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Extended Wiener-Khinchin theorem for quantum spectral analysis
发布时间:2018-01-09 浏览:

报告题目: Extended Wiener-Khinchin theorem for quantum spectral analysis

报 告 人: 金锐博教授
           (武汉工程大学理学院 )

报告时间:2018年1月10日星期三上午10:30-11:30
报告地点:激光光谱研究所三层会议室(302室)
报告摘要:

        The classical Wiener-Khinchin theorem (WKT), which can extract spectral information by classical interferometers through Fourier transform, is a fundamental theorem used in many disciplines. However, there is still need for a quantum version of WKT, which could connect correlated biphoton spectral information by quantum interferometers. Here, we extend the classical WKT to its quantum counterpart, i.e., extended WKT (e-WKT), which is based on two-photon quantum interferometry. According to the e-WKT, the difference-frequency distribution of the biphoton wavefunctions can be extracted by applying a Fourier transform on the time domain Hong-Ou-Mandel interference (HOMI) patterns, while the sum-frequency distribution can be extracted by applying a Fourier transform on the time-domain NOON state interference (NOONI) patterns. We also experimentally verified the WKT and e-WKT in a Mach-Zehnder interference (MZI), a HOMI and a NOONI. This theorem can be directly applied to quantum spectroscopy, where the spectral correlation information of biphotons can be obtained from time-domain quantum interferences by Fourier transform. This may open a new pathway for the study of light-matter interaction at the single photon level.

 参考文献:

       Rui-Bo Jin, Ryosuke Shimizu “Extended Wiener-Khinchin theorem for quantum spectral analysis” arXiv: 1709.04837, accepted by Optica.

 报告人简介:

        金锐博,教授,湖北省“楚天学者”计划楚天学子,武汉工程大学“工大学者”特聘教授。2011年于日本东北大学获得博士学位,之后在日本东北大学及日本国立信息与通信研究机构(NICT)从事博士后工作。曾获日本文部省奖学金及NICT“优秀奖”。长期从事量子光学及量子信息的实验研究,主要工作包括PPKTP晶体的纯态单光子源,纠缠光源的制备,独立光子源的Hong-Ou-Mandel干涉,多光子NOON态干涉等。 在Phys. Rev. Appl., Optica, Phys. Rev. A等国内外著名期刊发表文章40余篇, 担任Scientific Reports期刊编委。