Stochastic resonance in the driven Ising model on small-world networks

Details Stochastic resonance in the driven Ising model on small-world networks Stochastic resonance in the driven Ising model on small-world networks

2002-05-29

arxiv.org/abs/cond-mat/0205608v1

Phys. Rev. E 66, 011107 (2002)

Physics

Condensed Matter

Disordered Systems and Neural Networks

to be published in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.66.011107

We investigate the stochastic resonance phenomena in the field-driven Ising model on small-world networks. The response of the magnetization to an oscillating magnetic field is examined by means of Monte Carlo dynamic simulations, with the rewiring probability varied. At any finite value of the rewiring probability, the system is found to undergo a dynamic phase transition at a finite temperature, giving rise to double resonance peaks. While the peak in the ferromagnetic phase grows with the rewiring probability, that in the paramagnetic phase tends to reduce, indicating opposite effects of the long-range interactions on the resonance in the two phases.

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