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Bethe Ansatz solution of a new class of Hubbard-type models

A. Osterloh, L. Amico, U. Eckern

cond-mat.str-elarXiv:cond-mat/9812317

Abstract

We define one-dimensional particles with generalized exchange statistics. The exact solution of a Hubbard-type Hamiltonian constructed with such particles is achieved using the Coordinate Bethe Ansatz. The chosen deformation of the statistics is equivalent to the presence of a magnetic field produced by the particles themselves, which is present also in a ``free gas'' of these particles.

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