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arXiv quant-ph/0410203quant-ph
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无纠缠的量子非定域性证明

Demonstrating quantum nonlocality without entanglement

G. J. Pryde, J. L. O'Brien, A. G. White, Stephen D. Bartlett

摘要:

我们的实验证明了优越的歧视分离,非纠缠的两个量子比特相关态使用非本地测量,与本地操作和经典通信的基础上的测量相比。当理论上预测时,这种现象被称为“没有纠缠的量子非定域性”。“我们用一个回报函数来描述非局部或联合测量的性能,我们测量了0.72(2),而局部可实现的最大值为2/3,整体最优值为0.75。

英文摘要:

We experimentally demonstrate the superior discrimination of separated, unentangled two-qubit correlated states using nonlocal measurements, when compared with measurements based on local operations and classical communications. When predicted theoretically, this phenomenon was dubbed "quantum nonlocality without entanglement." We characterize the performance of the nonlocal, or joint, measurement with a payoff function, for which we measure 0.72(2), compared with the maximum locally achievable value of 2/3 and the overall optimal value of 0.75.

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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