Quantum scaling laws in the onset of dynamical delocalization.
We study the destruction of dynamical localization experimentally observed in an atomic realization of the kicked rotor by a deterministic Hamiltonian perturbation, with a temporal periodicity incommensurate with the principal driving. We show that the destruction is gradual, with well-defined scaling laws for the various classical and quantum parameters, in sharp contrast to predictions based on the analogy with Anderson localization.
Chabé
Julien
J
Laboratoire de Physique des Lasers, Atomes et Molécules, Université des Sciences et Technologies de Lille, Centre d'Etudes et Recherches Lasers et Applications, F-59655 Villeneuve d'Ascq Cedex, France.
Lignier
Hans
H
Cavalcante
Hugo
H
Delande
Dominique
D
Szriftgiser
Pascal
P
Garreau
Jean Claude
JC