Results 271 to 280 of about 32,366 (309)
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Controlling Stochastic Resonance
Physical Review Letters, 1999Stochastic resonance (SR) is a nonlinear noise-mediated cooperative phenomenon wherein the coherent response to a deterministic signal can be enhanced in the presence of an optimal amount of noise. Since its inception in 1981 [1], SR [2] has been demonstrated in diverse systems including sensory neurons, mammalian neuronal tissue, lasers, SQUIDs ...
GAMMAITONI, Luca +7 more
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Stochastic resonance as crisis
Physical Review E, 1994Based on approximate methods of nonlinear oscillations and experimental studies, we show the evidence that stochastic resonance in Duffing's equation can be considered as an example of crisis.
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Stochastic resonance on a circle
Physical Review Letters, 1994We describe a new realization of stochastic resonance, applicable to a broad class of systems, based on an underlying excitable dynamics with deterministic reinjection. A simple but general theory of such ``single-trigger'' systems is compared with analog simulations of the Fitzhugh-Nagumo model, as well as experimental data obtained from stimulated ...
, Wiesenfeld +4 more
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Physical Review Letters, 1994
We demonstrate that stochastic resonance, where an increase in the noise acting on a nonlinear dynamical system increases the signal-to-noise ratio describing the response to periodic driving, can occur in quantum systems as well as classical ones.
, Löfstedt, , Coppersmith
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We demonstrate that stochastic resonance, where an increase in the noise acting on a nonlinear dynamical system increases the signal-to-noise ratio describing the response to periodic driving, can occur in quantum systems as well as classical ones.
, Löfstedt, , Coppersmith
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Remarks on stochastic resonance
Physical Review A, 1989A recent and interesting experimental paper [B. McNamara, K. Wiesenfeld, and R. Roy, Phys. Rev. Lett. 60, 2626 (1988)] has refocused attention on the problem of stochastic resonance by presenting measurements of the singal-to-noise ratio (SNR) of a noise driven, periodically modulated bistable ring laser.
, Debnath, , Zhou, , Moss
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Stochastic resonance in paramagnetic resonance systems
Journal of Statistical Physics, 1993Experimental evidence of the stochastic resonance phenomenon in an electron paramagnetic resonance (EPR) system is reported. The amplitude and phase response of the EPR system operating in bistable conditions are measured for increasing values of the noise intensity.
GAMMAITONI, Luca +3 more
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Stochastic Resonance as aBona FideResonance
Physical Review Letters, 1995Stochastic resonance in a bistable potential is fully characterized as a synchronization effect of the hopping mechanism induced by the external periodic bias. Most notably, synchronization is shown to attain a maximum by increasing the forcing frequency close to the relevant switching rate, thus revealing a bona fide resonant process.
GAMMAITONI, Luca +2 more
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Stochastically Perturbed Resonance
SIAM Journal on Applied Mathematics, 1981We analyze the motion of a periodically forced oscillator whose natural frequency is the superposition of a slowly varying component and a small stochastic perturbation. When the slowly varying component of natural frequency passes through the value corresponding to the forcing, there is resonance.
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STOCHASTIC RESONANCE IN CHUA'S CIRCUIT
International Journal of Bifurcation and Chaos, 1992In this paper, we report numerical observations of the stochastic resonance (SR) phenomenon in a bistable chaotic electronic circuit (namely, Chua’s circuit) driven simultaneously by noise and a sinusoidal signal. It is shown that the noise-induced “chaos-chaos” type intermittency is a physical mechanism of the SR-phenomenon in chaotic systems.
Anishchenko, V. S. +2 more
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A new definition of stochastic resonance
Il Nuovo Cimento D, 1995Stochastic resonance in a bistable potential is characterized as a syncronization effect of the hopping mechanism induced by the external periodic bias. Most notably, syncronization is shown i) to attain a maximum with increasing the forcing frequency close to the relevant switching rate, thus revealing abona fide resonant process; ii) to occur even in
GAMMAITONI, Luca +3 more
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