论文标题
快速原位观察原子Feshbach通过光相关电离
Fast in situ observation of atomic Feshbach resonances by photoassociative ionization
论文作者
论文摘要
我们提出并实验研究了一种观察原子量原子气体中Feshbach共振的方案，并具有高度分辨率的几种纳秒。该方法基于对分子离子的检测，该分子离子是在小原子间距离下从原子对发光的。作为测试系统，我们使用标准的Rubidium气体（87RB），并具有众所周知的磁性feshbach共振。我们的检测方案的快速速度和高灵敏度允许在一毫秒内观察到完整的Feshbach共振，而不会破坏气体。
We propose and experimentally investigate a scheme for observing Feshbach resonances in atomic quantum gases in situ and with a high temporal resolution of several ten nanoseconds. The method is based on the detection of molecular ions, which are optically generated from atom pairs at small interatomic distances. As test system we use a standard rubidium gas (87Rb) with well known magnetically tunable Feshbach resonances. The fast speed and the high sensitivity of our detection scheme allows to observe a complete Feshbach resonance within one millisecond and without destroying the gas.
