Перегляд за автором "Vorobyov, O."

Сортувати за: Порядок: Результатів:

  • Energy spectrum and phase diagrams of two-sublattice hard-core boson model 
    Stasyuk, I.V.; Vorobyov, O. (Condensed Matter Physics, 2013)
    The energy spectrum, spectral density and phase diagrams have been obtained for two-sublattice hard-core boson model in frames of random phase approximation approach. Reconstruction of boson spectrum at the change of ...
  • Phonon-like excitations in the two-state Bose-Hubbard model 
    Stasyuk, I.V.; Velychko, O.V.; Vorobyov, O. (Condensed Matter Physics, 2015)
    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 model) is investigated. Such excitations ...
  • Spectral densities and diagrams of states of one-dimensional ionic Pauli conductor 
    Stasyuk, I.V.; Vorobyov, O.; Stetsiv, R.Ya. (Condensed Matter Physics, 2011)
    We focus on the features of spectra and diagrams of states obtained via exact diagonalization technique for finite ionic conductor chain in periodic boundary conditions. One dimensional ionic conductor is described with ...
  • Strong short-range interactions in one-dimensional proton conductor 
    Stasyuk, I.V.; Vorobyov, O. (Condensed Matter Physics, 2003)
    The behaviour of one-dimensional proton conductor is investigated on the basis of orientational-tunnelling model. The previously proposed technique which permits the proton interactions to be taken into account in the ...