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An Exactly Solvable Constrained XXZ Chain

F. C. Alcaraz·R. Z. Bariev
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Abstract

A new family of exactly solvable models is introduced. These models are generalizations of the XXZ chain where the distance among spins up ($σ^z$-basis) cannot be smaller or equal to t (t=0,1,2,...). The case t=0 recovers the standard XXZ chain. The coordinate Bethe ansatz is applied and the phase diagram is calculated. Exploring the finite-size consequences of conformal invariance the critical exponents are evaluated exactly at the critical regions of the phase diagram

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F. C. Alcaraz, R. Z. Bariev. 1999-04-02. An Exactly Solvable Constrained XXZ Chain. https://arxiv.org/abs/cond-mat/9904042

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