70 citations · 372 across the 13 of their papers we have counts for
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Two-hole problem in the t-J model: A canonical transformation approach
V. I. Belinicher, A. L. Chernyshev, V. A. Shubin
The t-J model in the spinless-fermion representation is studied. An effective Hamiltonian for the quasiparticles is derived using canonical transformation approach. It is shown tha…
Single hole dispersion relation for the real CuO plane
V. I. Belinicher, A. L. Chernyshev, V. A. Shubin
Dispersion relation for the CuO hole is calculated basing on the {\it generalized} -- model, recently derived from the three-band one. Numerical ranges for al…
Hole-hole superconducting pairing in the t-J model induced by spin-wave exchange
V. I. Belinicher, A. L. Chernyshev, A. V. Dotsenko +1
We study numerically the hole pairing induced by spin-wave exchange. The contact hole-hole interaction is taken into account as well. It is assumed that antiferromagnetic order is…
Consistent low-energy reduction of the three-band model for copper oxides with O-O hopping to the effective t-J model
V. I. Belinicher, A. L. Chernyshev
A full three-band model for the CuO plane with inclusion of all essential interactions - Cu-O and O-O hopping, repulsion at the copper and oxygen and between them - is consid…
The representations of the Hubbard algebra in terms of spin-fermion operators and motion of a hole in an antiferromagnetic state
V. I. Belinicher, A. L. Chernyshev
The representation of the Hubbard operators in terms of the spin operators and the fermion operator with spin is proposed. In the low-energy limit this…
Low-energy limit of the three-band model for electrons in a CuO plane
V. I. Belinicher, A. L. Chernyshev
The three-band model with the O-O direct hopping near to unit filling is considered. We present the general procedure of reduction of this model to the low-energy limit. At unit fi…
Reduction of three-band model for copper oxides to single-band generalized t~-~J model
V. I. Belinicher, A. L. Chernyshev
A three-band model for copper oxides in the region of parameters where the second hole on the copper has energy close to the first hole on the oxygen is considered. The exact solut…
The Quartet State of the Two-Dimensional Heisenberg Model with Spin 1/2 on a Square Lattice
V. I. Belinicher, L. V. Popovich
The low-energy properties of the two-dimensional Heisenberg model with spin- on a square lattice are investigated on the basis of the local dimer order. The lattice is…