Exact trimer ground states on a spin-1 chain

Details Exact trimer ground states on a spin-1 chain Exact trimer ground states on a spin-1 chain

1999-10-22

arxiv.org/abs/cond-mat/9910356v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1209/epl/i2000-00103-6

We construct a new spin-1 model on a chain. Its ground state is determined
exactly which is three-fold degenerate by breaking translational invariance.
Thus we have trimerization. Excited states cannot be obtained exactly, but we
determine a few low-lying ones by using trial states, among them solitons.

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