title: p-Wave interactions in low-dimensional fermionic gases.
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. For both the one-dimensional and the two-dimensional gases, 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.
authors.affiliation: Institute of Quantum Electronics, ETH Zürich, Hönggerberg, CH-8093 Zürich, Switzerland.
authors.forename: Kenneth
authors.initials: K
authors.lastname: Günter
authors.forename: Thilo
authors.initials: T
authors.lastname: Stöferle
authors.forename: Henning
authors.initials: H
authors.lastname: Moritz
authors.forename: Michael
authors.initials: M
authors.lastname: Köhl
authors.forename: Tilman
authors.initials: T
authors.lastname: Esslinger