Stochastic resonance in the two-dimensional q-state clock models

Abstract

We numerically study stochastic resonance in the two-dimensional q-state clock models from q = 2 to 7 under a weak oscillating magnetic field. As in the mean-field case, we observe double resonance peaks, but the detailed response strongly depends on the direction of the field modulation for q >= 5 where the quasiliquid phase emerges. We explain this behavior in terms of free-energy landscapes on the two-dimensional magnetization plane.

References in corpus (4)

• Non-Kosterlitz-Thouless transitions for the $q$-state clock models
• High-precision determination of universal amplitude ratios for the q=3 Potts model in 2d
• Double stochastic resonance in the mean-field $q$-state clock models
• Double resonance in the infinite-range quantum Ising model

Cited by in corpus (1)

• Anomalous response in the vicinity of spontaneous symmetry breaking