Phase diagram of an exactly solvable t-J ladder model

Abstract

We study a system of one-dimensional t-J models coupled to a ladder system. A special choice of the interaction between neighbouring rungs leads to an integrable model with supersymmetry, which is broken by the presence of rung interactions. We analyze the spectrum of low-lying excitations and ground state phase diagram at zero temperature.

LaTeX, 8 pp. incl. 1 figure

References in corpus (1)

• Exactly solvable quantum spin tubes and ladders

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