Geometric phase effects in dynamics near conical intersections: Symmetry breaking and spatial localization

Abstract

We show that finite systems with conical intersections can exhibit spontaneous symmetry breaking which manifests itself in spatial localization of eigenstates. This localization has a geometric phase origin and is robust against variation of model parameters. The transition between localized and delocalized eigenstate regimes resembles a continuous phase transition. The localization slows down the low-energy quantum nuclear dynamics at zero and low temperatures.

5 pages, 5 figures

References in corpus (1)

• Topological Insulators

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