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Spectrum and Thermodynamics of the one-dimensional supersymmetric t-J model with $1/r^2$ exchange and hopping

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arxiv cond-mat/9312019 v1 pith:OIZONFRK submitted 1993-12-05 cond-mat hep-th

classification cond-mathep-th
keywords spectrumexchangehoppingmodelone-dimensionalsupersymmetricthermodynamicsable
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We derive the spectrum and the thermodynamics of the one-dimensional supersymmetric t-J model with long range hopping and spin exchange using a set of maximal-spin eigenstates. This spectrum confirms the recent conjecture that the asymptotic Bethe-ansatz spectrum is exact. By empirical determining the spinon degeneracies of each state, we are able to explicitly construct the free energy.

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