8 citations · 14 across the 5 of their papers we have counts for
5 papers
Bound states in the phase diagram of the extended Hubbard model
M. Bak
The papaer shows how the known, exact results for the two electron bound states can modify the ground state phase diagram of extended Hubbard model (EHM) for on-site attraction, in…
Mixed phase and bound states in the phase diagram of the extended Hubbard model
M. Bak
The paper examines part of the ground state diagram of the extended Hubbard model, with the on-site attraction U<0 and intersite repulsion W>0 in the presence of charge density wav…
Two s-wave solutions for superconductivity in the extended Hubbard model
M. Bak
The existence of more than one solution for s-wave pairing in the extended Hubbard model is not often realized. This possibility was noted by Friedberg et al. [Phys. Rev B50, 10190…
Non-Ergodicity of the 1D Heisenberg Model
M. Bak, A. Avella, F. Mancini
The relevance of zero-energy functions, coming from zero-energy modes and present in the structure of bosonic Green's functions, is often underestimated. Usually, their values are…
Extended bound states of fermions on 2D square lattice beyond the nn hopping and interactions
Maciej Bak, Roman Micnas
We examine extended bound states in the dilute limit of the extended Hubbard model with next-nearest-neighbour (nnn) hopping and nnn interactions on the two dimensional square latt…