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New integrable model of correlated electrons with off-diagonal long-range order from $so(5)$ symmetry

Angela Foerster·Jon Links·Itzhak Roditi
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Abstract

We present a new integrable model for correlated electrons which is based on a $so(5)$ symmetry. By using an $η$-pairing realization we construct eigenstates of the Hamiltonian with off-diagonal long-range order. It is also shown that these states lie in the ground state sector. We exactly solve the model on a one-dimensional lattice by the Bethe ansatz.

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Angela Foerster, Jon Links, Itzhak Roditi. 1998-09-29. New integrable model of correlated electrons with off-diagonal long-range order from $so(5)$ symmetry. https://doi.org/10.1088/0305-4470%2F32%2F41%2F101

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