论文标题
非线性AC Stark Shift的多状态干涉测量
Multi-state interferometric measurement of nonlinear AC Stark shift
论文作者
论文摘要
我们证明了使用多态原子干涉仪使用$^{87} $ rb bose-Einstein冷凝物中Zeeman sublevels之间的二次交流AC Stark偏移的测量。干涉仪可以检测二次移位而不会受到相对较大的状态独立偏移的影响，从而提高了测量精度。我们在总旋转$ f = 2 $状态下测量二次变化，这是因为光线接近d $ _1 $线。二次移位的测量和理论引起的依赖性之间的一致性证实了测量的有效性。我们还使用具有相反二次移位的近谐振双色光脉冲抑制非线性自旋进化的结果。
We demonstrate measurement of quadratic AC Stark shifts between Zeeman sublevels in an $^{87}$Rb Bose--Einstein condensate using a multi-state atomic interferometer. The interferometer can detect a quadratic shift without being affected by relatively large state-independent shifts, thereby improving the measurement precision. We measure quadratic shifts in the total spin $F = 2$ state due to the light being near-resonant to the D$_1$ line. The agreement between the measured and theoretical detuning dependences of the quadratic shifts confirms the validity of the measurement. We also present results on the suppression of nonlinear spin evolution using near-resonant dual-color light pulses with opposite quadratic shifts.
