arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0704.0385cond-mat.other
收藏

超冷囚禁费米气体中的超壳层结构和配对

Super-shell structures and pairing in ultracold trapped Fermi gases

M. Ogren, H. Heiselberg

摘要:

本文计算了在平均场和非谐四次势的影响下,简谐势阱中费米子原子超冷稀薄气体的能级密度和对能隙。超壳层结构,这是发现在哈特里-福克计算,分析计算周期轨道理论,以及从WKB计算。对于有吸引力的相互作用,潜在的能级密度是至关重要的配对和超壳结构的差距进行了预测。

英文摘要:

We calculate level densities and pairing gaps for an ultracold dilute gas of fermionic atoms in harmonic traps under the influence of mean field and anharmonic quartic trap potentials. Super-shell structures, which were found in Hartree-Fock calculations, are calculated analytically within periodic orbit theory as well as from WKB calculations. For attractive interactions, the underlying level densities are crucial for pairing and super-shell structures in gaps are predicted.

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。

↑