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首页> 外文期刊>Space Science Reviews >Editorial to the Topical Collection on High Performance Clocks with Special Emphasis on Geodesy and Geophysics and Applications to Other Bodies of the Solar System
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Editorial to the Topical Collection on High Performance Clocks with Special Emphasis on Geodesy and Geophysics and Applications to Other Bodies of the Solar System

机译：编辑到高性能时钟的局部收集，特别强调大地和地球物理学和应用于太阳系的其他机构

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As described by one of the papers of this topical collection (Delva et al. 2017), there are two fundamental theories of physics: the Standard Model of particle physics that describes electromagnetism and the (strong and weak) nuclear interactions, and General Relativity that accounts for all gravitational phenomena. The dream of all physicists is to unify these two theories, describing as much as possible of the observed Universe and solving the stillremaining open issues of both theories and observations (e.g. the nature of dark matter and dark energy).Most physicists agree that there is still one theory that remains to be discovered in that respect. Attempts at such a unified theory lead to tiny violations of the basic principles of these theories, in particular of the Einstein Equivalence Principle (i.e., equivalence of gravitational and inertial masses). Delva et al. (2017) review a number of alternative theories and present their pros and cons, as well as the possibilities that can be offered by further more-precise observations, in particular by using high performance clocks. The search for discoveries at the experimental level requires high accuracy measurements that need the use of the outstanding performance offered by a time/frequency metrology. The role of clocks in these observations is fundamental and their use outside the Earth's gravitational field is also fundamental. Clocks on Earth are limited by the knowledge of the local Earth potential and of its fluctuations. As a matter of fact, the SI units themselves rely on a time/frequency realization.
机译：如该局部收集的一篇论文所述（Delva等，2017），物理学有两个基本的理论：描述电磁和（强且弱）核相互作用的粒子物理学的标准模型，以及一般相对性占所有引力现象。所有物理学家的梦想是统一这两个理论，尽可能地描述了观察到的宇宙，并解决了两种理论和观察的失真期问题（例如暗物质和黑暗能量的性质）。大多数物理学家都同意在这方面仍有待发现的一个理论。这种统一理论的尝试导致微小的违反这些理论的基本原理，特别是爱因斯坦等效原理（即引力和惯性群体的等价性）。 Delva等人。 （2017）审查若干替代理论，并呈现他们的利弊，以及通过使用高性能时钟的进一步更精确的观测可以提供的可能性。在实验级别搜索发现的发现需要高精度测量，需要使用时间/频率计量提供的出色性能。时钟在这些观察中的作用是基本的，其在地球的引力场外的使用也是基础。地球上的时钟受到局部地球潜力和波动的知识。事实上，SI单位本身依赖于时间/频率实现。

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