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Physical Review A: Atomic, Molecular and Optical Physics 70 (2004) 013408
Analysis of dynamical tunnelling experiments with a Bose-Einstein condensate
Winfried K. Hensinger 1, 2, Amaury Mouchet 3, Paul S. Julienne 2, Dominique Delande 4, Norman R. Heckenberg 5, Halina Rubinsztein-Dunlop 5
(2004)

Dynamical tunnelling is a quantum phenomenon where a classically forbidden process occurs, that is prohibited not by energy but by another constant of motion. The phenomenon of dynamical tunnelling has been recently observed in a sodium Bose-Einstein condensate. We present a detailed analysis of these experiments using numerical solutions of the three dimensional Gross-Pitaevskii equation and the corresponding Floquet theory. We explore the parameter dependency of the tunnelling oscillations and we move the quantum system towards the classical limit in the experimentally accessible regime.
1 :  Randall Laboratory (RANDALL LABORATORY)
University of Michigan-Ann Arbor
2 :  National Institute of Standards and Technology (NIST)
U.S. Department of Commerce
3 :  Laboratoire de Mathématiques et Physique Théorique (LMPT)
CNRS : UMR6083 – Université François Rabelais - Tours
4 :  Laboratoire Kastler Brossel (LKB (Jussieu))
CNRS : UMR8552 – Université Pierre et Marie Curie [UPMC] - Paris VI – Ecole normale supérieure de Paris - ENS Paris
5 :  Centre for Biophotonics and Laser Science (CENTRE FOR BIOPHOTONICS AND LASER SCIENCE)
The University of Queensland
Science non linéaire/Dynamique Chaotique

Physique/Matière Condensée/Autre

Physique/Physique Quantique
Quantum chaos – tunnelling – cold atoms
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