Entanglement transfer from two-mode squeezed vacuum light to spatially separated mechanical oscillators via dissipative optomechanical coupling

In this paper, we propose a scheme to generate an entangled state between two spatially separated movable mirrors by injecting the two-mode squeezed optical reservoir to the dissipative optomechanics, in which the movable mirrors can modulate the linewidth of the cavity modes. When the coupling betw...

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Bibliographic Details
Published in:Science China. Physics, mechanics & astronomy mechanics & astronomy, 2015-05, Vol.58 (5), p.52-59
Main Authors: Yan, Yan, Gu, WenJu, Li, GaoXiang
Format: Article
Language:English
Subjects:
Astronomy
Classical and Continuum Physics
Coupling
Dissipation
Entangled states
Holes
Interference
Mechanical oscillators
Observations and Techniques
Opto-mechanics
Physics
Physics and Astronomy
Reservoirs
光传输
分离
双模压缩真空态
振荡器
散光
机械模式
纠缠态
耦合空间
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Summary:In this paper, we propose a scheme to generate an entangled state between two spatially separated movable mirrors by injecting the two-mode squeezed optical reservoir to the dissipative optomechanics, in which the movable mirrors can modulate the linewidth of the cavity modes. When the coupling between the mirrors and the corresponding cavity modes is weak, the two driven cavity fields can respectively behave as the squeezed-vacuum reservoir for the two movable mirrors by utilizing the effect of completely destructive interference of quantum noise. Thus the mechanical modes are prepared in a two-mode squeezed vacuum state. Moreover, when the coupling between the two mirrors and the cavities modes is strong, the entanglement between the two movable mirrors decreases because photonic excitation can preclude the completely destructive interference of quantum noise, but the movable mirrors are still entangled.
ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-015-5647-x