Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-04-22
Physics
High Energy Physics
High Energy Physics - Theory
Palin latex , 8 pages
Scientific paper
10.1103/PhysRevB.56.6376
We consider the exact solution of a model of correlated electrons based on
the superalgebra $Osp(2|2)$. The corresponding Bethe ansatz equations have an
interesting form. We derive an expression for the ground state energy at half
filling. We also present the eigenvalue of the transfer matrix commuting with
the Hamiltonian.
Martins Marcio J.
Ramos P. B.
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