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arXiv 0802.2553physics.atom-ph
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超冷原子-分子与费米子原子的碰撞

Ultracold atom-molecule collisions with fermionic atoms

J. P. D'Incao, B. D. Esry, Chris H. Greene

摘要:

研究了费米子原子的s波和p波分子与第三原子碰撞时的弹性和非弹性性质。在不同的自旋状态的费米子的s-波二聚体的计算碰撞特性的分析,使我们能够比较和突出的物理机制,确定的s-波和p-波分子的稳定性。与s-波分子相反,p-波分子的碰撞性质被发现在很大程度上对p-波散射长度的变化不敏感,并且这些碰撞通常会导致短的分子寿命。我们还讨论了这一结果的理论和实验涉及简并费米气体的重要性。

英文摘要:

Elastic and inelastic properties of weakly bound s- and p-wave molecules of fermionic atoms that collide with a third atom are investigated. Analysis of calculated collisional properties of s-wave dimers of fermions in different spin states permit us to compare and highlight the physical mechanisms that determine the stability of s-wave and p-wave molecules. In contrast to s-wave molecules, the collisional properties of p-wave molecules are found to be largely insensitive to variations of the p-wave scattering length and that these collisions will usually result in short molecular lifetimes. We also discuss the importance of this result for both theories and experiments involving degenerate Fermi gases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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