Scattering Resonances in a Degenerate Fermi Gas

Details Scattering Resonances in a Degenerate Fermi Gas Scattering Resonances in a Degenerate Fermi Gas

2008-11-26

arxiv.org/abs/0811.4284v1

Phys. Rev. A 79, 052701 (2009)

Physics

Condensed Matter

Other Condensed Matter

8 pages, 5 figures

Scientific paper

10.1103/PhysRevA.79.052701

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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