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arXiv quant-ph/0401143quant-ph
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原子系综的非对称纠缠

Non-symmetric entanglement of atomic ensembles

A. Kuzmich, T. A. B. Kennedy

摘要:

研究了多原子量子态的纠缠。为了消除非均匀光原子耦合引起的噪声,提出了匹配多原子观测量的概念。作为消除退相干的一种重要形式的一种手段,这个想法应该与原子系综的量子信息处理具有广泛的相关性。以旋转角测量为例说明了一般的方法,并表明,被认为只有弱纠缠的多原子态可以表现出近最大纠缠。

英文摘要:

The entanglement of multi-atom quantum states is considered. In order to cancel noise due to inhomogeneous light atom coupling, the concept of matched multi-atom observables is proposed. As a means to eliminate an important form of decoherence this idea should be of broad relevance for quantum information processing with atomic ensembles. The general approach is illustrated on the example of rotation angle measurement, and it is shown that the multi-atom states that were thought to be only weakly entangled can exhibit near-maximum entanglement.

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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