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Image for: “Bethe Strings” experimentally demonstrated as many-body quantum states for the first time


The state of a ferromagnetic chain of spins of the cobalt ions in SrCo₂V₂O₈ (a) compared to a spin chain with coupled two- or three-string excitations (b or c).
The state of a ferromagnetic chain of spins of the cobalt ions in SrCo₂V₂O₈ (a) compared to a spin chain with coupled two- or three-string excitations (b or c).

© Universität Augsburg/IfP/EP V

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