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Single photon induced symmetry breaking of H2 dissociation

Description: H{sub 2}, the smallest and most abundant molecule in the universe, has a perfectly symmetric ground state. What does it take to break this symmetry? Here we show that the inversion symmetry can be broken by absorption of a linearly polarized photon, which itself has inversion symmetry. In particular, the emission of a photoelectron with subsequent dissociation of the remaining H{sub 2}{sup +} fragment shows no symmetry with respect to the ionic H+ and neutral H atomic fragments. This result is … more
Date: December 6, 2006
Creator: Martin, F.; Fernandez, J.; Havermeier, T.; Foucar, L.; Weber, Th.; Kreidi, K. et al.
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Partner: UNT Libraries Government Documents Department
open access

Fully differential cross sections for photo-double-ionization of D{sub 2}

Description: We report the first kinematically complete study of the four-body fragmentation of the D2 molecule following absorption of a single photon. For equal energy sharing of the two electrons and a photon energy of 75.5 eV, we observed the relaxation of one of the selection rules valid for He photo-double ionization and a strong dependence of the electron angular distribution on the orientation of the molecular axis. This effect is reproduced by a model in which a pair of photoionization amplitudes i… more
Date: July 15, 2003
Creator: Weber, Th.; Czasch, A.; Jagutzki, O.; Mueller, A.; Mergel, V.; Kheifets, A. et al.
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Partner: UNT Libraries Government Documents Department
open access

The Simplest Double Slit: Interference and Entanglement in Double Photoionization of H2

Description: The wave nature of particles is rarely seen in nature. One reason is their very short de Broglie wavelengths in most situations. However, even with wavelengths close to the size of their surroundings, they couple to their environment, e.g. by gravity, Coulomb interaction, or thermal radiation. These couplings shift the phase of the waves, often in an uncontrolled way, hence yielding varying amounts of decoherence i.e. loss of phase integrity. Decoherence is thought to be a main cause of the tra… more
Date: September 18, 2007
Creator: Akoury , D.; Kreidi, K.; Jahnke , T.; Weber, Th.; Staudte , A.; Schoffler, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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