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arXiv 1006.0917cond-mat.quant-gas
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单光子计数法测量光镊中原子数分布

Measurement of the atom number distribution in an optical tweezer using single photon counting

A. Fuhrmanek, Y. R. P. Sortais, P. Grangier, A. Browaeys

摘要:

本文提出了一种重建含有几十个冷原子的云的原子数分布的方法。原子首先从磁光阱加载到微观光学偶极阱中,然后在共振光探针中释放,在那里它们经历布朗运动并散射光子。我们计算图像增强器探测到的光子事件的数量。使用我们的检测系统对单个原子的响应作为校准,我们提取了当陷阱装载有多个原子时的原子数分布。原子数分布被发现是兼容的泊松分布。

英文摘要:

We demonstrate in this paper a method to reconstruct the atom number distribution of a cloud containing a few tens of cold atoms. The atoms are first loaded from a magneto-optical trap into a microscopic optical dipole trap and then released in a resonant light probe where they undergo a Brownian motion and scatter photons. We count the number of photon events detected on an image intensifier. Using the response of our detection system to a single atom as a calibration, we extract the atom number distribution when the trap is loaded with more than one atom. The atom number distribution is found to be compatible with a Poisson distribution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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