Tunneling in Jahn-Teller Systems and Multidimensional WKB Approximation

School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, UK [Pg.59]

Tunneling splitting in a two-level system with pseudo-Jahn-Teller coupling 66 [Pg.59]

Jahn-Teller tunneling in three dimensions the T t2 case 73 [Pg.59]

Originally, the Jahn-Teller (JT) theorem was formulated as a prediction of a symmetry break for any non-linear polyatomic molecule with an orbital degeneracy in its ground state. However, as we understand it now, the real meaning of the JT theorem is a non-zero slope of the adiabatic potential energy surface (APES) at the point of electron degeneracy. This does not necessarily result in a lowering of [Pg.59]

ADVANCES IN QUANTUM CHEMISTRY, VOLUME 44 ISSN 0065-3276 DOI 10.1016/S0065-3276(03)44005-7 [Pg.59]

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