19 citations · 95 across the 27 of their papers we have counts for
27 papers
Bose-Fermi-Hubbard model in the truncated Hilbert space limit
V. O. Krasnov, I. V. Stasyuk
It is shown that in the Bose-Fermi-Hubbard model which is used for a description of the ultracold atomic boson-fermion mixture in the optical lattice, the r…
Bose-Einstein condensation and/or modulation of "displacements" in the two-state Bose-Hubbard model
I. V. Stasyuk, O. V. Velychko
Instabilities resulting in Bose-Einstein condensation and/or modulation of "displacements" in a system of quantum particles described by a two-state Bose-Hubbard model (with an all…
Influence of electric fields on dielectric properties of GPI ferroelectric
I. R. Zachek, R. R. Levitskii, A. S. Vdovych +1
Using modified microscopic model of GPI by taking into account the piezoelectric coupling with strains in the frames of two-particle cluster approximation, the comp…
Dynamic conductivity of one-dimensional ion conductors. Impedance, Nyquist diagrams
I. V. Stasyuk, R. Ya. Stetsiv
Dynamic conductivity of the one-dimensional ion conductor is investigated at different values of the interaction constant between particles and the modulating field. The considerat…
Phase transitions in Bose-Fermi-Hubbard model in the heavy fermion limit: Hard-core boson approach
I. V. Stasyuk, V. O. Krasnov
Phase transitions are investigated in the Bose-Fermi-Hubbard model in the mean field and hard-core boson approximations for the case of infinitely small fermion transfer and repuls…
Phonon-like excitations in the two-state Bose-Hubbard model
I. V. Stasyuk, O. V. Velychko, O. Vorobyov
The spectrum of phonon-like collective excitations in the system of Bose-atoms in optical lattice (more generally, in the system of quantum particles described by the Bose-Hubbard…