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Ground state energy and mass gap of a generalized quantum spin ladder

Batchelor, Murray; Maslen, Mark

Description

We show that a two-leg ladder Hamiltonian introduced recently by Albeverio and Fei can be made to satisfy the Hecke algebra. As a result we have found an equivalent representation of the eigenspectrum in terms of the spin-1/2 antiferromagnetic X X Z chain at Δ = -5/3. The values of thermodynamic quantities such as the ground state energy and mass gap follow from the known X X Z results.

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
URI: http://hdl.handle.net/1885/91095
Source: Journal of Physics A: Mathematical and General
DOI: 10.1088/0305-4470/33/3/301

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