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arXiv quant-ph/0110151quant-ph
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从连续变量到量子比特的纠缠转移

Entanglement transfer from continuous variables to qubits

W. Son, M. S. Kim, Jinhyoung Lee, D. Ahn

摘要:

我们证明了两个量子比特可以通过与纠缠双模连续变量态的局域相互作用而纠缠。两个二能级原子与双模压缩态相互作用的演化过程说明了这一点。将两个模的压缩光场分别注入两个空间分离的腔中,然后将原子送入腔中与腔场发生共振相互作用。我们发现,即使是双模压缩态,在进入腔中时被退相干后,原子也可能发生纠缠。

英文摘要:

We show that two qubits can be entangled by local interactions with an entangled two-mode continuous variable state. This is illustrated by the evolution of two two-level atoms interacting with a two-mode squeezed state. Two modes of the squeezed field are injected respectively into two spatially separate cavities and the atoms are then sent into the cavities to resonantly interact with the cavity field. We find that the atoms may be entangled even by a two-mode squeezed state which has been decohered while penetrating into the cavity.

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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