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arXiv 1209.6530quant-ph
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利用光子法拉第旋转纯化原子纠缠

Atomic entanglement purification using photonic Faraday rotation

Yu-Bo Sheng, Sheng-Yang Zhao, Jiong Liu

摘要:

提出了一种利用光子法拉第旋转实现原子纠缠对纠缠纯化的方案。结果表明,在腔QED中,经过两个单光子的输入-输出过程,可以从低质量的混合纠缠原子态得到高质量的纠缠原子态。与其他的电子探针不同,这两对混合态不需要直接保持完整。由于法拉第旋转作用于低Q腔,这种EPP在量子通信和计算中都是有用的。

英文摘要:

We describe an entanglement purification protocol (EPP) for atomic entangled pair using photonic Faraday rotation. It is shown that after the two single photons input-output process in cavity QED, the high quality entangled atomic state can be obtained from the low quality mixed entangled atomic states. Different from other EPPs, the two pairs of mixed states do not need to intact directly. As the photonic Faraday rotation works on the low-Q cavities, this EPP is useful in both quantum communication and computation.

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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