Finite-size corrections of an integrable chain with alternating spins
B. -D. Doerfel, St. Meissner
Abstract
In this paper we calculate the finite-size corrections of an anisotropic integrable spin chain, consisting of spins s=1 and s=1/2. The calculations are done in two regions of the phase diagram with respect to the two couplings c and c. In case of conformal invariance we obtain the final answer for the ground state and its lowest excitations, which generalizes earlier results.
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