arXiv 1208.22932012-08hep-thgr-qc

重力近区动力学效应

Near Zone Dynamical Effects in Gravity

Victor Massart, M. B. Paranjape

备注：: 31 pages, 3 figures, title changed, coauthor added, corrected and greatly expanded version, accepted version

摘要：

广义相对论中的动力学效应终于在最近被LIGO \cite{2016LRR....19....1A}观测到了。为了能够测量这些信号，必须非常小心地将检测器中的所有噪声源最小化。噪声的来源之一被称为牛顿噪声。在这篇文章中，我们提出了一个分析的动力学（时间相关）性质的牛顿噪声。在这方面，称之为牛顿噪声是用词不当的，牛顿理论没有提供任何引力场的动力学概念。牛顿噪声性质的动力学方面迄今一直被忽视，因为它们被认为是可以忽略的。然而，我们证明它们确实距离可测量的境界不远。它们可以用来验证爱因斯坦的广义相对论，或者提供关于引力的真正动力学性质的有价值的信息。例如，一个基本问题是直接测量引力效应的传播速度，并验证它确实与光速相同。我们提出了一个简单的实验室实验，可以肯定或否定这一命题。我们还分析了探测大型地球物理事件（如地震）的可能性。我们发现，大地震事件似乎是很容易观察到与目前的引力波探测器的合奏。引力波探测器的集合可以很容易地作为灾难性地震事件的早期预警系统。

英文摘要：

Dynamical effects in general relativity have been finally, relatively recently observed by LIGO\cite{2016LRR....19....1A}. To be able to measure these signals, great care has to be taken to minimize all sources of noise in the detector. One of the sources of noise is called Newtonian noise. In this article we present an analysis of the dynamical (time dependent) nature of the Newtonian noise. In that respect, it is a misnomer to call it Newtonian noise, the Newtonian theory does not afford any dynamical notion of the gravitational field. The dynamical aspects of the nature of the Newtonian noise have heretofore been disregarded as they were considered negligible. However, we demonstrate that they are indeed not far from the realm of being measurable. They could be used to validate Einsteinian general relativity or to give valuable information on the true dynamical nature of gravity. One fundamental question, for example, is a direct measurement the speed of propagation of gravitational effects and the verification that it is indeed the same as the speed of light. We propose a simple laboratory experiment that could affirm or deny this proposition. We also analyze the possibility of the detection of large geophysical events, such as earthquakes. We find that large seismic events seem to be easily observable with the present ensemble of gravitational wave detectors,. The ensemble of gravitational wave detectors could easily serve as a system of early warning for otherwise catastrophic seismic events.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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英文摘要：

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