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arXiv · 0811.4284

Scattering Resonances in a Degenerate Fermi Gas

K. J. Challis·N. Nygaard·K. Mølmer
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Abstract

We consider elastic single-particle scattering from a one-dimensional two-component trapped superfluid Fermi gas when the incoming projectile particle is identical to one of the confined species. Our theoretical treatment is based on the Hartree-Fock ground state of the trapped gas and a configuration-interaction description of the excitations. We determine the scattering phase shifts for the system and predict Fano-type scattering resonances that are a direct consequence of inter-atomic pairing. We describe the main characteristics of the scattering resonances and make a comparison with the results of BCS mean-field theory.

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K. J. Challis, N. Nygaard, K. Mølmer. 2008-11-26. Scattering Resonances in a Degenerate Fermi Gas. https://doi.org/10.1103/physreva.79.052701

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