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Vibrational resonance in globally coupled bistable systems under the noise background |
| Jiangling Liu(刘江令)1, Chaorun Li(李朝润)1, Hailing Gao(高海玲)2, and Luchun Du(杜鲁春)1,† |
1 Department of Physics, Yunnan University, Kunming 650500, China;
2 Graduate School, Yunnan Normal University, Kunming 650500, China |
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Abstract Effects of system size, coupling strength, and noise on vibrational resonance (VR) of globally coupled bistable systems are investigated. The power spectral amplifications obtained by the three methods all show that the VR exists over a wide range of parameter values. The increase in system size induces and enhances the VR, while the increase in noise intensity suppresses and eventually eliminates the VR. Both the stochastic resonance and the system size resonance can coexist with the VR in different parameter regions. This research has potential applications to the weak signal detection process in stochastic multi-body systems.
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Received: 14 December 2022
Revised: 28 February 2023
Accepted manuscript online: 02 March 2023
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PACS:
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05.40.-a
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(Fluctuation phenomena, random processes, noise, and Brownian motion)
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05.45.-a
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(Nonlinear dynamics and chaos)
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| Fund: Project supported by the Xing Dian Talents Support Project of Yunnan Province (Grant No. YNWR-QNBJ-2018-0040), the Youth Project of Applied Basic Research of Yunnan Science (Grant No. 202201AU070062), and the Yunnan University's Research Innovation Fund for Graduate Students (Grant No. KC-22221171). |
Corresponding Authors:
Luchun Du
E-mail: lcdu@ynu.edu.cn
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Cite this article:
Jiangling Liu(刘江令), Chaorun Li(李朝润), Hailing Gao(高海玲), and Luchun Du(杜鲁春) Vibrational resonance in globally coupled bistable systems under the noise background 2023 Chin. Phys. B 32 070502
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