Studies on ghost-vibrational resonance in a periodically driven anharmonic oscillator

In this study, we investigate the phenomenon of ghost vibrational resonance in single and one-way coupled plasma oscillator systems with multi-frequency driving forces, which has not been previously studied. We identify the origin of ghost-vibrational resonance caused by the high frequency at the mi...

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Bibliographic Details
Published in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2023-05, Vol.96 (5), Article 56
Main Authors: Samikkannu, Rajamani, Ramasamy, Mohanasubha, Kumarasamy, Suresh, Rajagopal, Karthikeyan
Format: Article
Language:English
Subjects:
Amplitudes
Analysis
Anharmonicity
Complex Systems
Condensed Matter Physics
Coupling
Fluid- and Aerodynamics
Frequency analysis
Oscillators
Physics
Physics and Astronomy
Propagation
Regular Article - Statistical and Nonlinear Physics
Resonance
Resonant frequencies
Solid State Physics
Tokamaks
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Summary:In this study, we investigate the phenomenon of ghost vibrational resonance in single and one-way coupled plasma oscillator systems with multi-frequency driving forces, which has not been previously studied. We identify the origin of ghost-vibrational resonance caused by the high frequency at the missing fundamental frequency ω 0 . Our analysis shows undamped signal propagation and enhanced signal amplification in unidirectionally coupled networks of plasma oscillators. Moreover, we observe that amplitude enhancement and undamped propagation occur only when the coupling constant exceeds the critical value. Our results indicate that the plasma model exhibits enhanced signal propagation even in the absence of high-frequency forces. Additionally, we report that the response amplitude Q ( ω 0 ) at the missing fundamental frequency is independent of other parameters in the coupled dynamical system and only depends on the coupling constant. Graphic Abstract
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/s10051-023-00527-w