4 papers
Sznajd sociophysics model on a triangular lattice: ferro and antiferromagnetic opinions
Iksoo Chang
The Sznajd sociophysics model is generalized on the triangular lattice with pure antiferromagnetic opinion and also with both ferromagnetic and antiferromagnetic opinions. The slog…
Asymmetries, Correlations and Fat Tails in Percolation Market Model
I. Chang, D. Stauffer, R. B. Pandey
Modifications of the Cont-Bouchaud percolation model for price fluctuations give an asymmetry for time-reversal, an asymmetry between high and low prices, volatility clustering, ef…
Anisotropic Domain Growth of ANNNI Model at Low Temperatures
Mookyung Cheon, Iksoo Chang
We investigate the ordering kinetics for axial next nearest neighbor Ising (ANNNI) model in one and two dimensions by the multi-spin heat bath dynamical simulation. This dynamics e…
High temperature superconductivity from the two-dimensional semiconductors without magnetism
Mahito Kohmoto, Iksoo Chang, Jacques Friedel
We examine the possibility of high temperature superconductivity from two-dimensional semiconductor without antiferromagnetic fluctuations. The weak coupling BCS theory is applied,…