The loop algebra L(sl2) symmetry is found in a sector of the nilpotent BazhanovStroganov model. The Drinfeld polynomial of a L(sl2)-degenerate eigenspace of the model is equivalent to the polynomial [4, 5, 10–14] which characterizes a subspace with the Isinglike spectrum of the superintegrable chiral Potts model.

It is shown theoretically that a nonchiral, two-dimensional array of metallic spheres exhibits optical activity as manifested in calculations of circular dichroism. The metallic spheres occupy the sites of a rectangular lattice, and for off-normal incidence they show a strong circular-dichroism effect around the surface-plasmon frequencies. The optical activity is a result of the rectangular sy...

Recent results for screening masses at high temperature are presented. The spatial correlation functions of operators with meson quantum numbers were obtained on quenched gauge configurations with non-perturbatively improved Wilson quarks as well as, in a different round of analysis, on the NF = 2+1 configurations generated in the course of RBC-Bielefeld’s analysis of the Equation of State. Whi...