27 citations · 95 across the 10 of their papers we have counts for
5 papers · 1 filter
Stability and ensemble inequivalence in a globally coupled system
M. Y. Choi, J. Choi
We consider a system of globally coupled rotors, described by a set of Langevin equations, and examine stability of the incoherent phase. The corresponding Fokker-Planck equation,…
Quantum and classical diffusion in small-world networks
Beom Jun Kim, H. Hong, M. Y. Choi
We study numerically quantum diffusion of a particle on small-world networks by integrating the time-dependent Schrödinger equation with a localized initial state. The participatio…
Phase transition in the Ising model on a small-world network with distance-dependent interactions
Daun Jeong, H. Hong, Beom Jun Kim +1
We study the collective behavior of an Ising system on a small-world network with the interaction , where represents the Euclidean distance between two nod…
Frequency resonance in Josephson-junction arrays under strong driving
Jong Soo Lim, M. Y. Choi, Beom Jun Kim
We study resonance behavior of a two-dimensional fully frustrated Josephson-junction array driven by high alternating currents. The signal-to-noise ratio (SNR) is examined as the f…
Optimal Size of a Complex Network
H. Hong, Beom Jun Kim, M. Y. Choi
We investigate the response behavior of an Ising system, driven by an oscillating field, on a small-world network, with particular attention to the effects of the system size. The…