We study two species of attractively interacting fermion confined to a quasi-one-dimensional geometry, in the presence of a strong scattering potential that can couple, selectively, to one or both species. We show that the fermion density distribution in the presence of such a spin-selective scattering potential reflects the pairing spin gap of the fermions. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Publication Source (Journal or Book title)
New Journal of Physics
Sheehy, D. (2011). Spin-selective scatterers as a probe of pairing in a one-dimensional interacting fermion gas. New Journal of Physics, 13 https://doi.org/10.1088/1367-2630/13/3/035015