Atom loss from Bose-Einstein condensates due to Feshbach resonance
Atom loss from Bose-Einstein condensates due to Feshbach resonance
复制标题
费什巴赫共振导致玻色-爱因斯坦凝聚态原子损失
DOI：
10.1103/physreva.60.r765
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发表时间：
1999
影响因子：
2.9
通讯作者：
Usa
中科院分区：
文献类型：
--
作者：
V. Yurovsky;A. Ben;P. Julienne;C. S. O. Chemistry;T. University;T. Aviv;Israel Atomic Physics Division;Nist;Gaithersburg;Usa
在最近关于Na玻色-爱因斯坦凝聚的实验中[S. Inouye等人，Nature 392，151（1998）; J. Stenger等人，Phys.Rev.Lett. 82，2422（1999）]，当使用时变磁场来调谐属于凝聚体多体波函数的原子对的状态附近的分子Feshbach共振状态时，观察到大的损失率。这里提供的机制来解释所观察到的损失，根据与第三凝聚原子的相互作用的共振分子状态的失活。
In recent experiments on Na Bose-Einstein condensates [S. Inouye et al, Nature 392, 151 (1998); J. Stenger et al, Phys. Rev. Lett. 82, 2422 (1999)], large loss rates were observed when a time-varying magnetic field was used to tune a molecular Feshbach resonance state near the state of pairs of atoms belonging to the condensate many-body wavefunction. A mechanism is offered here to account for the observed losses, based on the deactivation of the resonant molecular state by interaction with a third condensate atom.