论文标题
$^{115} $在$^+$ ion时钟和$^{87} $ sr光学晶格时钟的频率比
Frequency ratio of an $^{115}$In$^+$ ion clock and a $^{87}$Sr optical lattice clock
论文作者
论文摘要
我们报告$^{115} $ in+单个离子时钟和$^{87} $ sr光学晶格时钟的第一个频率比率测量。氢mas液作为参考振荡器，通过独立的光学梳子测量比率。在超过90 000秒的测量时间内，频率比$ f _ {\ rm {\ rm {in^+}}/f _ {\ rm {sr}} $确定为2.952 748 749 874 863 4（21），相对不确定，相对不确定为7.0 \ $ 7.0 \ $ 7.0 \ times \ times times times 10^^$ 16}。该测量在光学时钟的频率比网络网络中创建了新的连接。
We report on the first frequency ratio measurement of an $^{115}$In+ single ion clock and a $^{87}$Sr optical lattice clock. A hydrogen maser serves as a reference oscillator to measure the ratio by independent optical combs. Over more than 90 000 seconds of measurement time, the frequency ratio $f_{\rm{In^+}}/f_{\rm{Sr}}$ is determined to be 2.952 748 749 874 863 4(21) with relative uncertainty of $7.0 \times 10^{-16}$. The measurement creates a new connection in the network of frequency ratios of optical clocks.
