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

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

1998-09-29

arxiv.org/abs/cond-mat/9809396v1

Physics

Condensed Matter

RevTex, 4 pages

Scientific paper

10.1088/0305-4470/32/41/101

We present a new integrable model for correlated electrons which is based on
a $so(5)$ symmetry. By using an $\eta$-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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