Exactly solvable quantum spin tubes and ladders
Statistical Mechanics
2009-10-31 v1
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.
Keywords
Cite
@article{arxiv.cond-mat/9907134,
title = {Exactly solvable quantum spin tubes and ladders},
author = {M. T. Batchelor and M. Maslen},
journal= {arXiv preprint arXiv:cond-mat/9907134},
year = {2009}
}
Comments
6 pages, Latex, 1 eps fig, to appear in J. Phys. A