Stochastic Resonance in a Single-Ion Nonlinear Mechanical Oscillator
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Abstract
Stochastic resonance is a counterintuitive phenomenon amplifying the weak periodic signal by application of external noise. We demonstrate the enhancement of a weak periodic signal by stochastic resonance in a trapped-ion oscillator when the oscillator is excited to the nonlinear regime and subject to an appropriate noise. Under the full control of the radio-frequency drive voltage, this amplification originates from the nonlinearity due to asymmetry of the trapping potential, which can be described by a forced Duffing oscillator model. Our scheme and results provide an interesting possibility to make use of controllable nonlinearity in the trapped ion, and pave the way toward a practical atomic sensor for sensitively detecting weak periodic signals from real noisy environment.
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Tai-Hao Cui, Ji Li, Quan Yuan, Ya-Qi Wei, Shuang-Qing Dai, Pei-Dong Li, Fei Zhou, Jian-Qi Zhang, Liang Chen, Mang Feng. Stochastic Resonance in a Single-Ion Nonlinear Mechanical Oscillator[J]. Chin. Phys. Lett., 2023, 40(8): 080501. DOI: 10.1088/0256-307X/40/8/080501
Tai-Hao Cui, Ji Li, Quan Yuan, Ya-Qi Wei, Shuang-Qing Dai, Pei-Dong Li, Fei Zhou, Jian-Qi Zhang, Liang Chen, Mang Feng. Stochastic Resonance in a Single-Ion Nonlinear Mechanical Oscillator[J]. Chin. Phys. Lett., 2023, 40(8): 080501. DOI: 10.1088/0256-307X/40/8/080501
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Tai-Hao Cui, Ji Li, Quan Yuan, Ya-Qi Wei, Shuang-Qing Dai, Pei-Dong Li, Fei Zhou, Jian-Qi Zhang, Liang Chen, Mang Feng. Stochastic Resonance in a Single-Ion Nonlinear Mechanical Oscillator[J]. Chin. Phys. Lett., 2023, 40(8): 080501. DOI: 10.1088/0256-307X/40/8/080501
Tai-Hao Cui, Ji Li, Quan Yuan, Ya-Qi Wei, Shuang-Qing Dai, Pei-Dong Li, Fei Zhou, Jian-Qi Zhang, Liang Chen, Mang Feng. Stochastic Resonance in a Single-Ion Nonlinear Mechanical Oscillator[J]. Chin. Phys. Lett., 2023, 40(8): 080501. DOI: 10.1088/0256-307X/40/8/080501
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