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cond-mat1993★ 273 cited
Matrix-product-groundstates for one-dimensional spin-1 quantum antiferromagnets
A. Klümper, A. Schadschneider, J. Zittartz
We have found the exact groundstate for a large class of antiferromagnetic spin-1 models with nearest-neighbour interactions on a linear chain. All groundstate properties can be ca…
cond-mat1993★ 33 cited
Excitation spectrum and critical exponents of a one-dimensional integrable model of fermions with correlated hopping
R. Z. Bariev, A. Klümper, A. Schadschneider +1
We investigate the excitation spectrum of a model of colour fermions with correlated hopping which can be solved by a nested Bethe ansatz. The gapless excitations of particle-h…