Bound states with Jahn-Teller impurity centers
Vekhter B.C., Polinger V.Z., Rozenfel'd Yu.B., Tsukerblat B.S.
It is shown that the dynamic Jahn-Teller effect with weak electron-phonon interaction leads to the appearance of local or pseudolocal (dielectric) modes in a model in which there are no excited electronic states.