Article (Scientific journals)
Suppression of Decoherence in Fast-Atom Diffraction at Surfaces
Aigner, F.; Simonovic, N.; Solleder, B. et al.
2008In Physical Review Letters, 101 (25)
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Abstract :
[en] Scattering of fast neutral atoms with keV kinetic energies at alkali-halide surfaces under grazing angles displays intriguing diffraction patterns. The surprisingly strong persistence of quantum coherence despite the impulsive interaction with an environment at solid state density and elevated temperatures raises fundamental questions such as to the suppression of decoherence and of the quantum-to-classical crossover. We present an ab initio simulation of the quantum diffraction of fast helium beams at a LiF (100) surface in the < 110 > direction and compare with recent experimental diffraction data. From the quantitative reconstruction of diffraction images the vertical LiF-surface reconstruction, or buckling, can be determined.
Disciplines :
Physics
Author, co-author :
Aigner, F.;  Technische Universität Wien = Vienna University of Technology - TU Vienna > Institute for Theoretical Physics
Simonovic, N.;  Technische Universität Wien = Vienna University of Technology - TU Vienna / Institute of Physics Belgrade
Solleder, B.;  Technische Universität Wien = Vienna University of Technology - TU Vienna > Institute for Theoretical Physics
Wirtz, Ludger ;  CNRS UMR-8520 > IEMN, Departement ISEN
Burgdörfer, Joachim;  Technische Universität Wien = Vienna University of Technology - TU Vienna > Institute for Theoretical Physics
Language :
English
Title :
Suppression of Decoherence in Fast-Atom Diffraction at Surfaces
Publication date :
2008
Journal title :
Physical Review Letters
ISSN :
1079-7114
Publisher :
American Physical Society, Ridge, United States - New York
Volume :
101
Issue :
25
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 12 November 2013

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