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arXiv · cond-mat/9907134

Exactly solvable quantum spin tubes and ladders

M. T. Batchelor·M. Maslen
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Abstract

We find families of integrable n-leg spin-1/2 ladders and tubes with general isotropic exchange interactions between spins. These models are equivalent to su(N) spin chains with N=2^n. Arbitrary rung interactions in the spin tubes and ladders induce chemical potentials in the equivalent spin chains. The potentials are n-dependent and differ for the tube and ladder models. The models are solvable by means of nested Bethe Ansatz.

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M. T. Batchelor, M. Maslen. 1999-07-09. Exactly solvable quantum spin tubes and ladders. https://doi.org/10.1088/0305-4470%2F32%2F33%2F102

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