Title :

Tracking quasi-classical chaos in ultracold boson gases

Author(s) :

Lepers, Maxence [Auteur]
Centre d'Etudes et de Recherches Lasers et Applications [CERLA]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Zehnlé, Véronique [Auteur]
Centre d'Etudes et de Recherches Lasers et Applications [CERLA]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Garreau, Jean-Claude [Auteur]
Centre d'Etudes et de Recherches Lasers et Applications [CERLA]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]

Journal title :

Physical Review Letters

Pages :

144103

Publisher :

American Physical Society

Publication date :

2008-10-03

ISSN :

0031-9007

HAL domain(s) :

Physique [physics]/Physique Quantique [quant-ph]
Physique [physics]/Matière Condensée [cond-mat]/Autre [cond-mat.other]
Science non linéaire [physics]/Dynamique Chaotique [nlin.CD]

English abstract : [en]

We study the dynamics of a ultra-cold boson gas in a lattice submitted to a constant force. We track the route of the system towards chaos created by the many-body-induced nonlinearity and show that relevant information ...
Show more >We study the dynamics of a ultra-cold boson gas in a lattice submitted to a constant force. We track the route of the system towards chaos created by the many-body-induced nonlinearity and show that relevant information can be extracted from an experimentally accessible quantity, the gas mean position. The threshold nonlinearity for the appearance of chaotic behavior is deduced from KAM arguments and agrees with the value obtained by calculating the associated Lyapunov exponent.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Comment :

4 pages, revtex4, submitted to PRL

Collections :

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

Source :

Harvested from HAL