Potential energy of a single-junction interferometer as a function of the normalized magnetic flux for ; the parameter . The inset shows the same for .
Stochastic resonance: gain of the magnetic field in the interferometer as a function of the noise level with a frequency band bounded above by the cutoff frequency [Hz]: 128 (1), 512 (2), 2048 (3), 4096 (4) for , .
Gain of the magnetic flux in the interferometer as a function of the amplitude of the high-frequency field for different values of the thermal noise : 0 (1), 0.025 (2), 0.05 (3), 0.075 (4) for , , , , .
Maximum parametric gain of the interferometer as a function of the ratio of the pump frequency to the information signal frequency at , .
Fourier amplitude spectrum of the output signal under the joint influence of noise and a high-frequency pump signal. The spectrum is calculated at the point of maximum stochastic-parametric amplification at a fixed noise level, for , , , , , .
Frequency dependence of the stochastic-parametric gain of the magnetic flux in an interferometer for different values of the ratio of the noise and high-frequency pump: (1), (2), (3), (4), for , . Each curve is calculated at a fixed noise level.
Dependence of the amplitude of the fundamental harmonic of the high-frequency amplified signal on the amplitude of the input low-frequency information signal (transfer characteristics of the interferometer) for different shapes of the high-frequency pump signal: meander (1), thermal noise (2), sine (3) for , , .
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