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arXiv · 1003.3472

Three-magnon bound states in exactly rung-dimerized spin ladders

P. N. Bibikov
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Abstract

Three magnon bound states in all total spin sectors of general nonintegrable exactly rung-dimerized spin ladder are obtained by Bethe Ansatz. Basing on this result a dispersion law for $m$-magnon ($m>3$) bound states is conjectured. It is suggested that (depending on correlations between coupling constants) a behavior of the gas parameter (density of rung-triplets) on the boundary of the rung-dimerized phase may either be smooth or have a leap.

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P. N. Bibikov. 2010-03-23. Three-magnon bound states in exactly rung-dimerized spin ladders. https://arxiv.org/abs/1003.3472

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