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arXiv · 1709.07792

Kapitza stabilization of a repulsive Bose-Einstein condensate in an oscillating optical lattice

J. Martin·B. Georgeot·D. Guéry-Odelin·D. L. Shepelyansky
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Abstract

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.

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J. Martin, B. Georgeot, D. Guéry-Odelin, D. L. Shepelyansky. 2017-09-22. Kapitza stabilization of a repulsive Bose-Einstein condensate in an oscillating optical lattice. https://doi.org/10.1103/physreva.97.023607

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