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Robust entanglement between a movable mirror and a cavity field system with an optical parametric amplifier

  • Xianwu MiEmail author
  • Jiangxiang Bai
  • Song Ke-hui
Regular Article

Abstract

Robust entanglement created between an optical cavity field mode and a macroscopic vibrating mirror with an optical parametric amplifier is shown. Increasing the gain of the optical parametric amplifier makes the line of the logarithmic negativity E N move to the range of the larger detuning and higher temperature. Such optomechanical entanglement can be generated even at room temperature with current experimental parameters. Compared with other proposals, we have considered the one-to-one correspondence between the detuning and the input power, which is reasonable with the fact that the mean shift of the cavity frequency is determined by the radiation pressure which is related to the input power. Such consideration may be valuable to current experiments.

Keywords

Quantum Optics 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Physics and Information EngineeringHuaihua UniversityHuaihuaP.R. China
  2. 2.College of Physical Science and Mechanical Engineering, Jishou UniversityJishouP.R. China

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