Journal article
Symmetry-Forbidden Electronic State Interference Observed in Angularly Resolved NO⁺(A¹ Π) Deexcitation Spectra of the N*O(2 σ-1 2π²) Resonance
Publication Details
Authors: | Demekhin, P.; Petrov, I.; Sukhorukov, V.; Kielich, W.; Knie, A.; Schmoranzer, H.; Ehresmann, A. |
Publication year: | 2010 |
Journal: | Physical Review Letters |
Pages range : | 243001 |
Journal acronym: | PRL |
Volume number: | 104 |
ISSN: | 0031-9007 |
eISSN: | 1079-7114 |
DOI-Link der Erstveröffentlichung: |
Abstract
Quantum mechanical interference between different pathways in inner-shell resonance excitation-deexcitation spectra is a realization of a double-slit experiment on the atomic scale. If the intermediate inner-shell resonances are of different symmetries, this interference is symmetry forbidden in the solid-angle-averaged or magic-angle-recorded deexcitation spectra. It has, however, been suggested that interference may by observable in off-magic-angle-recorded spectra. Here, we prove this interference in angularly resolved deexcitation spectra of the 2σ-12π2(2Δ, 2Σ±) resonances of N*O by a quantitative comparison between ab initio calculations and experiment.
Quantum mechanical interference between different pathways in inner-shell resonance excitation-deexcitation spectra is a realization of a double-slit experiment on the atomic scale. If the intermediate inner-shell resonances are of different symmetries, this interference is symmetry forbidden in the solid-angle-averaged or magic-angle-recorded deexcitation spectra. It has, however, been suggested that interference may by observable in off-magic-angle-recorded spectra. Here, we prove this interference in angularly resolved deexcitation spectra of the 2σ-12π2(2Δ, 2Σ±) resonances of N*O by a quantitative comparison between ab initio calculations and experiment.
