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

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/229942For 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.7 pagesExactly Solvable and Integrable SystemsIncoherent bound states in an infinite $XXZ$ chain at $Δ=-1/2$text