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Wang, M; Lu, XY; Wang, YD; You, JQ; Wu, Y; Lu, XY (reprint author), Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China.
Macroscopic quantum entanglement in modulated optomechanics
Source PublicationPHYSICAL REVIEW A
Language英语
AbstractQuantum 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.
2016
Volume94Issue:5Pages:53807
Subject AreaOptics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevA.94.053807
Indexed BySCI
Funding OrganizationNational Key Research and Development Program of China [2016YFA0301200] ; National Key Research and Development Program of China [2016YFA0301200] ; National Key Research and Development Program of China [2016YFA0301200] ; National Key Research and Development Program of China [2016YFA0301200] ; National Science Foundation of China (NSFC) [11374116, 11574104, 11375067, 11574330, 11434011] ; National Science Foundation of China (NSFC) [11374116, 11574104, 11375067, 11574330, 11434011] ; National Science Foundation of China (NSFC) [11374116, 11574104, 11375067, 11574330, 11434011] ; National Science Foundation of China (NSFC) [11374116, 11574104, 11375067, 11574330, 11434011] ; Chinese Youth 1000 Talents Program ; Chinese Youth 1000 Talents Program ; Chinese Youth 1000 Talents Program ; Chinese Youth 1000 Talents Program
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21488
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLu, XY (reprint author), Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China.
Recommended Citation
GB/T 7714
Wang, M,Lu, XY,Wang, YD,et al. Macroscopic quantum entanglement in modulated optomechanics[J]. PHYSICAL REVIEW A,2016,94(5):53807.
APA Wang, M,Lu, XY,Wang, YD,You, JQ,Wu, Y,&Lu, XY .(2016).Macroscopic quantum entanglement in modulated optomechanics.PHYSICAL REVIEW A,94(5),53807.
MLA Wang, M,et al."Macroscopic quantum entanglement in modulated optomechanics".PHYSICAL REVIEW A 94.5(2016):53807.
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