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arXiv 0906.4388quant-ph
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利用相位调整放大的自发发射研究非经典光子流

Non-classical photon streams using rephased amplified spontaneous emission

Patrick M. Ledingham, William R. Naylor, Jevon J. Longdell, Sarah E. Beavan, Matthew J. Sellars

摘要:

我们提出了一个完全量子力学处理的光学rephased光子回波。这些回波由于放大的自发发射而表现出噪声,然而该噪声可以被看作是原子与输出光之间的纠缠的结果。利用重定相脉冲,可以得到放大的自发发射的“回波”,导致在时间上分离的点处具有非经典相关性的光,这在构建宽带宽量子中继器的背景下是感兴趣的。基于同样的思想,我们还提出了一个宽带版本的DLCZ协议。

英文摘要:

We present a fully quantum mechanical treatment of optically rephased photon echoes. These echoes exhibit noise due to amplified spontaneous emission, however this noise can be seen as a consequence of the entanglement between the atoms and the output light. With a rephasing pulse one can get an "echo" of the amplified spontaneous emission, leading to light with nonclassical correlations at points separated in time, which is of interest in the context of building wide bandwidth quantum repeaters. We also suggest a wideband version of DLCZ protocol based on the same ideas.

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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