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Correspondence between the<i>XXZ</i>model in roots of unity and the one-dimensional quantum Ising chain with different boundary conditions
We consider the integrable XXZ model with special open boundary conditions that renders its Hamiltonian SU(2)q symmetric, and the one-dimensional quantum Ising model with four different boundary conditions. We show that for each boundary condition the Ising quantum chain is given exactly by the minimal model of integrable lattice theory …