论文标题
精确计量学符合宇宙学：从原子腔频率比较对超轻暗物质的限制改善
Precision Metrology Meets Cosmology: Improved Constraints on Ultralight Dark Matter from Atom-Cavity Frequency Comparisons
论文作者
论文摘要
我们进行了最先进的腹膜光学晶格时钟，低温晶体硅腔和氢mas的频率比较，以在超轻暗物质与标准模型粒子和质量范围内的$ 10^{-16} $ 10^$ 10^^$ 10^{ - $ 10^{ - 21} $ 10^{ - $ 10^{ - 21} $ ev的质量范围内建立新的界限。该两部分比较比较的关键优点是对高结构常数和电子质量的时间变化的差异敏感性，实现了对超轻暗物质模量的极大限制，尤其是在典型的原子光谱效果上，尤其是在典型的质量上。此外，我们通过使用动态脱钩技术来证明搜索范围扩展到更高的质量。这些结果强调了将最佳性能原子时钟用于基本物理应用程序的重要性，因为全光学时间尺度越来越多地与现有的Microwave TimeScales融为一体，并最终将取代现有的Microwave TimeScales。
We conduct frequency comparisons between a state-of-the-art strontium optical lattice clock, a cryogenic crystalline silicon cavity, and a hydrogen maser to set new bounds on the coupling of ultralight dark matter to Standard Model particles and fields in the mass range of $10^{-16}$ $-$ $10^{-21}$ eV. The key advantage of this two-part ratio comparison is the differential sensitivities to time variation of both the fine-structure constant and the electron mass, achieving a substantially improved limit on the moduli of ultralight dark matter, particularly at higher masses than typical atomic spectroscopic results. Furthermore, we demonstrate an extension of the search range to even higher masses by use of dynamical decoupling techniques. These results highlight the importance of using the best performing atomic clocks for fundamental physics applications as all-optical timescales are increasingly integrated with, and will eventually supplant, existing microwave timescales.
