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arXiv physics/0506061physics.atom-phcond-mat.otherquant-ph
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线性离子阱中轴向振动模的同时冷却

Simultaneous cooling of axial vibrational modes in a linear ion-trap

Christof Wunderlich, Giovanna Morigi, Dirk Reiss

摘要:

为了将捕获的离子的集合用于其中振动态的良好定义的制备是必要的实验,所有振动模式必须被冷却以确保离子的量子态的精确和可重复的操纵。提出了一种同时冷却所有轴向振动模边带的方法。通过施加磁场梯度,修改每个离子的吸收光谱,使得不同振动模式的边带共振重合。然后用单色电磁辐射在光学或微波范围内照射离子串,用于边带激发。这种冷却方案进行了详细的数值研究。它的应用初始化离子串量子信息处理进行了广泛的讨论。

英文摘要:

In order to use a collection of trapped ions for experiments where a well defined preparation of vibrational states is necessary, all vibrational modes have to be cooled to ensure precise and repeatable manipulation of the ions' quantum states. A method for simultaneous sideband cooling of all axial vibrational modes is proposed. By application of a magnetic field gradient the absorption spectrum of each ion is modified such that sideband resonances of different vibrational modes coincide. The ion string is then irradiated with monochromatic electromagnetic radiation, in the optical or microwave regime, for sideband excitation. This cooling scheme is investigated in detailed numerical studies. Its application for initializing ion strings for quantum information processing is extensively discussed.

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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