Geometric phase effect at N-fold electronic degeneracies in Jahn-Teller systems

Abstract

The geometric phase effect at arbitrary integral N-fold electronic degeneracies is investigated in Jahn-Teller systems. It is shown to be a property inherent to inversion of the adiabatic electronic wave vectors in the N-dimensional electronic wave-vector space. The relationship between the geometric phase and mixing angles has also been established. © 2004 Wiley Periodicals, Inc. Int J Quantum Chem, 2004