Title :

Instabilities in a Magneto-optical Trap: Noise-Induced Dynamics in an Atomic System

Author(s) :

Wilkowski, David [Auteur]
Centre d'Etudes et de Recherches Lasers et Applications [CERLA]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Ringot, Jean [Auteur]
Centre d'Etudes et de Recherches Lasers et Applications [CERLA]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Hennequin, Daniel [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 :

1839-1842

Publisher :

American Physical Society

Publication date :

2000

ISSN :

0031-9007

HAL domain(s) :

Physique [physics]/Physique Quantique [quant-ph]
Physique [physics]/Physique [physics]/Physique Atomique [physics.atom-ph]
Physique [physics]/Physique [physics]/Optique [physics.optics]
Science non linéaire [physics]/Dynamique Chaotique [nlin.CD]

English abstract : [en]

The instabilities observed in the atomic cloud of a magneto-optical trap are experimentally studied through the dynamics of the center of mass location and the cloud population. Two dynamical components are identified: a ...
Show more >The instabilities observed in the atomic cloud of a magneto-optical trap are experimentally studied through the dynamics of the center of mass location and the cloud population. Two dynamical components are identified: a slow, stochastic one affects both variables, and a fast, deterministic one affects only the center of mass location. A one-dimensional stochastic model taking into account the shadow effect is developed from these observations and reproduces the experimental behavior. It is shown that instabilities are driven by noise and present stochastic resonancelike characteristics.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Non spécifiée

Popular science :

Non

Collections :

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

Source :

Harvested from HAL