论文标题
跨光学晶格时钟的3P0时钟状态的二次Zeeman移位系数的理论计算
Theoretical Calculation of the Quadratic Zeeman Shift Coefficient of the 3P0 clock state for Strontium Optical Lattice Clock
论文作者
论文摘要
在理论和实验中，确定了3P0时钟状态的二次Zeeman移位系数。从理论上讲，我们得出了在弱磁场近似中为88SR和87SR的3P0时钟状态的二次Zeeman偏移的表达。通过使用多配置的狄拉克 - 摩托克式理论，计算了二次齐曼移位系数。为了确定计算的结果，在我们的87SR光学晶格时钟中测量了二次Zeeman偏移系数，F = 9/2，MF =+/ - 9/2时钟状态。计算的结果C2 = -23.38（5）MHz/T2，用于88SR和3P0，F = 9/2，MF =+/ - 9/2时钟状态87SR的时钟状态与其他实验和理论值，尤其是最近最准确的测量值。由于1S0，f = 9/2，MF =+/ - 5/2-3p0，f = 9/2，MF =+/ - 3/2转变已用作对磁场噪声较小敏感的另一个时钟过渡，我们还计算了其他磁性状态的Quadratic zeeman shift shift系数。
The quadratic Zeeman shift coefficient of 3P0 clock state for strontium is determined in theory and experiment. In theory, we derived the expression of the quadratic Zeeman shift of 3P0 clock state for 88Sr and 87Sr in the weak-magnetic-field approximation. By using the multi-configuration Dirac-Hartree-Fock theory, the quadratic Zeeman shift coefficients were calculated. To determine the calculated results, the quadratic Zeeman shift coefficient of 3P0,F=9/2,MF=+/-9/2 clock state was measured in our 87Sr optical lattice clock. The calculated results C2=-23.38(5) MHz/T2 for 88Sr and the 3P0,F=9/2,MF=+/-9/2 clock state for 87Sr agree well with the other experimental and theoretical values, especially the most accurate measurement recently. As the 1S0,F=9/2,MF=+/-5/2-3P0,F=9/2,MF=+/-3/2 transitions have been used as another clock transition for less sensitive to the magnetic field noise, we also calculated the quadratic Zeeman shift coefficients for the other magnetic states.
