论文标题
$^2 $ d $ _ {5/2} $状态和二次Zeeman系数的精确表征$^{171} $ yb $^+$
Precision Characterization of the $^2$D$_{5/2}$ State and Quadratic Zeeman Coefficient in $^{171}$Yb$^+$
论文作者
论文摘要
我们报告了D $ _ {5/2} $ Level的分支分数，超精细恒定和二阶Zeeman系数的测量值，与先前报道的值相比，精确度相比，$^{171} $ yb $^+$，最多提高了两种量子。我们估计S $ _ {1/2} $ $ \ leftrightArrow $ d $ _ {5/2} $过渡为12.5（4）$ e a_0^2 $的电动四极减少矩阵元素。此外，我们确定f $ _ {7/2} $ $ \ leftrightArrow $ $^{1} $ d $ [3/2] _ {3/2} $在760 nm，精确提高$ 25倍的过渡频率。这些测量值为量子体型原子物理学计算提供了基准，并为基于YB $^+$改善量子信息处理器的努力提供了宝贵的数据。
We report measurements of the branching fraction, hyperfine constant, and second-order Zeeman coefficient of the D$_{5/2}$ level in $^{171}$Yb$^+$ with up to two orders-of-magnitude improvement in precision compared to previously reported values. We estimate the electric quadrupole reduced matrix element of the S$_{1/2}$ $\leftrightarrow$ D$_{5/2}$ transition to be 12.5(4) $e a_0^2$. Furthermore, we determine the transition frequency of the F$_{7/2}$ $\leftrightarrow$ $^{1}$D$[3/2]_{3/2}$ at 760 nm with a $\sim$25-fold improvement in precision. These measurements provide benchmarks for quantum-many-body atomic-physics calculations and provide valuable data for efforts to improve quantum information processors based on Yb$^+$.
