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arXiv quant-ph/0203038quant-ph
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量子非局域性及其在混合纠缠态量子信息处理中的应用

Quantum nonlocality and applications in quantum-information processing of hybrid entangled states

Zeng-Bing Chen, Guang Hou, Yong-De Zhang

摘要:

产生的混合纠缠态,例如,在被俘获离子或原子-腔系统中,具有恰好一个Ebit纠缠,但不是最大纠缠。我们证明了这一点,表明他们违反,但在一般情况下不最大限度地违反,贝尔的不平等,由于克劳泽,霍恩,Shimony和霍尔特。这些状态是有趣的,因为它们表现出两个不同自由度之间的纠缠(一个是离散的,另一个是连续的)。然后我们证明了这些纠缠态在量子信息处理中是一种有价值的资源,包括量子隐形传态、纠缠交换和利用“奇偶校验量子比特”的量子计算。我们的工作建立了一个有趣的联系之间的量子信息协议的离散和连续变量。

英文摘要:

The hybrid entangled states generated, e.g., in a trapped-ion or atom-cavity system, have exactly one ebit of entanglement, but are not maximally entangled. We demonstrate this by showing that they violate, but in general do not maximally violate, Bell's inequality due to Clauser, Horne, Shimony and Holt. These states are interesting in that they exhibit the entanglement between two distinct degrees of freedom (one is discrete and another is continuous). We then demonstrate these entangled states as a valuable resource in quantum information processing including quantum teleportation, entanglement swapping and quantum computation with "parity qubits". Our work establishes an interesting link between quantum information protocols of discrete and continuous variables.

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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