Instability and control of a periodically-driven Bose-Einstein condensate

Details Instability and control of a periodically-driven Bose-Einstein condensate Instability and control of a periodically-driven Bose-Einstein condensate

2008-09-18

arxiv.org/abs/0809.3198v1

Phys. Rev. A 79, 063612 (2009)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 eps figures

Scientific paper

10.1103/PhysRevA.79.063612

We investigate the dynamics of a Bose-Einstein condensate held in an optical lattice under the influence of a strong periodic driving potential. Studying the mean-field version of the Bose-Hubbard model reveals that the condensate becomes highly unstable when the effective intersite tunneling becomes negative. We further show how controlling the sign of the tunneling can be used as a powerful tool to manage the dispersion of an atomic wavepacket, and thus to create a pulsed atomic soliton laser.

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