^{2}S_{1/2}→^{2}F_{7/2}电八极过渡的核旋转灭在{173}Yb^{+}中
Jialiang Yu1, Anand Prakash2, Clara Zyskind1
1Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany.
Physical review letters
|January 30, 2026
概括
我们展示了一种新的方法,用于激发-173离子中的关键原子钟过渡,显著减少激光功率需求,并提高量子计算和原子钟的可扩展性.
科学领域:
- 原子,分子和光学物理学
- 量子信息科学 量子信息科学
- 计量学 计量学 计量学
背景情况:
- 在 Yb^{+} 中的 ^{2}S_{1/2}→^{2}F_{7/2} 过渡是一个关键的光学时钟过渡.
- 光学时钟的可扩展性受到ac Stark转移的阻碍.
研究的目的:
- 为了研究 ^{2}S_{1/2}→^{2}F_{7/2} 时钟过渡在 ^{173}Yb^{+} 中,核旋转I=5/2.2.
- 为了减少AC Stark转移以改善时钟可扩展性.
主要方法:
- 在 ^{173}Yb^{+} 离子中对 ^{2}S_{1/2}→^{2}F_{7/2} 过渡的连贯激发.
- 测量高精度状态依赖火及其对过渡寿命的影响.
- 使用三离子库伦水晶,实验展示了ac Stark转移抑制的方法.
主要成果:
- 在{173}Yb^{+}.中观察到核旋转诱导的时钟过渡的火.
- 超精度状态F_{e}=4的推断寿命比{171}Yb^{+}短10倍.
- 实现了大约20倍的AC Stark转换抑制.
结论:
- 缩短的寿命使得相干激发的光学功率更低,减轻了AC Stark转移.
- 对多离子Yb^{+}时钟的可扩展性进行了重大改进.
- 结果为使用 ^{173}Yb^{+} 的多离子光学时钟和量子计算机铺平了道路.
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