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arXiv · 0905.1494

Incoherent bound states in an infinite $XXZ$ chain at $Δ=-1/2$

P. N. Bibikov
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Abstract

For an infinite $XXZ$ chain with $Δ=-1/2$ we have obtained a family of translationary invariant three-magnon states which do not satisfy the string conjecture. All of them have the same energy.

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P. N. Bibikov. 2009-05-10. Incoherent bound states in an infinite $XXZ$ chain at $Δ=-1/2$. https://arxiv.org/abs/0905.1494

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