Tunneling, self-trapping, and manipulation of higher modes of a Bose-Einstein condensate in a double well

Gillet, Jérémie; Garcia-March, Miguel A.; Busch, Thomas; Sols, F.

Tunneling, self-trapping, and manipulation of higher modes of a Bose-Einstein condensate in a double well

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Published Version

Date

2014

Authors

Gillet, Jérémie

Garcia-March, Miguel A.

Busch, Thomas

Sols, F.

Publisher

American Physical Society

Published Version

10.1103/PhysRevA.89.023614

Abstract

We consider an atomic Bose-Einstein condensate trapped in a symmetric one-dimensional double-well potential in the four-mode approximation and show that the semiclassical dynamics of the two ground-state modes can be strongly influenced by a macroscopic occupation of the two excited modes. In particular, the addition of the two excited modes already unveils features related to the effect of dissipation on the condensate. In general, we find a rich dynamics that includes Rabi oscillations, a mixed Josephson-Rabi regime, self-trapping, chaotic behavior, and the existence of fixed points. We investigate how the dynamics of the atoms in the excited modes can be manipulated by controlling the atomic populations of the ground states.

Keywords

Macroscopic superposition states , Bosons , Dynamics , Gases

Citation

Gillet, J., Garcia-March, M. A., Busch, T. and Sols, F. (2014) 'Tunneling, self-trapping, and manipulation of higher modes of a Bose-Einstein condensate in a double well', Physical Review A, 89(2), 023614 (10pp). doi: 10.1103/PhysRevA.89.023614