6533b7d0fe1ef96bd125b7c8
RESEARCH PRODUCT
Signatures of noise-enhanced stability in metastable state
Bernardo SpagnoloStefano BoccalettiAlessandro Fiasconarosubject
Statistical Mechanics (cond-mat.stat-mech)Physical systemFOS: Physical sciencesNoise (electronics)Stability (probability)Nonlinear systemMetastabilityQuantum mechanicsStatistical physicsTransient (oscillation)noise-enhanced stability Circuit resonance Magnetic resonance vibrational resonanceFirst-hitting-time modelBrownian motionCondensed Matter - Statistical MechanicsMathematicsdescription
The lifetime of a metastable state in the transient dynamics of an overdamped Brownian particle is analyzed, both in terms of the mean first passage time and by means of the mean growth rate coefficient. Both quantities feature non monotonic behaviors as a function of the noise intensity, and are independent signatures of the noise enhanced stability effect. They can therefore be alternatively used to evaluate and estimate the presence of this phenomenon, which characterizes metastability in nonlinear physical systems.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-01-01 |