2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28748The most elementary of all physical spin-orbital models is the Kugel-Khomskii model describing a S=1/2, $e_g$ degenerate Mott-insulator. Recent theoretical work is reviewed revealing that the classical limit is characterized by a point of perfect dynamical frustration. It is suggested that this might give rise to a quantum disordered ground state.7 pages Revtex, 3 ps figures, proceedings 1998 NEC symposium, Nasu, JapanStrongly Correlated Electronstext