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The structure of a resonance state

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,...

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Autor principal: García-Vela, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5602369/
https://www.ncbi.nlm.nih.gov/pubmed/28959402
http://dx.doi.org/10.1039/c7sc00452d
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author García-Vela, A.
author_facet García-Vela, A.
author_sort García-Vela, A.
collection PubMed
description 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.
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spelling pubmed-56023692017-09-28 The structure of a resonance state García-Vela, A. Chem Sci Chemistry 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. Royal Society of Chemistry 2017-07-01 2017-04-06 /pmc/articles/PMC5602369/ /pubmed/28959402 http://dx.doi.org/10.1039/c7sc00452d Text en This journal is © The Royal Society of Chemistry 2017 http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Chemistry
García-Vela, A.
The structure of a resonance state
title The structure of a resonance state
title_full The structure of a resonance state
title_fullStr The structure of a resonance state
title_full_unstemmed The structure of a resonance state
title_short The structure of a resonance state
title_sort structure of a resonance state
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5602369/
https://www.ncbi.nlm.nih.gov/pubmed/28959402
http://dx.doi.org/10.1039/c7sc00452d
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