27 citations · 58 across the 10 of their papers we have counts for
10 papers
Stability condition of the steady oscillations in aggregation models with shattering process and self-fragmentation
Jean-Yves P Fortin, MooYoung Choi
We consider a system of clusters of various sizes or masses, subject to aggregation and fragmentation by collision with monomers or by self-disintegration. The aggregation rate for…
Effects of Janus Oscillators in the Kuramoto Model with Positive and Negative Couplings
Jungzae Choi, MooYoung Choi, Byung-Gook Yoon
We study the effects of Janus oscillators in a system of phase oscillators in which the coupling constants take both positive and negative values. Janus oscillators may also form a…
Traveling Speed of Clusters in the Kuramoto-Sakaguchi Model
Jungzae Choi, MooYoung Choi, Byung-Gook Yoon
We study a variant of Kuramoto-Sakaguchi model in which oscillators are divided into two groups, each characterized by its coupling constant and phase lag. Specifically, we conside…
Emergent incommensurate correlations in the frustrated ferromagnetic spin-1 chains
Hyeong Jun Lee, MooYoung Choi, Gun Sang Jeon
We study the frustrated ferromagnetic spin-1 chains, where the ferromagnetic nearest-neighbor coupling competes with the antiferromagnetic next-nearest-neighbor coupling. We use th…
Time Evolution of Entropy in a Growth model: Dependence on the Description
Segun Goh, Jungzae Choi, MooYoung Choi +1
Entropy plays a key role in statistical physics of complex systems, which in general exhibit diverse aspects of emergence on different scales. However, it still remains not fully r…
Slope-Reversed Mott Transition in Multiorbital Systems
Aaram J. Kim, MooYoung Choi, Gun Sang Jeon
We examine finite-temperature phase transitions in the two-orbital Hubbard model with different bandwidths by means of the dynamical mean-field theory combined with the continuous-…
On the dynamics of traveling phase-oscillators with positive and negative couplings
J. Choi, M. Y. Choi, B. -G. Yoon
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 dis…
Estimate of the Phase Transition Line in the Infinite-dimensional Hubbard Model
Aaram J. Kim, M. Y. Choi, Gun Sang Jeon
We consider a Mott transition of the Hubbard model in infinite dimensions. The dynamical mean- field theory is employed in combination with a continuous-time quantum Monte Carlo (C…
Autonomous stochastic resonance in fully frustrated Josephson-junction ladders
Gun Sang Jeon, M. Y. Choi
We investigate autonomous stochastic resonance in fully frustrated Josephson-junction ladders, which are driven by uniform constant currents. At zero temperature large currents ind…
Quantum and frustration effects on fluctuations of the inverse compressibility in two-dimensional Coulomb glasses
Minchul Lee, Gun Sang Jeon, M. Y. Choi
We consider interacting electrons in a two-dimensional quantum Coulomb glass and investigate by means of the Hartree-Fock approximation the combined effects of the electron-electro…