Stochastic Resonance in a Dipole

Details Stochastic Resonance in a Dipole Stochastic Resonance in a Dipole

1996-09-08

arxiv.org/abs/cond-mat/9609078v1

Physics

Condensed Matter

4 pages, RevTex, 6 PostScript figures available upon request; to appear in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.54.6929

We show that the dipole, a system usually proposed to model relaxation phenomena, exhibits a maximum in the signal-to-noise ratio at a non-zero noise level, thus indicating the appearance of stochastic resonance. The phenomenon occurs in two different situations, i.e. when the minimum of the potential of the dipole remains fixed in time and when it switches periodically between two equilibrium points. We have also found that the signal-to-noise ratio has a maximum for a certain value of the amplitude of the oscillating field.

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