Exactly solvable quantum spin tubes and ladders

Authors
Batchelor, MT Maslen, M
Citation
Mt. Batchelor et M. Maslen, Exactly solvable quantum spin tubes and ladders, J PHYS A, 32(33), 1999, pp. L377-L380
Citations number
6
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL
ISSN journal
03054470 → ACNP
Volume
32
Issue
33
Year of publication
1999
Pages
L377 - L380
Database
ISI
SICI code
0305-4470(19990820)32:33<L377:ESQSTA>2.0.ZU;2-9
Abstract
We find families of integrable n-leg spin-1/2 ladders and tubes with genera l isotropic exchange interactions between spins. These models are equivalen t to su(N) spin chains with N = 2(n). Arbitrary rung interactions in the sp in tubes and ladders induce chemical potentials in the equivalent spin chai ns. The potentials are n-dependent and differ for the tube and ladder model s. The models are solvable by means of nested Bethe ansatze.