Generation of squeezed states of magnons and photons based on the Kerr effect in cavity-magnon hybrid system

doi:10.1088/1674-1056/ae4b2d

中国物理B ›› 2026, Vol. 35 ›› Issue (4): 44210-044210.doi: 10.1088/1674-1056/ae4b2d

Generation of squeezed states of magnons and photons based on the Kerr effect in cavity-magnon hybrid system

Cheng-Hua Bai(白成华)^1,† and Suying Bai(白素英)^2,‡

1 School of Semiconductor and Physics, North University of China, Taiyuan 030051, China;
2 School of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China

收稿日期:2026-01-18 修回日期:2026-02-19 接受日期:2026-02-27 发布日期:2026-04-07
通讯作者: Cheng-Hua Bai, Suying Bai E-mail:chbai2021@foxmail.com;sybai2021@foxmail.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 12204440 and 12204292) and Fundamental Research Program of Shanxi Province, China (Grant No. 202203021212405).

Generation of squeezed states of magnons and photons based on the Kerr effect in cavity-magnon hybrid system

Cheng-Hua Bai(白成华)^1,† and Suying Bai(白素英)^2,‡

1 School of Semiconductor and Physics, North University of China, Taiyuan 030051, China;
2 School of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China

Received:2026-01-18 Revised:2026-02-19 Accepted:2026-02-27 Published:2026-04-07
Contact: Cheng-Hua Bai, Suying Bai E-mail:chbai2021@foxmail.com;sybai2021@foxmail.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 12204440 and 12204292) and Fundamental Research Program of Shanxi Province, China (Grant No. 202203021212405).

摘要/Abstract

摘要： Based on the magnon Kerr effect, we show how to generate quantum squeezed states of magnons and photons in the cavity-magnon hybrid system. We find that the squeezing of magnons can be successfully induced by the magnon nonlinearity and the larger two-magnon effect strength will be beneficial to achieving the stronger squeezing of magnon. Resorting to the beam-splitter interaction between the magnons and photons, we further show that the squeezing of photons can be also effectively achieved. By properly choosing the system parameters, we demonstrate that the desired direction of the generated squeezing both for magnons and photons can be flexibly switched between orthogonal directions. Our scheme provides an alternative manipulation method to explore the quantum phenomena with nonlinear effects and also has significant potential applications in quantum precision measurement.

关键词: quantum squeezing, magnon Kerr effect, cavity-magnon hybrid system

Abstract: Based on the magnon Kerr effect, we show how to generate quantum squeezed states of magnons and photons in the cavity-magnon hybrid system. We find that the squeezing of magnons can be successfully induced by the magnon nonlinearity and the larger two-magnon effect strength will be beneficial to achieving the stronger squeezing of magnon. Resorting to the beam-splitter interaction between the magnons and photons, we further show that the squeezing of photons can be also effectively achieved. By properly choosing the system parameters, we demonstrate that the desired direction of the generated squeezing both for magnons and photons can be flexibly switched between orthogonal directions. Our scheme provides an alternative manipulation method to explore the quantum phenomena with nonlinear effects and also has significant potential applications in quantum precision measurement.

Key words: quantum squeezing, magnon Kerr effect, cavity-magnon hybrid system

中图分类号: (Quantum fluctuations, quantum noise, and quantum jumps)

42.50.Lc

42.50.Dv (Quantum state engineering and measurements) 71.36.+c (Polaritons (including photon-phonon and photon-magnon interactions))

Cheng-Hua Bai(白成华) and Suying Bai(白素英). Generation of squeezed states of magnons and photons based on the Kerr effect in cavity-magnon hybrid system[J]. 中国物理B, 2026, 35(4): 44210-044210.

Cheng-Hua Bai(白成华) and Suying Bai(白素英). Generation of squeezed states of magnons and photons based on the Kerr effect in cavity-magnon hybrid system[J]. Chin. Phys. B, 2026, 35(4): 44210-044210.

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Generation of squeezed states of magnons and photons based on the Kerr effect in cavity-magnon hybrid system

Generation of squeezed states of magnons and photons based on the Kerr effect in cavity-magnon hybrid system

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