Experimental observation of the Anderson metal-insulator transition with atomic matter waves.
We realize experimentally an atom-optics quantum-chaotic system, the quasiperiodic kicked rotor, which is equivalent to a 3D disordered system that allows us to demonstrate the Anderson metal-insulator transition. Sensitive measurements of the atomic wave function and the use of finite-size scaling techniques make it possible to extract both the critical parameters and the critical exponent of the transition, the latter being in good agreement with the value obtained in numerical simulations of the 3D Anderson model.
Chabé
Julien
J
Laboratoire de Physique des Lasers, Atomes et Molécules, Université des Sciences et Technologies de Lille, CNRS; CERLA; F-59655 Villeneuve d'Ascq Cedex, France.
Lemarié
Gabriel
G
Grémaud
Benoît
B
Delande
Dominique
D
Szriftgiser
Pascal
P
Garreau
Jean Claude
JC