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Optomechanical entanglement of a macroscopic oscillator by quantum feedback

E Wu

School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China

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FengZhi Li

School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China

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XueFeng Zhang

School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China

Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China

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, and

YongHong Ma

School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China

E-mail Address: myh_dlut@126.com

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https://doi.org/10.1142/S0219749916500222Cited by:4 (Source: Crossref)

Abstract

We propose a scheme to generate the case of macroscopic entanglement in the optomechanical system, which consist of Fabry–Perot cavity and a mechanical oscillator by applying a homodyne-mediated quantum feedback. We explore the effect of feedback on the entanglement in vacuum and coherent state, respectively. The results show that the introduction of quantum feedback can increase the entanglement effectively between the cavity mode and the oscillator mode.

Keywords:

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