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Miron C, Kimberg V, Morin P, et al. Vibrational scattering anisotropy generated by multichannel quantum interference. Phys Rev Lett. 2010;105(9):093002doi: 10.1103/PhysRevLett.105.093002.
Miron, C., Kimberg, V., Morin, P., Nicolas, C., Kosugi, N., Gavrilyuk, S., & Gel'mukhanov, F. (2010). Vibrational scattering anisotropy generated by multichannel quantum interference. Physical review letters, 105(9), 093002. https://doi.org/10.1103/PhysRevLett.105.093002
Miron, Catalin, et al. "Vibrational scattering anisotropy generated by multichannel quantum interference." Physical review letters vol. 105,9 (2010): 093002. doi: https://doi.org/10.1103/PhysRevLett.105.093002
Miron C, Kimberg V, Morin P, Nicolas C, Kosugi N, Gavrilyuk S, Gel'mukhanov F. Vibrational scattering anisotropy generated by multichannel quantum interference. Phys Rev Lett. 2010 Aug 27;105(9):093002. doi: 10.1103/PhysRevLett.105.093002. Epub 2010 Aug 26. PMID: 20868156.
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Phys Rev Lett. 2010 Aug 27;105(9):093002. doi: 10.1103/PhysRevLett.105.093002. Epub 2010 Aug 26.

Vibrational scattering anisotropy generated by multichannel quantum interference.

Physical review letters

Catalin Miron, Victor Kimberg, Paul Morin, Christophe Nicolas, Nobuhiro Kosugi, Sergey Gavrilyuk, Faris Gel'mukhanov

Affiliations

  1. Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France.

PMID: 20868156 DOI: 10.1103/PhysRevLett.105.093002

Abstract

Based on angularly and vibrationally resolved electron spectroscopy measurements in acetylene, we report the first observation of anomalously strong vibrational anisotropy of resonant Auger scattering through the C 1s→π* excited state. We provide a theoretical model explaining the new phenomenon by three coexisting interference effects: (i) interference between resonant and direct photoionization channels, (ii) interference of the scattering channels through the core-excited bending states with orthogonal orientation of the molecular orbitals, (iii) scattering through two wells of the double-well bending mode potential. The interplay of nuclear and electronic motions offers in this case a new type of nuclear wave packet interferometry sensitive to the anisotropy of nuclear dynamics: whether which-path information is available or not depends on the final vibrational state serving for path selection.

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