Pairing in asymmetric two-component fermion matter

Details Pairing in asymmetric two-component fermion matter Pairing in asymmetric two-component fermion matter

2001-11-20

arxiv.org/abs/cond-mat/0111373v1

Phys. Lett. A, vol. 290, pp. 317-321 (2001)

Physics

Condensed Matter

Soft Condensed Matter

LaTeX 2.09, 12 pages, 4 figures. To appear in Phys. Lett. A

Scientific paper

10.1016/S0375-9601(01)00681-8

We analyze the possibilities of pairing between two different fermion species in asymmetric matter at low density. While the direct interaction allows pairing only for very small asymmetries, the pairing mediated by polarization effects is always possible, with a pronounced maximum at finite asymmetry. We present analytical results up to second order in the low-density parameter $k_F a$.

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