4 papers
Ground states of the generalized Falicov-Kimball model in one and two dimensions
Pavol Farkasovsky, Hana Cencarikova
A combination of small-cluster exact-diagonalization calculations and a well-controlled approximative method is used to study the ground-state phase diagram of the spin-one-half Fa…
Ground-states of the three-dimensional Falicov-Kimball model
Pavol Farkasovsky, Hana Cencarikova, Natalia Tomasovicova
The systematic study of ground-state properties of the three-dimensional Falicov-Kimball model is performed by a well-controlled numerical method. The results obtained are used to…
Phase transitions induced by correlated hopping in the Falicov-Kimball model
Hana Cencarikova, Pavol Farkasovsky
The extrapolation of finite-cluster calculations is used to examine properties of the one-dimensional Falicov-Kimball model with correla It is shown that the correlated hopping str…
Exact results of the one-dimensional tranverse Ising model in an external longitudinal magnetic field
Jozef Strecka, Hana Cencarikova, Michal Jascur
Magnetic properties of the 1D mixed spin-1/2 and spin-S (S >1/2) transverse Ising model in the presence of an external longitudinal magnetic field are calculated exactly by the use…