Integrable su(2)-invariant spin chains and the Haldane conjecture

M. T. Batchelor; C. M. Yung

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Integrable su(2)-invariant spin chains and the Haldane conjecture

M. T. Batchelor·C. M. Yung

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Abstract

We perform a systematic exact algebraic search for integrable spin-S chains which are isotropic in spin space, i.e. are su(2)-invariant. The families of spin chains found for S < 14 support recent arguments in favour of the complete classification of all such integrable chains. The integrable families of spin chains are discussed in the light of the conjectured spin-dependent properties of the Heisenberg chain.

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M. T. Batchelor, C. M. Yung. 1994-06-17. Integrable su(2)-invariant spin chains and the Haldane conjecture. https://arxiv.org/abs/cond-mat/9406072

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