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arXiv 0903.2786cond-mat.str-elhep-phnucl-th
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稀释极限下强相互作用费米子气体的耦合集团理论

Coupled-cluster theory of a gas of strongly-interacting fermions in the dilute limit

Bogdan Mihaila, Andres Cardenas

摘要:

在耦合集团展开(CCE)框架下研究了强相互作用费米子稀气体的基态性质。我们表明,属性,如普遍性,开放的间隙中的激发光谱和适用性的s波近似自然出现在CCE的方法。在零密度极限,我们表明,基态能量密度取决于只有一个参数,反过来可能取决于最多的系统的空间维数。

英文摘要:

We study the ground-state properties of a dilute gas of strongly-interacting fermions in the framework of the coupled-cluster expansion (CCE). We demonstrate that properties such as universality, opening of a gap in the excitation spectrum and applicability of s-wave approximations appear naturally in the CCE approach. In the zero-density limit, we show that the ground-state energy density depends on only one parameter which in turn may depend at most on the spatial dimensionality of the system.

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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