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Phase Evolution in a Multi-Component System

Robert Englman Asher Yahalom

quant-pharXiv:quant-ph/0406195

Abstract

We derive a general expression for the expectation value of the phase acquired by a time dependent wave function in a multi component system, as excursions are made in its coordinate space. We then obtain the mean phase for the (linear dynamic E ε) Jahn-Teller situation in an electronically degenerate system. We interpret the phase-change as an observable measure of the effective nodal structure of the wave function.

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