论文标题
使用量子逻辑的高电荷离子的相干激光光谱
Coherent laser spectroscopy of highly charged ions using quantum logic
论文作者
论文摘要
原子系统的精确光谱是我们对基本相互作用和对称性的理解发展的宝贵工具。最近，已经提出了高电荷离子（HCI），用于除标准模型以外的物理测试，并作为高素质原子钟的候选者。但是，这些想法的实施受到了迄今为止达到的零件光谱精度的阻碍。在这里，我们将被困的HCI冷却至报告的温度最低，并在HCI上引入相干激光光谱，精确度具有八个数量级的飞跃。我们使用Quantum-Logic Spectroscoppoy探测了$^{40} $ ar $^{13+} $中禁止的光学转变，并使用量子逻辑光谱验证并测量其激发态寿命和$ G $ -FACTOR。我们的工作最终释放了HCI的潜力，HCI是一种大型的，无处不在的原子类别，用于量子信息处理，新型频率标准和对基本物理的高度敏感测试，例如寻找候选暗物质候选者或违反基本对称性的方法。
Precision spectroscopy of atomic systems is an invaluable tool for the advancement of our understanding of fundamental interactions and symmetries. Recently, highly charged ions (HCI) have been proposed for sensitive tests of physics beyond the Standard Model and as candidates for high-accuracy atomic clocks. However, the implementation of these ideas has been hindered by the parts-per-million level spectroscopic accuracies achieved to date. Here, we cool a trapped HCI to the lowest reported temperatures, and introduce coherent laser spectroscopy on HCI with an eight orders of magnitude leap in precision. We probe the forbidden optical transition in $^{40}$Ar$^{13+}$ at 441 nm using quantum-logic spectroscopy and measure both its excited-state lifetime and $g$-factor. Our work ultimately unlocks the potential of HCI, a large, ubiquitous atomic class, for quantum information processing, novel frequency standards, and highly sensitive tests of fundamental physics, such as searching for dark matter candidates or violations of fundamental symmetries.
