超冷分子：基本常数变化的新探针
Ultracold molecules: new probes on the variation of fundamental constants
摘要：
超冷分子提供了全新的机会，以前所未有的灵敏度探测基本常数的变化。本文总结了精细结构常数和电子质子质量比变化的理论背景和当前的限制，以及基于超冷分子测量变化的建议和实验工作。特别是，我们描述了两种新的光谱方案，对超冷分子，大大提高了灵敏度的基本常数：费什巴赫共振附近的共振散射和光谱上的近躺超冷分子的能级。
英文摘要：
Ultracold molecules offer brand new opportunities to probe the variation of fundamental constants with unprecedented sensitivity. This paper summarizes theoretical background and current constraints on the variation of fine structure constant and electron-to-proton mass ratio, as well as proposals and experimental efforts to measure the variations based on ultracold molecules. In particular, we describe two novel spectroscopic schemes on ultracold molecules which have greatly enhanced sensitivity to fundamental constants: resonant scattering near Feshbach resonances and spectroscopy on close-lying energy levels of ultracold molecules.
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