SEARCH Articles Figures Tables Approach to Cooperative Jahn-Teller Effect in Crystals with Strong Intra-site Vibronic Coupling Jahn-Teller Jahn-Teller coupling constant Jahn-Teller effect higher order coupling Jahn-Teller effect spin-orbit coupling Jahn-Teller effect vibronic coupling Jahn-Teller effect, linear vibronic coupling Non-adiabatic coupling Jahn-Teller systems, Longuet-Higgins Pseudo Jahn-Teller coupling Pseudo Jahn-Teller couplings, linear Tunneling splitting in a two-level system with pseudo-Jahn-Teller coupling Vibronic couplings Jahn-Teller coupling Vibronic couplings pseudo-Jahn-Teller coupling