[en] We show that the Kapitza stabilization can occur in the context of nonlinear quantum fields. Through this phenomenon, an amplitude-modulated lattice can stabilize a Bose–Einstein condensate with repulsive interactions and prevent the spreading for long times. We present a classical and quantum analysis in the framework of Gross-Pitaevskii equation, specifying the parameter region where stabilization occurs. Effects of nonlinearity lead to a significant increase of the stability domain compared with the classical case. Our proposal can be experimentally implemented with current cold atom settings.
Disciplines :
Physics
Author, co-author :
Martin, John ; Université de Liège - ULiège > Département de physique > Optique quantique
Georgeot, Bertrand; Laboratoire de Physique Théorique, IRSAMC, Université de Toulouse, CNRS, UPS, France
Guéry-Odelin, David; Laboratoire Collisions, Agrégats, Réactivité, IRSAMC, Université de Toulouse, CNRS, UPS, France
Shepelyansky, Dima; Laboratoire de Physique Théorique, IRSAMC, Université de Toulouse, CNRS, UPS, France
Language :
English
Title :
Kapitza stabilization of a repulsive Bose-Einstein condensate in an oscillating optical lattice
Publication date :
05 February 2018
Journal title :
Physical Review. A, Atomic, molecular, and optical physics
ISSN :
1050-2947
eISSN :
1094-1622
Publisher :
American Physical Society, United States - Maryland
Volume :
97
Pages :
023607
Peer reviewed :
Peer Reviewed verified by ORBi
Tags :
CÉCI : Consortium des Équipements de Calcul Intensif
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