论文标题
基于基于16类的高度充电离子的高准确光学时钟
High-accuracy optical clocks based on group 16-like highly charged ions
论文作者
论文摘要
我们确定了16类高电荷离子中的激光访问过渡是高准确光学时钟的候选者，包括S-，SE-和TE样系统。对于这类离子，地面$^{3} p_ {j} $良好的结构歧管表现出不规则的（$ j $中的非单调）能量订购，以实现足够大的电离学度。我们考虑$ |^3p_2 \ rangle \ longleftrightArrow |^3p_0 \ rangle $（地面至先激发状态）电动四极杆过渡，对几种原子属性进行相对论的多体计算，以用于光学时钟开发。所讨论的所有离子均适合在小型离子源中生产，并将自己带入具有单一充电离子的同情冷却和量子逻辑读数。
We identify laser-accessible transitions in group 16-like highly charged ions as candidates for high-accuracy optical clocks, including S-, Se-, and Te-like systems. For this class of ions, the ground $^{3}P_{J}$ fine structure manifold exhibits irregular (nonmonotonic in $J$) energy ordering for large enough ionization degree. We consider the $|^3P_2\rangle \longleftrightarrow |^3P_0\rangle$ (ground to first-excited state) electric quadrupole transition, performing relativistic many-body calculations of several atomic properties important for optical clock development. All ions discussed are suitable for production in small-scale ion sources and lend themselves to sympathetic cooling and quantum-logic readout with singly charged ions.
