Dynamical properties of Potts model with invisible states

Abstract

We study dynamic behavior of Potts model with invisible states near the first-order phase transition temperature. We focus on melting process starting from the perfect ordered state. This model is regarded as a standard model to analyze nature of phase transition. We can control the energy barrier between the ordered state and paramagnetic state without changing the symmetry which breaks at the transition point. We calculate time-dependency of the order parameter, density of invisible state, and internal energy. They show two-step relaxation behavior. We also consider the relation between the characteristic melting time and characteristic scale of the energy barrier by changing the number of invisible states. We find that characteristic melting time increases as the energy barrier enlarges in this model. Thus, this model is regarded as a fundamental model to analyze dynamic behavior near the first-order phase transition point.

6 pages, 3 figures

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• Potts model with invisible states on a scale-free network
• Phase transitions triggered by dumbbell equipotential hypersurfaces
• Interlayer-Interaction Dependence of Latent Heat in the Heisenberg Model on a Stacked Triangular Lattice with Competing Interactions
• Hybrid Quantum Annealing for Clustering Problems