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题名: Macroscopic quantum entanglement in modulated optomechanics
作者: Wang, M ;  Lu, XY ;  Wang, YD ;  You, JQ ;  Wu, Y
刊名: PHYSICAL REVIEW A
出版日期: 2016
卷号: 94, 期号:5, 页码:53807
学科分类: Optics; Physics
DOI: http://dx.doi.org/10.1103/PhysRevA.94.053807
通讯作者: Lu, XY (reprint author), Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China.
文章类型: Article
英文摘要: Quantum entanglement in mechanical systems is not only a key signature of macroscopic quantum effects but has wide applications in quantum technologies. Here we propose an effective approach for creating strong steady-state entanglement between two directly coupled mechanical oscillators (or a mechanical oscillator and a microwave resonator) in a modulated optomechanical system. The entanglement is achieved by combining the processes of a cavity cooling and the two-mode parametric interaction, which can surpass the bound on the maximal stationary entanglement from the two-mode parametric interaction. In principle, our proposal allows one to cool the system from an initial thermal state to an entangled state with high purity by a monochromatic driving laser. Also, the obtained entangled state can be used to implement the continuous-variable teleportation with high fidelity. Moreover, our proposal is robust against the thermal fluctuations of the mechanical modes under the condition of strong optical pumping.
类目[WOS]: Optics ;  Physics, Atomic, Molecular & Chemical
关键词[WOS]: MECHANICAL OSCILLATORS ;  CAVITY OPTOMECHANICS ;  COLLOQUIUM ;  VARIABLES
收录类别: SCI
项目资助者: National Key Research and Development Program of China [2016YFA0301200] ;  National Science Foundation of China (NSFC) [11374116, 11574104, 11375067, 11574330, 11434011] ;  Chinese Youth 1000 Talents Program
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21488
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Wang, M,Lu, XY,Wang, YD,et al. Macroscopic quantum entanglement in modulated optomechanics[J]. PHYSICAL REVIEW A,2016,94(5):53807.
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