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Exactly solvable quantum spin tubes and ladders

Batchelor, Murray; Maslen, Mark


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 = 2n. 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 ansatze.

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
Source: Journal of Physics A: Mathematical and General
DOI: 10.1088/0305-4470/32/33/102


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