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Exact trimer ground states on a spin-1 chain

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 نشر من قبل J. Solyom
 تاريخ النشر 1999
  مجال البحث فيزياء
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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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