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cond-mat.supr-con2004★ 4 cited
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…
cond-mat.supr-con2004
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…