Share This Author
Stability and ensemble inequivalence in a globally coupled system.
It is found that the stability of each solution varies differently with the temperature, revealing the inequivalence between the two ensembles and suggesting a physical explanation of the quasistationarity observed in recent numerical results.
How skew distributions emerge in evolving systems
A master equation approach gives a unified description of those three types of skew distribution observed in a variety of systems, providing physical derivation of them and disclosing how they are related.
DYNAMIC TRANSITION AND RESONANCE IN COUPLED OSCILLATORS UNDER SYMMETRY-BREAKING FIELDS
We investigate numerically the dynamic properties of a system of globally coupled oscillators driven by periodic symmetry-breaking fields in the presence of noise. The phase distribution of the…
Quantum Phase Transitions in Josephson-Junction Chains
We investigate the quantum phase transition in a one-dimensional chain of ultrasmall superconducting grains, considering both the self- and junction capacitances. At zero temperature, the system is…
On the dynamics of traveling phase-oscillators with positive and negative couplings
We investigate numerically the dynamics of traveling clusters in systems of phase oscillators, some of which possess positive couplings and others negative couplings. The phase distribution, speed of…
Range of shortcuts in the dynamic model of neural networks
We study, via extensive Monte Carlo calculations, the effects of the range of shortcuts in the dynamic model of neural networks. With the increase of the range of shortcuts, the Mattis-state order…
Connectivity effects in the dynamic model of neural networks
We study, via extensive Monte Carlo calculations, the effects of connectivity in the dynamic model of neural networks, to observe that the Mattis-state order parameter increases with the number of…
Collective oscillations, bicluster motion, and dynamical order in a system of globally coupled rotors with repulsive interactions.
It is found that stable bicluster motion emerges at low temperatures, where the initial kinetic energy accounts for less than about 60% of the total energy.
Dynamic model for failures in biological systems
A dynamic model for failures in biological organisms is proposed and studied both analytically and numerically, finding that unlike the case of no healing, the organism in general does not completely break down even in the presence of noise.
Dynamic model of fiber bundles
A realistic continuous-time dynamics for fiber bundles is introduced and studied both analytically and numerically. The equation of motion reproduces known stationary-state results in the…