Title :

Critical state of the Anderson transition: Between a metal and an insulator

Author(s) :

Lemarié, Gabriel [Auteur]
Laboratoire Kastler Brossel [LKB (Jussieu)]
Service de physique de l'état condensé [SPEC - UMR3680]
Lignier, Hans [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Laboratoire Aimé Cotton [LAC]
Delande, Dominique [Auteur]
Laboratoire Kastler Brossel [LKB (Jussieu)]
Szriftgiser, Pascal [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Garreau, Jean-Claude [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]

Journal title :

Physical Review Letters

Pages :

090601

Publisher :

American Physical Society

Publication date :

2010-08-27

ISSN :

0031-9007

English keyword(s) :

Cold atoms
Anderson transition
Anderson localization
kicked rotor
quantum chaos

HAL domain(s) :

Physique [physics]/Physique Quantique [quant-ph]
Physique [physics]/Matière Condensée [cond-mat]/Gaz Quantiques [cond-mat.quant-gas]
Physique [physics]/Physique [physics]/Physique Atomique [physics.atom-ph]
Science non linéaire [physics]/Dynamique Chaotique [nlin.CD]

English abstract : [en]

Using a three-frequency one-dimensional kicked rotor experimentally realized with a cold atomic gas, we study the transport properties at the critical point of the metal-insulator Anderson transition. We accurately measure ...
Show more >Using a three-frequency one-dimensional kicked rotor experimentally realized with a cold atomic gas, we study the transport properties at the critical point of the metal-insulator Anderson transition. We accurately measure the time-evolution of an initially localized wavepacket and show that it displays at the critical point a scaling invariance characteristic of this second-order phase transition. The shape of the momentum distribution at the critical point is found to be in excellent agreement with the analytical form deduced from self-consistent theory of localization.Show less >

Language :

Anglais

Popular science :

Non

Comment :

4 pages, 3 figures, submitted to PRL

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL