Gradual collapse of nuclear wave functions regulated by frequency tuned X-ray scattering

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dc.creatorIgnatova, Nina
dc.creatorCruz, Vinícius Vaz da
dc.creatorCouto, Rafael Carvalho
dc.creatorZimin, Andrey
dc.creatorGuimarães, Freddy Fernandes
dc.creatorPolyutov, Sergey
dc.creatorÅgren, Hans
dc.creatorKimberg, Victor
dc.creatorOdelius, Michael
dc.creatorGel’mukhanov, Faris
dc.date.accessioned2024-01-04T14:19:47Z
dc.date.available2024-01-04T14:19:47Z
dc.date.issued2017
dc.description.abstractAs is well established, the symmetry breaking by isotope substitution in the water molecule results in localisation of the vibrations along one of the two bonds in the ground state. In this study we find that this localisation may be broken in excited electronic states. Contrary to the ground state, the stretching vibrations of HDO are delocalised in the bound core-excited state in spite of the mass difference between hydrogen and deuterium. The reason for this effect can be traced to the narrow “canyon-like” shape of the potential of the state along the symmetric stretching mode, which dominates over the localisation mass-difference effect. In contrast, the localisation of nuclear motion to one of the HDO bonds is preserved in the dissociative core-excited state . The dynamics of the delocalisation of nuclear motion in these core-excited states is studied using resonant inelastic X-ray scattering of the vibrationally excited HDO molecule. The results shed light on the process of a wave function collapse. After core-excitation into the state of HDO the initial wave packet collapses gradually, rather than instantaneously, to a single vibrational eigenstate.
dc.identifier.citationIGNATOVA, Nina et al. Gradual collapse of nuclear wave functions regulated by frequency tuned X-ray scattering . Scientific Reports, London, v. 7, e43891, 2017. DOI: 10.1038/srep43891. Disponível em: https://www.nature.com/articles/srep43891. Acesso em: 13 dez. 2023.
dc.identifier.doi10.1038/srep43891
dc.identifier.issne- 2045-2322
dc.identifier.urihttp://repositorio.bc.ufg.br//handle/ri/24039
dc.language.isoeng
dc.publisher.countryGra-bretanha
dc.publisher.departmentInstituto de Química - IQ (RMG)
dc.rightsAcesso Aberto
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleGradual collapse of nuclear wave functions regulated by frequency tuned X-ray scattering
dc.typeArtigo

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