A new integrable two parameter model of strongly correlated electrons in one dimension

Details A new integrable two parameter model of strongly correlated electrons in one dimension A new integrable two parameter model of strongly correlated electrons in one dimension

1995-04-27

arxiv.org/abs/cond-mat/9504114v1

Physics

Condensed Matter

8 pages, latex, 2 postscript figures

Scientific paper

10.1209/0295-5075/32/1/015

A new one-dimensional fermion model depending on two independent interaction parameters is formulated and solved exactly by the Bethe ansatz method. The Hamiltonian of the model contains the Hubbard interaction and correlated hopping as well as pair hopping terms. The density-density and pair correlations are calculated which manifest superconducting properties in certain regimes of the phase diagram.

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