碱金属中塞曼不敏感时钟跃迁的“魔术”光阱理论
Theory of "magic" optical traps for Zeeman-insensitive clock transitions in alkalis
摘要：
用冷原子进行精确测量和量子信息处理可能会受益于用特别设计的“魔法”光场捕获原子。在魔阱条件下，相关的原子性质仍然不受阱场的强扰动的影响。在这里，我们开发了一个理论分析最近观察到的魔术捕获特别有价值的塞曼不敏感的时钟跃迁碱金属原子。其机理是在圆偏振激光场中施加“魔”偏置B场。我们绘制出这些B场作为所有常用碱的捕获激光波长的函数。
英文摘要：
Precision measurements and quantum information processing with cold atoms may benefit from trapping atoms with specially engineered, "magic" optical fields. At the magic trapping conditions, the relevant atomic properties remain immune to strong perturbations by the trapping fields. Here we develop a theoretical analysis of a recently observed magic trapping for especially valuable Zeeman-insensitive clock transitions in alkali-metal atoms. The involved mechanism relies on applying "magic" bias B-field along circularly polarized trapping laser field. We map out these B-fields as a function of trapping laser wavelength for all commonly-used alkalis.
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