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DPG

Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 24: Poster: Interaction with VUV and X-ray light

A 24.15: Poster

Mittwoch, 14. März 2012, 16:30–19:00, Poster.V

Interference of states with different symmetries and differently localized electrons in N2O — •Andre Knie, Benjamin Kambs, Philipp Reiß, and Arno Ehresmann — Insitut für Physik und CINSaT der Universität Kassel, Heinrich-Plett-Str. 40 34132 Kassel, Germany

Quantum mechanical interference effects were investigated in N2O, by photon-induced fluorescence spectroscopy. Energetically overlapping resonances of states with different symmetries and differently localized 1s core electrons of the center and terminal N atoms may interfere under certain conditions, breaking the symmetries by observing the processes in distinct angles in respect to the electric field of the exciting photon. Angularly and spectrally resolved fragment fluorescence spectra taken after inner shell excitation of overlapping resonances of core electrons of the central and terminal nitrogen atom indicate interference. In a second step the polarization of the fluorescence was measured to fortify the first measurements.

Results of the measurements are shown, as well as first interpretations of these interferences.

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