Enhancing photon entanglement in a three-mode optomechanical system via imperfect phonon measurements

doi:10.1088/1572-9494/ac64f4

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	Enhancing photon entanglement in a three-mode optomechanical system via imperfect phonon measurements
	Qiu, Jing ; Chen, Dongni ; Wang, Ying-Dan ; Chesi, Stefano 1
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2022
卷号	74 期号:5 页码:55105
关键词	QUANTUM MOTION MICROWAVE
ISSN号	0253-6102
DOI	10.1088/1572-9494/ac64f4
英文摘要	By considering a 3-mode optomechanical system formed by two cavities interacting with a common mechanical mode, we demonstrate that phonon-counting measurements lead to a significant enhancement of entanglement in the output of the two cavities. This conclusion still holds for an inefficient detector, but the dependence on system parameters changes qualitatively from the ideal limit of perfect projective measurements. We find non-trivial optimal points for the entanglement as functions of detector efficiency, measurement outcome, and optical drive strengths. We characterize both the highest achievable entanglement as well as a 'typical' value, obtained at the most likely measurement outcome. Numerical results are well understood within an approximate analytical approach based on perturbation theory around the ideal detector limit.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27741]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China 4.Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Jing,Chen, Dongni,Wang, Ying-Dan,et al. Enhancing photon entanglement in a three-mode optomechanical system via imperfect phonon measurements[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2022,74(5):55105.
APA	Qiu, Jing,Chen, Dongni,Wang, Ying-Dan,&Chesi, Stefano.(2022).Enhancing photon entanglement in a three-mode optomechanical system via imperfect phonon measurements.COMMUNICATIONS IN THEORETICAL PHYSICS,74(5),55105.
MLA	Qiu, Jing,et al."Enhancing photon entanglement in a three-mode optomechanical system via imperfect phonon measurements".COMMUNICATIONS IN THEORETICAL PHYSICS 74.5(2022):55105.