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Thermodynamic Bethe Ansatz for the Spin-1/2 Staggered XXZ- Model

V. V. Mkhitaryan·A. G. Sedrakyan
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Abstract

We develop the technique of Thermodynamic Bethe Ansatz to investigate the ground state and the spectrum in the thermodynamic limit of the staggered $XXZ$ models proposed recently as an example of integrable ladder model. This model appeared due to staggered inhomogeneity of the anisotropy parameter $Δ$ and the staggered shift of the spectral parameter. We give the structure of ground states and lowest lying excitations in two different phases which occur at zero temperature.

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V. V. Mkhitaryan, A. G. Sedrakyan. 2003-02-24. Thermodynamic Bethe Ansatz for the Spin-1/2 Staggered XXZ- Model. https://doi.org/10.1016/j.nuclphysb.2003.08.045

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