arXiv:1009.4476 · Physical Review A

Oscillatory pairing of fermions in spin-split traps

Kuei Sun, Julia S. Meyer, Daniel E. Sheehy, Smitha Vishveshwara

Published Mar 11, 2011• 13 citations

Abstract

As a means of realizing oscillatory pairing between fermions, we study superfluid pairing between two fermion ``spin'' species that are confined to adjustable spin-dependent trapping potentials. Focusing on the one-dimensional limit, we find that with increasing separation between the spin-dependent traps, the fermions exhibit distinct phases, including a fully paired phase, a spin-imbalanced phase with oscillatory pairing, and an unpaired fully spin-polarized phase. We obtain the phase diagram of fermions in such a spin-split trap and discuss signatures of these phases in cold-atom experiments.

DOI: 10.1103/physreva.83.033608

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