Pl. Deandres et Ja. Verges, MANIFESTATION OF QUANTUM CHAOS IN SCATTERING TECHNIQUES - APPLICATIONTO LOW-ENERGY AND PHOTOELECTRON DIFFRACTION INTENSITIES, Physical review letters, 80(5), 1998, pp. 980-983
Intensities of low-energy electron diffraction and photoelectron diffr
action are analyzed from a statistical point of view. The probability
distribution is compared with a Porter-Thomas law, characteristic of a
chaotic quantum system, The agreement obtained is understood in terms
of analogies between simple models and Berry's conjecture for a typic
al wave function of a chaotic system. The consequences of this behavio
r on surface structural analysis are qualitatively discussed by lookin
g at the behavior of standard correlation factors. [S0031-9007(97)0522
1-6].