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Experimental scheme of non-critical squeezed light field detection

文献类型：期刊论文

作者Liu Peng1,2; Li Juan2; Xiang Xiao2; Cao Ming-Tao2; Dong Rui-Fang1,2; Liu Tao1,2; Zhang Shou-Gang1,2
刊名ACTA PHYSICA SINICA
出版日期2022-01-05
卷号71期号:1页码:7
ISSN号1000-3290
关键词non-critical squeezed light spontaneous rotational symmetry breaking
DOI10.7498/aps.71.20211212
英文摘要The squeezed state, as an important quantum resource, has great potential applications in quantum computing, quantum communication and precision measurement. In the noncritically squeezed light theory, the predicted noncritically squeezed light can be generated by breaking the spontaneous rotational symmetry occurring in a degenerate optical parametric oscillator (DOPO) pumped above threshold. The reliability of this kind of squeezing is crucially important, as its quantum performance is robust to the pump power in experiment. However, the detected squeezing degrades rapidly in detection, because the squeezed mode orientation diffuses slowly, resulting in a small mode mismatch during the homodyne detection. In this paper, we propose an experimentally feasible scheme to detect noncritically squeezing reliable by employing the spatial mode swapping technic. Theoretically, the dynamic fluctuation aroused by random mode rotation in the squeezing detection can be compensated for perfectly, and 3 dB squeezing can be achieved robustly even with additional vacuum noise. Our scheme makes an important step forward for the experimental generation of noncritically squeezed light.
WOS关键词GENERATION ; STATES
WOS研究方向Physics
语种英语
出版者CHINESE PHYSICAL SOC
WOS记录号WOS:000751859800002
源URL[http://210.72.145.45/handle/361003/13923]  
专题国家授时中心_量子频标研究室
通讯作者Cao Ming-Tao; Dong Rui-Fang
作者单位1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China
推荐引用方式
GB/T 7714		 Liu Peng,Li Juan,Xiang Xiao,et al. Experimental scheme of non-critical squeezed light field detection[J]. ACTA PHYSICA SINICA,2022,71(1):7.
APA Liu Peng.,Li Juan.,Xiang Xiao.,Cao Ming-Tao.,Dong Rui-Fang.,...&Zhang Shou-Gang.(2022).Experimental scheme of non-critical squeezed light field detection.ACTA PHYSICA SINICA,71(1),7.
MLA Liu Peng,et al."Experimental scheme of non-critical squeezed light field detection".ACTA PHYSICA SINICA 71.1(2022):7.

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来源：国家授时中心

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