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Issue 7, 2017
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The structure of a resonance state

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Abstract

The existence of a structure in a resonance state is systematically investigated. A resonance structure is defined as the energy dependence across the resonance width of the fragment state distributions produced upon resonance decay. Different types of resonances, both isolated and overlapping ones, have been explored for this purpose. It is found that isolated resonances do not present an appreciable energy dependence on the product state distributions. On the contrary, overlapping resonances exhibit a clear structure regarding the fragment distributions, which becomes increasingly more pronounced as the intensity of the overlap between the resonances increases. Such an energy dependence of the product distributions arises from the quantum interference between the amplitudes of the overlapping resonances, as demonstrated formally here by the equations derived from the condition of resonance overlap. The application of the present effect to the control of the fragment state distributions produced in a wide variety of molecular processes governed by resonance states is envisioned.

Graphical abstract: The structure of a resonance state

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Article information


Submitted
30 Jan 2017
Accepted
04 Apr 2017
First published
06 Apr 2017

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2017,8, 4804-4810
Article type
Edge Article

The structure of a resonance state

A. García-Vela, Chem. Sci., 2017, 8, 4804
DOI: 10.1039/C7SC00452D

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