A New Solution of the Supersymmetric TJ Model by Means of the Quantum Inverse Scattering Method

Abstract

We construct the enveloping fundamental spin model of the t-J hamiltonian using the Quantum Inverse Scattering Method (QISM), and present all three possible Algebraic Bethe Ansätze. Two of the solutions have been previously obtained in the framework of Coordinate Space Bethe Ansatz by Sutherland and by Schlottmann and Lai, whereas the third solution is new. The formulation of the model in terms of the QISM enables us to derive explicit expressions for higher conservation laws.

arXiv comment25 pages, using the jytex macro package, ITP-SB-92-12

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