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arXiv 0904.4258quant-ph
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时变势场中囚禁离子连续变量压缩和纠缠的产生

Generation of continuous variable squeezing and entanglement of trapped ions in time-varying potentials

Alessio Serafini, Alex Retzker, Martin B. Plenio

摘要:

我们研究了线性阱中离子运动自由度的压缩和纠缠的产生,受限于时变和振荡势,由DC和AC分量组成。我们表明,高度的压缩和纠缠可以通过控制DC或AC捕获组件(或两者),并通过利用瞬态动力学的区域中的离子的运动是不稳定的,没有任何额外的光学控制。此外,我们调查的时间尺度上的潜力应该切换,以使操作是最有效的。

英文摘要:

We investigate the generation of squeezing and entanglement for the motional degrees of freedom of ions in linear traps, confined by time-varying and oscillating potentials, comprised of an DC and an AC component. We show that high degrees of squeezing and entanglement can be obtained by controlling either the DC or the AC trapping component (or both), and by exploiting transient dynamics in regions where the ions' motion is unstable, without any added optical control. Furthermore, we investigate the time-scales over which the potentials should be switched in order for the manipulations to be most effective.

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