Volume 532, Issue 9 2000196
Original Paper

Nonreciprocal Transmission and Nonreciprocal Entanglement in a Spinning Microwave Magnomechanical System

Zhi-Bo Yang

Zhi-Bo Yang

Department of Physics, College of Science, Yanbian University, Yanji, Jilin, 133002 China

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Jin-Song Liu

Jin-Song Liu

Department of Physics, College of Science, Yanbian University, Yanji, Jilin, 133002 China

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Ai-Dong Zhu

Ai-Dong Zhu

Department of Physics, College of Science, Yanbian University, Yanji, Jilin, 133002 China

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Hong-Yu Liu

Corresponding Author

Hong-Yu Liu

Department of Physics, College of Science, Yanbian University, Yanji, Jilin, 133002 China

E-mail: [email protected]; [email protected]

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Rong-Can Yang

Corresponding Author

Rong-Can Yang

Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, and College of Physics and Energy, Fujian Normal University, Fuzhou, 350117 China

Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Xiamen, 361005 China

E-mail: [email protected]; [email protected]

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First published: 21 July 2020
Citations: 37

Abstract

This study presents nonreciprocal transmission and nonreciprocal magnon–phonon entanglement in a spinning microwave magnomechanical system. This system consists of microwave photons, magnon modes, and phonons. These are created by the vibrational mode of a yttrium iron garnet sphere. This investigation reveals that nonreciprocity is caused by the light that is circulating in a resonator that is experiencing a Fizeau shift. This leads to a difference in the effective detuning frequency of the photon for forwarding and backward drives. A super-strong transmission isolation rate (>100 dB) and a strong entanglement isolation rate (≈50 dB) are obtained by applying the experimental parameters. This scheme opens a new route for exploiting a variety of nonreciprocal effects, and it provides the theoretical basis for the design and realization of magnetically controllable isolators and diodes.

Conflict of Interest

The authors declare no conflict of interest.

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