Occupation Statistics of a Bose-Einstein Condensate for a Driven Landau-Zener Crossing
Katrina Smith-Mannschott, Maya Chuchem, Moritz Hiller +2 more
We consider an atomic Bose-Einstein condensate loaded in a biased double-well trap with tunneling rate K and interatomic interaction U. The Bose-Einstein condensate is prepared such that all N atoms are in the left well. We drive the system by sweeping the potential difference E between the two wells. Depending on the interaction u=NU/K and the sweep rate E, we distinguish three dynamical regimes: adiabatic, diabatic, and sudden and consider the occupation statistics of the final state. The analysis goes beyond mean-field theory and is complemented by a semiclassical picture.
arXiv:0901.2807•Physical Review Letters•Jun 8, 2009•32 citations