4 papers · 1 filter
Pattern formation in mixtures of ultracold atoms in optical lattices
M. M. Maska, R. Lemanski, J. K. Freericks +1
Regular pattern formation is ubiquitous in nature; it occurs in biological, physical, and materials science systems. Here we propose a set of experiments with ultracold atoms that…
Charge and magnetic order in the 2D Falicov-Kimball model with Hund coupling at finite temperatures
Romuald Lemanski
We perform a simplified analysis of finite temperature properties of the generalized Falicov-Kimball model with Hund coupling. The model is studied on the square lattice for fixed…
Magnetic properties of correlated electrons
Romuald Lemanski
We analyze a system composed of itinerant electrons and localized spins with on-site interactions representing the Hund's first rule. Properties of the system are studied rigorousl…
Correlated hopping in the 1D Falicov-Kimball model
Zbigniew Gajek, Romuald Lemanski
Both canonical and grand canonical phase diagrams of the one-dimensional Falicov-Kimball model (FKM) with correlated hopping are presented for several values of the model parameter…