Phase-sensitive nonclassical properties in quantum metrology with a displaced squeezed vacuum state
文献类型：期刊论文
| 作者 | Tao, Zhiwei1,2; Ren, Yichong2; Abdukirim, Azezigul2; Liu, Shiwei1,2; Rao, Ruizhong2
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| 刊名 | JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 38 |
| ISSN号 | 0740-3224 |
| DOI | 10.1364/JOSAB.419752 |
| 通讯作者 | Ren, Yichong(rych@aiofm.ac.cn) |
| 英文摘要 | We predict that the phase-dependent error distribution of locally unentangled quantum states directly affects quantum parameter estimation accuracy. Therefore, we employ the displaced squeezed vacuum (DSV) state as a probe state and investigate an interesting question of the phase-sensitive nonclassical properties in the DSV's metrology. We found that the accuracy limit of parameter estimation is a function of the phase-sensitive parameter phi - theta/2 with a period pi. We show that when phi - theta/2 is an element of [k pi/2, 3k pi/4) (k is an element of Z), we can obtain the accuracy of parameter estimation approaching the ultimate quantum limit through the use of the DSV state with the larger displacement and squeezing strength, whereas when phi - theta/2 is an element of (3k pi/4, k pi] (k is an element of Z), the optimal estimation accuracy can be acquired only when the DSV state degenerates to a squeezed vacuum state. (C) 2021 Optical Society of America |
| WOS关键词 | INFORMATION |
| 资助项目 | State Key Laboratory of Pulsed Power Laser Technology ; Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology[2019ZR07] ; NationalNatural Science Foundation of China[11904369] ; Natural Science Foundation of Anhui Province[1908085QA37] |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000645934500029 |
| 出版者 | OPTICAL SOC AMER |
| 资助机构 | State Key Laboratory of Pulsed Power Laser Technology ; Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology ; NationalNatural Science Foundation of China ; Natural Science Foundation of Anhui Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122200]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ren, Yichong |
| 作者单位 | 1.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Zhiwei,Ren, Yichong,Abdukirim, Azezigul,et al. Phase-sensitive nonclassical properties in quantum metrology with a displaced squeezed vacuum state[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS,2021,38. |
| APA | Tao, Zhiwei,Ren, Yichong,Abdukirim, Azezigul,Liu, Shiwei,&Rao, Ruizhong.(2021).Phase-sensitive nonclassical properties in quantum metrology with a displaced squeezed vacuum state.JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS,38. |
| MLA | Tao, Zhiwei,et al."Phase-sensitive nonclassical properties in quantum metrology with a displaced squeezed vacuum state".JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 38(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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