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cond-mat.stat-mech2015★ 2 cited
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…
cond-mat.stat-mech2011★ 1 cited
Spectral densities and diagrams of states of one-dimensional ionic Pauli conductor
I. V. Stasyuk, O. Vorobyov, R. Ya. Stetsiv
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 dimens…