Signal amplification in NbN superconducting resonators via stochastic resonance |
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Authors: | Baleegh Abdo Eran Segev Oleg Shtempluck Eyal Buks |
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Institution: | aMicroelectronics Research Center, Department of Electrical Engineering, Technion, Haifa 32000, Israel |
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Abstract: | We exploit nonlinearity in NbN superconducting stripline resonators, which originates from local thermal instability, for studying stochastic resonance. As the resonators are driven into instability, small amplitude modulation (AM) signals are amplified with the aid of injected white noise. Simulation results based on the equations of motion for the system yield a good agreement with the experimental data both in the frequency and time domains. |
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Keywords: | Nonlinear resonators Superconducting devices Stochastic processes |
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