Oscillatory Decay of a Two-Component Bose-Einstein Condensate
- 22 July 2002
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 89 (6), 060403
- https://doi.org/10.1103/physrevlett.89.060403
Abstract
We study the decay of a two-component Bose-Einstein condensate with negative effective interaction energy. With a decreasing atom number due to losses, the atom-atom interaction becomes less important and the system undergoes a transition from a bistable Josephson regime to the monostable Rabi regime, displaying oscillations in phase and number. We study the equations of motion and derive an analytical expression for the oscillation amplitude. A quantum trajectory simulation reveals that the classical description fails for low loss rates, as expected from analytical considerations. Observation of the proposed effect will provide evidence for negative effective interaction.Keywords
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