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Showing papers by "Rafael I. Nepomechie published in 2000"


Journal ArticleDOI
TL;DR: The boundary supersymmetric sinh-Gordon model as mentioned in this paper is an integrable quantum field theory in 1+1 dimensions with bulk N=1 supersymmetry, whose bulk and boundary S matrices are not diagonal.

20 citations


Journal ArticleDOI
TL;DR: In this paper, it was shown that the transfer matrix corresponding to the identity matrix K = is known to have Uq (o (3)) symmetry, but with a nonstandard coproduct.
Abstract: Corresponding to the Izergin-Korepin (A 2 (2) ) R matrix, there are three diagonal solutions (`K matrices') of the boundary Yang-Baxter equation. Using these R and K matrices, one can construct transfer matrices for open integrable quantum spin chains. The transfer matrix corresponding to the identity matrix K = is known to have Uq (o (3)) symmetry. We argue here that the transfer matrices corresponding to the other two K matrices also have Uq (o (3)) symmetry, but with a nonstandard coproduct. We briefly explore some of the consequences of this symmetry.

13 citations


Journal ArticleDOI
TL;DR: The boundary supersymmetric sinh-Gordon model as discussed by the authors is an integrable quantum field theory in 1+1 dimensions with bulk N=1 supersymmetry, whose bulk and boundary S matrices are not diagonal.
Abstract: The boundary supersymmetric sinh-Gordon model is an integrable quantum field theory in 1+1 dimensions with bulk N=1 supersymmetry, whose bulk and boundary S matrices are not diagonal. We present an exact solution of this model. In particular, we derive an exact inversion identity and the corresponding thermodynamic Bethe Ansatz equations. We also compute the boundary entropy, and find a rich pattern of boundary roaming trajectories corresponding to c < 3/2 superconformal models.

1 citations