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arXiv 1608.07941quant-ph
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两束独立光束在非对称分束器上的二阶时间干涉

Second-order temporal interference of two independent light beams at an asymmetrical beam splitter

Jianbin Liu, Jingjing Wang, Zhuo Xu

摘要:

基于费曼路径积分理论中的双光子干涉,讨论了经典光和非经典光在非对称分束器中的二阶时间干涉。二阶干涉图样的可见度由叠加光束的性质、这两个光束的强度之间的比率以及非对称分束器的反射率来确定。为了保证非经典光束的二阶干涉图样的可见度超过经典极限,对非对称分束器必须满足一定的要求。由两个独立的单光子源发射的光子的二阶干涉图案的可见性与强度之间的比率无关。这些结论对非对称分束器在量子光学和量子信息中的研究和应用具有重要意义。

英文摘要:

The second-order temporal interference of classical and nonclassical light at an asymmetrical beam splitter is discussed based on two-photon interference in Feynman's path integral theory. The visibility of the second-order interference pattern is determined by the properties of the superposed light beams, the ratio between the intensities of these two light beams, and the reflectivity of the asymmetrical beam splitter. Some requirements about the asymmetrical beam splitter have to be satisfied in order to ensure that the visibility of the second-order interference pattern of nonclassical light beams exceeds classical limit. The visibility of the second-order interference pattern of photons emitted by two independent single-photon sources is independent of the ratio between the intensities. These conclusions are important for the researches and applications in quantum optics and quantum information when asymmetrical beam splitter is employed.

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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