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arXiv · 0903.2786

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

Bogdan Mihaila·Andres Cardenas
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Abstract

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.

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Bogdan Mihaila, Andres Cardenas. 2009-03-16. Coupled-cluster theory of a gas of strongly-interacting fermions in the dilute limit. https://doi.org/10.1080/14786430802676437

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