arXivDaily arXiv每日学术速递 周一至周五更新
arXiv quant-ph/0602183quant-ph
收藏

里德伯原子位置和态的同时测量

Simultaneous position and state measurement of Rydberg atoms

C. S. E. van Ditzhuijzen, A. F. Koenderink, L. D. Noordam, H. B. van Linden van den Heuvell

摘要:

提出了一种对冷里德伯原子进行态选择性位置探测的方法。磁光阱中的基态Rb原子被激发到里德伯态,随后被定制的电场脉冲电离。该脉冲选择性地仅电离处于例如54 d状态的原子而不电离处于53 d状态的原子。释放的电子在缓慢地飞向微通道板之后被检测到。从电子的飞行时间可以推知原子的位置。当比较54 d与53 d时,状态选择性为约20:1,并且在300 $μ$ m的范围内,一维位置分辨率的范围为6至40 $μ$ m。这种状态选择性和位置分辨率足以允许观察相干量子激发传输。

英文摘要:

We present a technique for state-selective position detection of cold Rydberg atoms. Ground state Rb atoms in a magneto-optical trap are excited to a Rydberg state and are subsequently ionized with a tailored electric field pulse. This pulse selectively ionizes only atoms in e.g. the 54d state and not in the 53d state. The released electrons are detected after a slow flight towards a micro channel plate. From the time of flight of the electrons the position of the atoms is deduced. The state selectivity is about 20:1 when comparing 54d with 53d and the one-dimensional position resolution ranges from 6 to 40 $μ$m over a range of 300 $μ$m. This state selectivity and position resolution are sufficient to allow for the observation of coherent quantum excitation transport.

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。

↑