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arXiv 1209.6550physics.atom-phquant-ph
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热汽泡中里德伯原子相干现象的电学读出

Electrical read out for coherent phenomena involving Rydberg atoms in thermal vapor cells

D. Barredo, H. Kübler, R. Daschner, R. Löw, T. Pfau

摘要:

我们提出了一种非常灵敏和可扩展的方法来测量铷原子的热蒸气室中的高激发里德堡态的布居。我们在一个5毫米的电接触池中检测里德伯电离电流。测得的电流被发现是在良好的协议与理论的里德伯人口的基础上的主方程的三个层次的问题,包括电离通道和在相应的温度下的全多普勒分布。电流检测的信噪比明显优于纯光学技术。

英文摘要:

We present a very sensitive and scalable method to measure the population of highly excited Rydberg states in a thermal vapor cell of rubidium atoms. We detect the Rydberg ionization current in a 5 mm electrically contacted cell. The measured current is found to be in excellent agreement with a theory for the Rydberg population based on a master equation for the three level problem including an ionization channel and the full Doppler distributions at the corresponding temperatures. The signal-to-noise ratio of the current detection is substantially better than purely optical techniques.

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