Tunneling Dynamics of Bose-Einstein Condensates with Feshbach Resonances

Дата и время публикации : 2000-04-29T04:46:06Z

Авторы публикации и институты :
Bambi Hu
Le-Man Kuang

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 6 pages, 2 figures, RevTex, to appear in Phys. Rev. A (July 2000)
Первичная категория: cond-mat.soft

Все категории : cond-mat.soft

Краткий обзор статьи: We study tunneling dynamics of atomic pairs in Bose-Einstein condensates with Feshbach resonances. It is shown that the tunneling of the atomic pairs depends on not only the tunneling coupling between the atomic condensate and the molecular condensate, but also the inter-atomic nonlinear interactions and the initial number of atoms in these condensates. It is found that in addition to oscillating tunneling current between the atomic condensate and the molecular condensate, the nonlinear atomic-pair tunneling dynamics sustains a self-locked population imbalance: macroscopic quantum self-trapping effect. Influence of decoherence induced by non-condensate atoms on tunneling dynamics is investigated. It is shown that decoherence suppresses atomic-pair tunneling.

Category: Physics