J. Inoue et T. Tokihiro, ANALYSIS OF ONE-DIMENSIONAL FRENKEL EXCITONS IN TERMS OF THE HALDANE-SHASTRY MODEL, Physical review. B, Condensed matter, 58(3), 1998, pp. 1134-1137
A one-dimensional Frenkel excitonic chain confined in a two-dimensiona
l microcavity is described by the spin-1/2 Haldane-Shastry model with
anisotropy. Dispersion relations, long-range string states, and nonlin
ear optical properties are discussed. [S0163-1829(98)02524-7].