| Experimental scheme of non-critical squeezed light field detection | |
| Liu Peng1,2; Li Juan1; Xiang Xiao1; Cao Ming-Tao1; Dong Rui-Fang1,2; Liu Tao1,2; Zhang Shou-Gang1,2 | |
| 2022-01-05 | |
| 发表期刊 | ACTA PHYSICA SINICA
 |
| ISSN | 1000-3290 |
| 卷号 | 71期号:1页码:7 |
| 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. |
| 关键词 | non-critical squeezed light spontaneous rotational symmetry breaking |
| DOI | 10.7498/aps.71.20211212 |
| 关键词[WOS] | GENERATION ; STATES |
| 语种 | 英语 |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| WOS记录号 | WOS:000751859800002 |
| 出版者 | CHINESE PHYSICAL SOC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.72.145.45/handle/361003/13923 |
| 专题 | 量子频标研究室 |
| 通讯作者 | Cao Ming-Tao; Dong Rui-Fang |
| 作者单位 | 1.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, 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. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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