Phase-sensitive nonclassical properties in quantum metrology with a displaced squeezed vacuum state

doi:10.1364/JOSAB.419752

HFCAS OpenIR

	Phase-sensitive nonclassical properties in quantum metrology with a displaced squeezed vacuum state
	Tao, Zhiwei 1,2; Ren, Yichong 2; Abdukirim, Azezigul 2; Liu, Shiwei 1,2; Rao, Ruizhong2
	2021-05-01
发表期刊	JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
ISSN	0740-3224
通讯作者	Ren, Yichong(rych@aiofm.ac.cn)
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
DOI	10.1364/JOSAB.419752
关键词[WOS]	INFORMATION
收录类别	SCI
语种	英语
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]
项目资助者	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
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000645934500029
出版者	OPTICAL SOC AMER
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/122201
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
第一作者单位	中科院安徽光学精密机械研究所
通讯作者单位	中科院安徽光学精密机械研究所
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).