The Supersymmetric t - J model with quantum group invariance

Foerster, Angela; Karowski, Michael

doi:10.1016/0550-3213(93)90377-2

The Supersymmetric t - J model with quantum group invariance

Apr, 1993

24 pages

Published in:

Nucl.Phys.B 408 (1993) 512-534

DOI:

10.1016/0550-3213(93)90377-2

Report number:

SFB-288-62

View in:

AMS MathSciNet

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Abstract: (Elsevier)

An integrable quantum group deformation of the supersymmetric t − J model is introduced. Open-boundary conditions lead to an spl q (2, 1) invariant hamiltonian. A general procedure to obtain such invariant models is proposed. To solve the model a generalized nested algebraic Bethe ansatz is constructed and the Bethe ansatz equations are obtained. The quantum supergroup structure of the model is investigated.

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