Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1993-12-03
Nucl.Phys. B419 (1994) 589-610
Physics
High Energy Physics
High Energy Physics - Theory
26 pages, Latex (this version replaces a previously corrupted one; epic.sty macro needed, available from hep-th in compressed
Scientific paper
10.1016/0550-3213(94)90346-8
In this paper we propose a criteria to establish the integrability of N=2 supersymmetric massive theories.The basic data required are the vacua and the spectrum of Bogomolnyi solitons, which can be neatly encoded in a graph (nodes=vacua and links= Bogomolnyi solitons). Integrability is then equivalent to the existence of solutions of a generalized Yang-Baxter equation which is built up from the graph (graph-Yang-Baxter equation). We solve this equation for two general types of graphs: circular and daisy, proving, in particular, the inte- grability of the following Landau-Ginzburg superpotentials: A_n(t_1), A_n(t_2), D_n(\tau),E_6(t_7), E_8(t_16). For circular graphs the solutions are intertwiners of the affine Hopf algebra $\tilde(U)_q(A^{(1)}_1)$, while for daisy graphs the solution corresponds to a susy generalization of the Boltzmann weights of the chiral Potts model in the trigonometric regime. A chiral Potts like solution is conjectured for the more tricky case $ D_n(t_2)$. The scattering theory of circular models, for instance $A_n(t_1)$ or $D_n(\tau)$, is Toda like. The physical spectrum of daisy models, as $A_n(t_2), E_6(t_7)$ or $E_8(t_16)$, is given by confined states of radial solitons. The scattering theory of the confined states is again Toda like. Bootstrap factors for the confined solitons are given by fusing the susy chiral Potts S-matrices of the elementary constituents, i.e. the radial solitons of the daisy graph.
Gómez César
Sierra German
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