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Critical Behaviour of integrable mixed spins chains

S. R. Aladim·M. J. Martins
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Abstract

We construct a mixed spin 1/2 and $S$ integrable model and investigate its finite size properties. For a certain conformal invariant mixed spin system the central charge can be decomposed in terms of the conformal anomaly of two single integrable models of spin 1/2 and spin $(S-1/2)$. We also compute the ground state energy and the sound velocity in the thermodynamic limit.

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S. R. Aladim, M. J. Martins. 1997-04-08. Critical Behaviour of integrable mixed spins chains. https://doi.org/10.1088/0305-4470%2F26%2F12%2F009

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