HAL : hal-00394331, version 3

arXiv : 0906.2121

DOI : 10.1098/rsta.2010.0027

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Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Mathematical or Physical Character 368 (2010) 2163-2177

Versions disponibles :

v1 (11-06-2009)

v2 (11-06-2009)

v3 (27-01-2010)

How to characterize the dynamics of cold atoms in non dissipative optical lattices?

Daniel Hennequin (  Auteur correspondant ) 1, Philippe Verkerk 1

(13/05/2010)

We examine here the classical dynamics of cold atoms in square optical lattices, i.e. lattices obtained with two orthogonal stationary plane waves. Contrary to much of the past studies in this domain, the potential is here time independent and non dissipative. We show that, as a function of the experimental parameters, very different behaviors are obtained, both for the dynamics of atoms trapped inside individual sites, and for atoms travelling between sites: inside the sites, chaos may be a main regime or, on the contrary, may be negligible; outside the sites, chaos sometimes coexists with other regimes. We discuss what are the consequences of these differences on the macroscopic behavior of the atoms in the lattice, and we propose experimental measurements able to characterize these dynamics and to distinguish between the different cases.

1 :	Physique des Lasers, Atomes et Molécules (PhLAM)
	CNRS : UMR8523 – Université des Sciences et Technologies de Lille - Lille I

Équipe de recherche : Phar Dynamique

Domaine

:

Physique/Physique/Physique Atomique Science non linéaire/Dynamique Chaotique

Mots Clés : Cold atoms – optical lattices – conservative dynamics

hal-00394331, version 3

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Contributeur : Daniel HENNEQUIN <>

Soumis le : Mercredi 27 Janvier 2010, 16:25:35

Dernière modification le : Mercredi 8 Septembre 2010, 18:00:04