Vacuum fluctuations induced entanglement between two mesoscopic systems
Vacuum fluctuations induced entanglement between two mesoscopic systems
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DOI：
10.1088/1367-2630/10/12/123014
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发表时间：
2007-05
影响因子：
3.3
通讯作者：
H. Ng;H. Ng;K. Burnett;K. Burnett
中科院分区：
文献类型：
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作者：
H. Ng;H. Ng;K. Burnett;K. Burnett
我们研究了一对被困在超导谐振器内的分子系综的动力学，通过超导谐振器，它们通过微波场模式强耦合。我们发现，即使分子和腔场最初都是在基态制备的，纠缠也可以通过“真空涨落”产生。这种纠缠是在相对较短的时间内产生的，并且不需要进一步操纵系统。因此，它提供了一个方便的方案来纠缠两个介观系统，并可能是有用的量子信息处理。
We study the dynamics of a pair of molecular ensembles trapped inside a superconducting resonator through which they are strongly coupled via a microwave field mode. We find that entanglement can be generated via ‘vacuum fluctuations’ even when the molecules and cavity field are initially prepared in their ground state. This entanglement is created in a relatively short time and without the need for further manipulation of the system. It therefore provides a convenient scheme to entangle two mesoscopic systems, and may well be useful for quantum information processing.