6533b826fe1ef96bd1283a96

RESEARCH PRODUCT

Experimental Studies of Noise—Induced Phenomena in a Tunnel Diode

Rosario N. MantegnaBernardo Spagnolo

subject

Stochastic partial differential equationLangevin equationPhysicsStochastic differential equationQuantum stochastic calculusDifferential equationStochastic resonanceFokker–Planck equationStatistical physicsNoise (electronics)

description

Noise induced phenomena are investigated in a physical system based on a tunnel diode. The stochastic differential equation describing this physical system is analog to the Langevin equation of an overdamped Brownian particle diffusing in a nonlinear potential. This simple and versatile physical system allows a series of experiments testing and clarifying the role of the noise and of its correlation in the stochastic dynamics of bistable or metastable systems. Experimental investigations of stochastic resonance, resonant activation and noise enhanced stability are discussed.

https://doi.org/10.1007/3-540-45396-2_30