。广义相对论的这些特性得到了超高能宇宙射线观测以及LIGO最近对引力波的探测的支持。我们认为，修正牛顿动力学的两种现有的相对论推广，即广义爱因斯坦-以太理论和双度规修正牛顿动力学，与这些观测结果存在致命的不一致。
