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arXiv quant-ph/0107087quant-ph
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具有电磁感应透明性的激光冷却:应用于离子或中性原子的俘获样品

Laser cooling with electromagnetically induced transparency: Application to trapped samples of ions or neutral atoms

F. Schmidt-Kaler, J. Eschner, G. Morigi, C. F. Roos, D. Leibfried, A. Mundt, R. Blatt

摘要:

利用量子干涉剪裁的三(或多)能级系统的吸收分布,提出了一种新的基态激光冷却囚禁原子的方法。在冷却速率与常规边带冷却相当的情况下,可以实现较低的最终温度。该方法在实验上实现冷却一个单一的钙$^+$离子到其振动基态。由于可以同时冷却宽频带的振动频率,因此该技术对于冷却较大的离子串将特别有用,从而对于基于捕获离子的量子寄存器的初始化具有重要的实际意义。我们还讨论了它在不同能级方案中的应用以及在大失谐驻波激光场囚禁的中性原子基态冷却中的应用。

英文摘要:

A novel method of ground state laser cooling of trapped atoms utilizes the absorption profile of a three (or multi-) level system which is tailored by a quantum interference. With cooling rates comparable to conventional sideband cooling, lower final temperatures may be achieved. The method was experimentally implemented to cool a single Ca$^+$ ion to its vibrational ground state. Since a broad band of vibrational frequencies can be cooled simultaneously, the technique will be particularly useful for the cooling of larger ion strings, thereby being of great practical importance for initializing a quantum register based on trapped ions. We also discuss its application to different level schemes and for ground state cooling of neutral atoms trapped by a far detuned standing wave laser field.

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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