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arXiv 2007.12610quant-ph
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利用局部滤波在噪声中探测经典关联恢复量子信息

Exploring classical correlations in noise to recover quantum information using local filtering

Daniel E. Jones, Brian T. Kirby, Gabriele Riccardi, Cristian Antonelli, Michael Brodsky

摘要:

一般的量子信道由一个消散元件和一个滤波元件组成,携带一个纠缠光子对的一个量子比特。当我们对另一个量子比特应用局部滤波器时,两个量子比特之间的一些相互量子信息会根据混入信号中的噪声的性质而恢复。我们证明了位翻转和相位翻转噪声信道之间的巨大差异,并进一步提出了一个最大限度地恢复量子信息的方案。

英文摘要:

A general quantum channel consisting of a decohering and a filtering element carries one qubit of an entangled photon pair. As we apply a local filter to the other qubit, some mutual quantum information between the two qubits is restored depending on the properties of the noise mixed into the signal. We demonstrate a drastic difference between channels with bit-flip and phase-flip noise and further suggest a scheme for maximal recovery of the quantum information.

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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