Atom loss from the $^{85}$Rb Bose-Einstein condensate by a Feshbach resonance

Details Atom loss from the $^{85}$Rb Bose-Einstein condensate by a Feshbach resonance Atom loss from the $^{85}$Rb Bose-Einstein condensate by a Feshbach resonance

2003-08-22

arxiv.org/abs/cond-mat/0308448v1

J. Phys. B: At. Mol. Opt. Phys. 36 L335 (2003)

Physics

Condensed Matter

Soft Condensed Matter

LaTeX, 6 pages with 4 figures

Scientific paper

10.1088/0953-4075/36/19/L05

Loss of atoms from a $^{85}$Rb condensate on passage through a Feshbach resonance is analyzed using the generalized parametric approximation that takes into account quantum many-body effects. These effects lead to a substantial increase of the losses. A better agreement with experiments is achieved, compared to predictions of mean-field theories. The method provides much insight into the quantum effects involved, and on the nature of entangled atom pairs produced by the loss.

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