6533b82dfe1ef96bd1291456

RESEARCH PRODUCT

Enhancement of stability in systems with metastable states

B. SpagnoloG. AugelloA. FiasconaroN. PizzolatoD. ValentiSumiyoshi AbeHans HerrmannPiero QuaratiAndrea RapisardaConstantino Tsallis

subject

Josephson effectPhysicseducation.field_of_studySettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciStochastic volatilityStochastic processPopulationComplex systemStatistical mechanicsNoise Enhanced StabilityStochastic modeling of biological and medical physicsMetastabilityQuantum mechanicsMetastabilityIsing modelStochastic dynamicStatistical physicsMetastability; Noise Enhanced Stability; Stochastic dynamics; Stochastic modeling of biological and medical physicseducation

description

The investigation of noise‐induced phenomena in far from equilibrium systems is one of the approach used to understand the behaviour of physical and biological complex systems. Metastability is a generic feature of many nonlinear systems, and the problem of the lifetime of metastable states involves fundamental aspects of nonequilibrium statistical mechanics. The enhancement of the life‐time of metastable states through the noise enhanced stability effect and the role played by the resonant activation phenomenon will be discussed in models of interdisciplinary physics: (i) Ising model (ii) Josephson junction; (iii) stochastic FitzHugh‐Nagumo model; (iv) a population dynamics model, and (v) a market model with stochastic volatility.

yearjournalcountryeditionlanguage
2007-01-01
10.1063/1.2828729http://hdl.handle.net/10447/7708