Results 241 to 250 of about 1,518,275 (288)

Minireview of stochastic resonance

Chaos, 1998
We present an introductory overview of the subject of stochastic resonance. As researchers’ interest in the phenomenon has spread from physics to biology, new questions both fundamental and practical have emerged. After reviewing some key aspects of the subject, we describe a promising candidate for exploring the possible beneficial effects of random ...
Kurt Wiesenfeld, Fernan Jaramillo
exaly   +3 more sources

Stochastic Resonance

, 2008
Stochastic resonance has been observed in many forms of systems, and has been hotly debated by scientists for over 30 years. Applications incorporating aspects of stochastic resonance may yet prove revolutionary in fields such as distributed sensor networks, nano-electronics, and biomedical prosthetics.
McDonnell, M., Stocks, N., Pearce, C., Abbott, D.   +3 more
openaire   +3 more sources

Multiplicative stochastic resonance

Physical Review E, 1994
A multiplicative bistable stochastic system perturbed by a periodic forcing term is shown to exhibit stochastic resonance with increasing intensity of the multiplicative noise. Such an effect is related to the phenomenon of stochastic stabilization, which takes place in the unperturbed system.
GAMMAITONI, Luca, MARCHESONI, Fabio, E. MENICHELLASAETTA, SANTUCCI, Sergio   +3 more
openaire   +4 more sources

Aperiodic stochastic resonance

Physical Review E, 1996
Stochastic resonance (SR) is a phenomenon wherein the response of a nonlinear system to a weak periodic input signal is optimized by the presence of a particular level of noise. Recently, we presented a method and theory for characterizing SR-type behavior in excitable systems with aperiodic (i.e., broadband) input signals [Phys. Rev. E 52, R3321(1995)]
, Collins, , Chow, , Capela, , Imhoff
openaire   +2 more sources

Energetics of stochastic resonance

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2011
In this paper, we discuss the motion of a Brownian particle in a double-well potential driven by a periodic force in terms of energies delivered by the periodic and the noise forces and energy dissipated into the viscous environment. It is shown that, while the power delivered by the periodic force to the Brownian particle is controlled by the strength
P. Jung, MARCHESONI, Fabio
openaire   +2 more sources

Analysis of stochastic resonances

Physical Review E, 2003
We investigate the one-dimensional diffusion of a particle in a piecewise linear potential superimposed with a step of a harmonically modulated height. Employing the matching conditions, we solve the corresponding Fokker-Planck equation and we analyze nonlinear features of the particle's mean position as a function of time.
Petr, Chvosta, Peter, Reineker
openaire   +2 more sources

Adaptive stochastic resonance

Proceedings of the IEEE, 1998
This paper shows how adaptive systems can learn to add an optimal amount of noise to some nonlinear feedback systems. This "stochastic resonance" (SR) effect occurs in a wide range of physical and biological systems. The noise energy can enhance the faint periodic signals or faint broadband signals that force the dynamical systems.
Sanya Mitaim, Bart Kosko
openaire   +2 more sources

Theory of stochastic resonance

Physical Review A, 1989
The concept of stochastic resonance has been introduced previously to describe a curious phenomenon in bistable systems subject to both periodic and random forcing: an increase in the input noise can result in an improvement in the output signal-to-noise ratio. In this paper we present a detailed theoretical and numerical study of stochastic resonance,
, McNamara, , Wiesenfeld
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Controlling Stochastic Resonance

Physical Review Letters, 1999
Stochastic 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, LOCHER M, BULSARA A, HANGGI P, NEFF J, WIESENFELD K, DITTO W, INCHIOSA ME   +7 more
openaire   +2 more sources

Quantum stochastic resonance

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
openaire   +2 more sources