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arXiv quant-ph/0310166quant-ph
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贝尔不等式检测有效纠缠

Bell's inequalities detect efficient entanglement

Antonio Acin, Nicolas Gisin, Lluis Masanes, Valerio Scarani

摘要:

本文综述了Bell不等式在量子信息中的地位,着重介绍了它与量子密钥分发和纠缠提取的联系。我们还证明了,对于所有的窃听攻击使用一个量子比特,和一个家庭的攻击的两个量子比特,作用在一半的最大纠缠态的两个量子比特,违反一个贝尔不等式意味着一个有效的秘密密钥提取的可能性。

英文摘要:

We review the status of Bell's inequalities in quantum information, stressing mainly the links with quantum key distribution and distillation of entanglement. We also prove that for all the eavesdropping attacks using one qubit, and for a family of attacks of two qubits, acting on half of a maximally entangled state of two qubits, the violation of a Bell inequality implies the possibility of an efficient secret-key extraction.

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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