44 citations · 65 across the 5 of their papers we have counts for
7 papers · 1 filter
Covalent bonding and hybridization effects in the corundum-type transition-metal oxides V2O3 and Ti2O3
V. Eyert, U. Schwingenschloegl, U. Eckern
The electronic structure of the corundum-type transition-metal oxides V2O3 and Ti2O3 is studied by means of the augmented spherical wave method, based on density-functional theory…
Bosonization of dimerized Hubbard chains
C. Mocanu, M. Dzierzawa, P. Schwab +1
The role of Klein factors is investigated for the bosonized Hamiltonian of the dimerized Hubbard model. Contrary to previous approaches we take into account their number changing p…
Finite-Size Bosonization and Self-Consistent Harmonic Approximation
C. Mocanu, M. Dzierzawa, P. Schwab +1
The self-consistent harmonic approximation is extended in order to account for the existence of Klein factors in bosonized Hamiltonians. This is important for the study of finite s…
Fermionic long range correlations realized by particles obeying deformed statistics
Andreas Osterloh, Luigi Amico, Ulrich Eckern
Deformed exchange statistics is realized in terms of electronic operators. This is employed to rewrite Hubbard type lattice models for particles obeying deformed statistics (we ref…
Exact solution of generalized Schulz-Shastry type models
A. Osterloh, L. Amico, U. Eckern
A class of integrable one-dimensional models presented by Shastry and Schulz is consequently extended to the whole class of one-dimensional Hubbard- or XXZ-type models with correla…
Bethe Ansatz solution of a new class of Hubbard-type models
A. Osterloh, L. Amico, U. Eckern
We define one-dimensional particles with generalized exchange statistics. The exact solution of a Hubbard-type Hamiltonian constructed with such particles is achieved using the Coo…