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arXiv quant-ph/0309090quant-ph
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基于粒子统计的最优状态判别

Optimal State Discrimination Using Particle Statistics

S. Bose, A. Ekert, Y. Omar, N. Paunkovic, V. Vedral

摘要:

本文将粒子统计方法应用于量子态的最佳模糊判别问题。要区分的状态被编码在相同粒子的内部自由度中,并且我们使用外部自由度的聚束和反聚束来区分各种内部状态。我们表明,我们可以实现最佳的单镜头歧视概率只使用粒子统计的影响。我们讨论有趣的应用,我们的方法来检测纠缠和纯化混合态。我们的方案可以很容易地实现与当前的技术。

英文摘要:

We present an application of particle statistics to the problem of optimal ambiguous discrimination of quantum states. The states to be discriminated are encoded in the internal degrees of freedom of identical particles, and we use the bunching and antibunching of the external degrees of freedom to discriminate between various internal states. We show that we can achieve the optimal single-shot discrimination probability using only the effects of particle statistics. We discuss interesting applications of our method to detecting entanglement and purifying mixed states. Our scheme can easily be implemented with the current technology.

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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