Journal ArticleDOI
Observation of stochastic resonance in a ring laser.
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TLDR
The first observation of stochastic resonance in an optical device, the bidirectional ring laser, is reported and the addition of injected noise can lead to an improved signal-to-noise ratio.Abstract:
We report the first observation of stochastic resonance in an optical device, the bidirectional ring laser. The experiment exploits a new technique to modulate periodically the asymmetry between the two counter-rotating lasing modes. The measurements verify that the addition of injected noise can lead to an improved signal-to-noise ratio (relative to that observed with no externally injected noise).read more
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Journal ArticleDOI
Input-output gains for signal in noise in stochastic resonance
TL;DR: In this paper, a theoretical model for the transmission of a periodic signal added to a noise through a static nonlinearity is considered, and expressions for the gains experienced by the signal, the noise and the signal-to-noise ratio in the input-output nonlinear transmission are derived.
Journal ArticleDOI
Stochastic resonance in a tunnel diode in the presence of white or coloured noise
Rosario N. Mantegna,B. Spagnolo +1 more
TL;DR: In this paper, the authors studied the signal-to-noise ratio, signal and noise output levels in a fast bistable electronic system: a tunnel diode, and observed stochastic resonance when the system is driven by a sum of a small periodic signal and the noise.
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An analysis of noise enhanced information transmission in an array of comparators
TL;DR: In this paper, it was shown that SSR occurs for a number of different signal and noise distributions, and an analysis of the variance of the quantisation error incurred when all thresholds are set equal to the signal mean, for Gaussian and uniform distributions.
Journal ArticleDOI
Overview: The constructive role of noise in fluctuation driven transport and stochastic resonance.
R. Dean Astumian,Frank Moss +1 more
TL;DR: In this focus issue, several articles are collected that capture the flavor of noise and Brownian motion and point the way to new directions for research.
Journal ArticleDOI
Noise-assisted persistence and recovery of memory state in a memristive spiking neuromorphic network
Igor A. Surazhevsky,Vyacheslav A. Demin,A.I. Ilyasov,A.I. Ilyasov,Andrey V. Emelyanov,Andrey V. Emelyanov,K. E. Nikiruy,Vladimir V. Rylkov,S.A. Shchanikov,I. A. Bordanov,S. A. Gerasimova,Davud V. Guseinov,N. V. Malekhonova,D. A. Pavlov,Alexey Belov,Alexey Mikhaylov,Victor B. Kazantsev,Davide Valenti,Bernardo Spagnolo,Bernardo Spagnolo,Mikhail V. Kovalchuk,Mikhail V. Kovalchuk +21 more
TL;DR: This work investigates the constructive role of an external noise signal, in the form of a low-rate Poisson sequence of pulses supplied to all inputs of a spiking neural network, consisting in maintaining for a long time or even recovering a memory trace of the image without its direct renewal (or rewriting).