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题名: Entanglement concentration with strong projective measurement in an optomechanical system
作者: Maimaiti, W;  Li, Z;  Chesi, S;  Wang, YD
刊名: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期: 2015
卷号: 58, 期号:5, 页码:50309
关键词: optomechanics ;  entanglement concentration ;  quantum measurement ;  optomechanical entanglement
学科分类: Physics
DOI: http://dx.doi.org/10.1007/s11433-015-5657-8
通讯作者: Wang, YD (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: In this work, we study an entanglement concentration scheme in a 3-mode optomechanical system. The scheme is based on phonon counting measurements, which can be performed through photon counting of an auxiliary cavity connected to the mechanical resonator. The amount of entanglement between the two cavity output modes is found to increase logarithmically with the number of detected phonons ( photons). Such an entanglement concentration scheme is deterministic since, independently of the number of detected phonons ( photons), the measurement always leads to an increase in output entanglement. Besides numerical simulations, we provide analytical results and physical insight for the improved entanglement and the concentration efficiency.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: MULTIPARTITE ENTANGLEMENT ;  QUANTUM STATES ;  NOISY CHANNELS ;  TELEPORTATION ;  PURIFICATION
收录类别: SCI
项目资助者: Chinese Youth 1000 Talents Program ;  National Natural Science Foundation of China [11434011]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21018
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Maimaiti, W,Li, Z,Chesi, S,et al. Entanglement concentration with strong projective measurement in an optomechanical system[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2015,58(5):50309.
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