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Reducing the mode-mismatch noises in atom–light interactions via optimization of the temporal waveform

查看全文 作　　者：Xiaotian [1]Feng;Zhifei [1]Yu;Bing [2]Chen;Shuying [1]Chen;Yuan [1]Wu;Donghui [1]Fan;Chun-Hua [1]Yuan;[1]L.Q.Chen;[3]Z.Y.Ou;Weiping [4]Zhang 高影响力作者 机构地区：[1]State Key Laboratory of Precision Spectroscopy,Quantum Institute for Light and Atoms,Department of Physics,East China Normal University,Shanghai 200062,China;[2]School of Electronic Science and Applied Physics,Hefei University of Technology,Hefei 230009,China;[3]Department of Physics,Indiana University-Purdue University Indianapolis,Indianapolis,Indiana 46202,USA;[4]School of Physics and Astronomy,and Tsung-Dao Lee Institute,Shanghai Jiao Tong University,Shanghai 200240,China高影响力机构 出　　处：《Photonics Research》索引2020年第8卷第11期,共6页高影响力期刊 基　　金：National Key Research and Development Program of China(2016YFA0302001);National Natural Science Foundation of China(11874152,11974111,11604069,11654005,91536114);Natural Science Foundation of Shanghai(17ZR1442800);Fundamental Research Funds for the Central Universities;Shanghai Municipal Science and Technology Major Project(2019SHZDZX01). 摘　　要：Atom–light interface is at the core of quantum metrology and quantum information science.Associated noises during interaction processes are always inevitable and adverse.In this paper,we perform the stimulated Raman scattering(SRS)in a hot Rb 87 vapor cell and demonstrate the reduction of related noises originated from mode mismatch via optimizing the temporal waveform of the input seed.By using the seed with the optimized mode,the intensity fluctuation of the signal field generated in atom–light interaction is decreased by 4.3 dB.Furthermore,the fluctuation of the intensity difference between the signal and atomic spin wave is reduced by 3.1 dB.Such a temporal mode-cleaning method can be applied to improve the precision of atom interferometry using SRS and should be helpful for quantum information processing based on an atom–light correlated system. 关 键 词：quantum OPTIMIZATION INTERFEROMETRY
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