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arXiv quant-ph/0112065quant-ph
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单光子和双光子干涉互补性的证明

Demonstration of the Complementarity of One- and Two-Photon Interference

A. F. Abouraddy, M. B. Nasr, B. E. A. Saleh, A. V. Sergienko, M. C. Teich

摘要:

利用自发参量下转换产生的光和光子计数增强的CCD相机,在杨氏双缝实验中观察到了二阶(单光子)和四阶(双光子)干涉。相干性和纠缠分别是单光子和双光子干涉的基础。随着有效光源尺寸的增大,相干性减弱,纠缠增强,从而使单光子干涉的可见性降低,而双光子干涉的可见性增加。这是第一次实验证明了空间域中单光子和双光子干涉(相干和纠缠)之间的互补性。

英文摘要:

The visibilities of second-order (single-photon) and fourth-order (two-photon) interference have been observed in a Young's double-slit experiment using light generated by spontaneous parametric down-conversion and a photon-counting intensified CCD camera. Coherence and entanglement underlie one-and two-photon interference, respectively. As the effective source size is increased, coherence is diminished while entanglement is enhanced, so that the visibility of single-photon interference decreases while that of two-photon interference increases. This is the first experimental demonstration of the complementarity between single- and two-photon interference (coherence and entanglement) in the spatial domain.

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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