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
Citations
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Journal ArticleDOI
Quantum escape kinetics over a fluctuating barrier
TL;DR: This work extends the analysis of this phenomenon of resonant activation to quantum domain to show how quantization significantly enhances resonantactivation at low temperature due to tunneling.
Journal ArticleDOI
Stochastic resonance in periodic potentials
Leone Fronzoni,Riccardo Mannella +1 more
TL;DR: In this article, the motion of a particle in a periodic potential plus a bias, driven by a noise and a coherent forcing, is studied for different values of the noise intensity and of the bias.
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Frequency mixing in a bistable system in the presence of noise
TL;DR: In this article, the dynamics of a bistable system resulting from the action of several periodic perturbations and noise is studied and the response of the system at combination harmonics and the changes in the response caused by high-frequency modulation and a constant field that removes the degeneracy in the bistability system are calculated.
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Stochastic resonance in a mono-stable system with multiplicative and additive noise
TL;DR: In this article, the signal-to-noise ratio (SNR) of a biased mono-stable system subject to multiplicative and additive noise is investigated. And the SNR is shown to be a non-monotonic function of the intensities of the additive and multiplicative noise, as well as the parameters of the system.
Journal ArticleDOI
Stochastic resonance in a time polo-delayed asymmetry bistable system driven by multiplicative white noise and additive color noise
TL;DR: In this paper, the effect of additive color noise and additive white noise on the mean first-passage time (MFPT) of a time polo-delayed asymmetric bistable system was investigated.