AI 中文总结
本研究将锶圆形态束缚于光镊，利用单重态-三重态自旋振荡，首次高精度测得Sr⁺ 5s₁/₂的朗德g因子，为量子技术相关研究提供了关键数据。
AI 中文摘要
锶的圆形态是量子技术的有前途平台，它们的寿命比可激光访问的里德伯态长得多，且具有可通过激光操控的光学活性离子芯。本研究利用离子芯的动态极化率，将圆形态束缚在光镊中；测量了n=51圆形态的轨道分量的衰减，观察到由光镊诱导的矢量光移、里德伯电子的自旋-轨道耦合以及离子芯与里德伯电子之间朗德g因子的差异共同产生的单重态-三重态自旋振荡。通过观测两电子自旋动力学，测量了自旋-轨道相互作用，以及Sr⁺ 5s₁/₂离子芯电子的朗德g因子相对于自由电子的修正量δg≈10⁻⁵，首次高精度测得g_{Sr⁺,5s₁/₂}=2.002290(1)。
英文摘要
Circular states of strontium are promising platforms for quantum technologies. They exhibit much longer lifetimes than laser-accessible Rydberg states and possess an optically active ionic core that can be manipulated with laser light. Here we trap circular states in optical tweezers by exploiting the dynamical polarizability of the ionic core. We measure the decay of the orbital component of a n=51 circular state and observe singlet-triplet spin oscillations arising from the interplay of vector light shifts induced by the optical tweezers, spin-orbit coupling associated with the Rydberg electron, and the difference in Landé $g$-factor between the ionic core and the Rydberg electrons. By observing the two electron spin dynamics, we measure the spin-orbit interaction and the correction $δg \sim$ 10^(-5) of the Landé $g$-factor of the Sr$^+$ 5s$_{1/2}$ ionic core electron with respect to that of a free electron. This provides a first high-precision measurement of $g_{\textrm{Sr}^+, 5s_{1/2}}$ = 2.002290(1).
Comments10 pages, 5 figures
