论文标题
通过光学时钟的频率比较，爱因斯坦等效原理的测试
Test of Einstein Equivalence Principle by frequency comparisons of optical clocks
论文作者
论文摘要
爱因斯坦等效原理（EEP）在理解重力和时空理论中扮演着关键的作用。它保证了重力被理解为几何现象。考虑到标准模型扩展中物质的重力耦合，我们提出了一种使用频率测量的新方案，以限制正常物质中的等效原理违规。该提案包括对高精度时钟的比较，与自由下落的框架合并。地球表面上相同的时钟类型的实验比较可用于进行拟议的测试，该测试允许同时进行弱等效原理和重力红移的测试。从现有的SR光学时钟实验中，我们同时确定与地球相关的参数$β_ {\ text {e}} $和时钟相关参数$ξ_ {\ text {sr}} $，以$ 10^{ - 5} $的水平以及与Gravitention and lun lun lun lun lun lun lun Redsshift，限制了洛伦兹违规的标准模型扩展系数。这项工作为原子或光学时钟的连续改进精度提供了另一个重要的基本物理应用。
The Einstein Equivalence Principle (EEP) carries a pivotal role in understanding theory of gravity and spacetime. It guarantees the gravity to be understood as geometric phenomenon. Considering gravitational coupling of matter in the standard model extension, we propose a novel scheme using frequency measurements to limit the equivalence principle violations in normal matter. The proposal consists of the comparison of high-precision clocks, comoving with the freely falling frame. The experimental comparison of identical kind of clocks on Earth surface can be used to carry out the proposed test, which allows performing simultaneous tests of weak equivalence principle and gravitational redshift. From the existing experiments of Sr optical clocks, we present a simultaneous determination of Earth-dependent parameter $β_{\text{E}}$ and clock-dependent parameter $ξ_{\text{Sr}}$ at the level of $10^{-5}$, and in combination with the gravitational redshift experiments and lunar laser ranging, we also obtain a limit on standard model extension coefficients for Lorentz violation. This work provides another important fundamental physics application for the continuous-improvement accuracy of atomic or optical clocks.
