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cond-mat.stat-mech2001
Integrable Impurity Spin Ladder Systems
Arlei Prestes Tonel, Angela Foerster, Xi-Wen Guan +1
Two integrable spin ladder systems with different types of impurities are proposed. The impurities are introduced in such a way that the integrability of the models is not violated…
cond-mat.str-el2001
Integrable generalised spin ladder models based on the SU(1|3) and SU(3|1) algebras
Arlei Prestes Tonel, Angela Foerster, Katrina Hibberd +1
We present two integrable spin ladder models which possess a general free parameter besides the rung coupling J. The models are exactly solvable by means of the Bethe ansatz method…