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p-Wave Interactions in Low-Dimensional Fermionic gases

Kenneth Günter·Thilo Stöferle·Henning Moritz·Michael Köhl·Tilman Esslinger
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Abstract

We study a spin-polarized degenerate Fermi gas interacting via a p-wave Feshbach resonance in an optical lattice. The strong confinement available in this system allows us to realize one- and two-dimensional gases and therefore to restrict the asymptotic scattering states of atomic collisions. When aligning the atomic spins along (or perpendicular to) the axis of motion in a one-dimensional gas, scattering into channels with the projection of the angular momentum of |m|=1 (or m=0) can be inhibited. In two and three dimensions we observe the doublet structure of the p-wave Feshbach resonance. Both for the one-dimensional and the two-dimensional gas we find a shift of the position of the resonance with increasing confinement due to the change in collisional energy. In a three-dimensional optical lattice the losses on the Feshbach resonance are completely suppressed.

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Kenneth Günter, Thilo Stöferle, Henning Moritz, Michael Köhl, Tilman Esslinger. 2005-11-29. p-Wave Interactions in Low-Dimensional Fermionic gases. https://doi.org/10.1103/physrevlett.95.230401

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