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arXiv:cond-mat/9510105 · Physical review. B, Condensed matter

Exactly solvable extended Hubbard model

D. F. Wang

Published Jan 15, 1996• 3 citations
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Abstract

In this work, we introduce a long-range version of the extended Hubbard model. The system is defined on a nonuniform lattice. We show that the system is integrable. The ground state, the ground-state energy, and the energy spectrum are also found for the system. Another long-range version of the extended Hubbard model is also introduced on a uniform lattice, and this system is proven to be integrable.

DOI
10.1103/physrevb.53.r1685

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In this work, we introduce a long-range version of the extended Hubbard model. The system is defined on a nonuniform lattice. We show that the system is integrable. The ground state, the ground-state energy, and the energy spectrum are also found for the system. Another long-range version of the extended Hubbard model is also introduced on a uniform lattice, and this system is proven to be integrable.
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