Quantum-state engineering using enhanced tripartite interactions in atom-photon-phonon hybrid systems

doi:10.1088/1674-1056/ad9a5d

中国物理B ›› 2025, Vol. 34 ›› Issue (2): 24203-024203.doi: 10.1088/1674-1056/ad9a5d

Quantum-state engineering using enhanced tripartite interactions in atom-photon-phonon hybrid systems

Yaowu Guo(郭耀武)^1,2,†, Jiaqiang Zhao(赵加强)¹, Lianzhen Cao(曹连振)¹, Yingde Li(李英德)¹, and Hong-Yan Lu(路红艳)³

1 Department of Physics and Electronic Information, Weifang University, Weifang 261061, China;
2 State Key Laboratory of Surface Physics and Laboratory of Advanced Materials, Department of Physics, Fudan University, Shanghai 200433, China;
3 School of Physics and Physical Engineering, Qufu Normal University, Qufu 273165, China

收稿日期:2024-09-02 修回日期:2024-11-30 接受日期:2024-12-04 出版日期:2025-02-15 发布日期:2025-01-15
通讯作者: Yaowu Guo E-mail:guoyaowu@wfu.edu.cn
基金资助:
This work was supported by the National Natural Science Foundation of China (Grant No. 12074213), the Natural Science Foundation of Shandong Province (Grant No. ZR2021MA078), and the Research Project of the National Key Laboratory (Grant No. KF2020 04).

Quantum-state engineering using enhanced tripartite interactions in atom-photon-phonon hybrid systems

Yaowu Guo(郭耀武)^1,2,†, Jiaqiang Zhao(赵加强)¹, Lianzhen Cao(曹连振)¹, Yingde Li(李英德)¹, and Hong-Yan Lu(路红艳)³

1 Department of Physics and Electronic Information, Weifang University, Weifang 261061, China;
2 State Key Laboratory of Surface Physics and Laboratory of Advanced Materials, Department of Physics, Fudan University, Shanghai 200433, China;
3 School of Physics and Physical Engineering, Qufu Normal University, Qufu 273165, China

Received:2024-09-02 Revised:2024-11-30 Accepted:2024-12-04 Online:2025-02-15 Published:2025-01-15
Contact: Yaowu Guo E-mail:guoyaowu@wfu.edu.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (Grant No. 12074213), the Natural Science Foundation of Shandong Province (Grant No. ZR2021MA078), and the Research Project of the National Key Laboratory (Grant No. KF2020 04).

摘要/Abstract

摘要： We introduce a hybrid cavity optomechanical model capable of generating significant genuine tripartite interactions and entanglement among coherent degrees of freedom. However, realizing and controlling such tripartite interactions and their entanglement pose crucial challenges that remain largely unexplored. In this work, we predict a tripartite coupling mechanism within a hybrid quantum system consisting of a vibrating mechanical oscillator, a two-level atom and a single-frequency cavity field. We specifically propose a mechanism for tripartite and cross-Kerr nonlinear coupling through displacement and squeezing transformations. By adjusting the optical amplitude of the pump light, we can effectively enhance these nonlinear couplings, facilitating the manipulation of entangled and squeezed states. The resulting tripartite genuine entanglement exhibits distinct evolutionary characteristics. Notably, when the pump light amplitude is large, the tripartite entanglement persists for longer time. Additionally, the phonon displays characteristics of both cooling and squeezing. Our study presents a pathway for exploring and exploiting controllable multipartite entanglement, as well as achieving phonon cooling and squeezing with the assistance of a mesoscopic harmonic oscillator. This work underscores the innovative potential of our model in advancing the field of optomechanics and quantum entanglement.

关键词: cross-Kerr nonlinear coupling, tripartite coupling, tripartite entanglement

Abstract: We introduce a hybrid cavity optomechanical model capable of generating significant genuine tripartite interactions and entanglement among coherent degrees of freedom. However, realizing and controlling such tripartite interactions and their entanglement pose crucial challenges that remain largely unexplored. In this work, we predict a tripartite coupling mechanism within a hybrid quantum system consisting of a vibrating mechanical oscillator, a two-level atom and a single-frequency cavity field. We specifically propose a mechanism for tripartite and cross-Kerr nonlinear coupling through displacement and squeezing transformations. By adjusting the optical amplitude of the pump light, we can effectively enhance these nonlinear couplings, facilitating the manipulation of entangled and squeezed states. The resulting tripartite genuine entanglement exhibits distinct evolutionary characteristics. Notably, when the pump light amplitude is large, the tripartite entanglement persists for longer time. Additionally, the phonon displays characteristics of both cooling and squeezing. Our study presents a pathway for exploring and exploiting controllable multipartite entanglement, as well as achieving phonon cooling and squeezing with the assistance of a mesoscopic harmonic oscillator. This work underscores the innovative potential of our model in advancing the field of optomechanics and quantum entanglement.

Key words: cross-Kerr nonlinear coupling, tripartite coupling, tripartite entanglement

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

42.50.Lc

42.50.Pq (Cavity quantum electrodynamics; micromasers) 62.25.Jk (Mechanical modes of vibration)

Yaowu Guo(郭耀武), Jiaqiang Zhao(赵加强), Lianzhen Cao(曹连振), Yingde Li(李英德), and Hong-Yan Lu(路红艳). Quantum-state engineering using enhanced tripartite interactions in atom-photon-phonon hybrid systems[J]. 中国物理B, 2025, 34(2): 24203-024203.

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Quantum-state engineering using enhanced tripartite interactions in atom-photon-phonon hybrid systems

Quantum-state engineering using enhanced tripartite interactions in atom-photon-phonon hybrid systems

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