title: Controlling interactions between highly magnetic atoms with Feshbach resonances.
abstract: This paper reviews current experimental and theoretical progress in the study of dipolar quantum gases of ground and meta-stable atoms with a large magnetic moment. We emphasize the anisotropic nature of Feshbach resonances due to coupling to fast-rotating resonant molecular states in ultracold s-wave collisions between magnetic atoms in external magnetic fields. The dramatic differences in the distribution of resonances of magnetic (7)S3 chromium and magnetic lanthanide atoms with a submerged 4f shell and non-zero electron angular momentum is analyzed. We focus on dysprosium and erbium as important experimental advances have been recently made to cool and create quantum-degenerate gases for these atoms. Finally, we describe progress in locating resonances in collisions of meta-stable magnetic atoms in electronic P-states with ground-state atoms, where an interplay between collisional anisotropies and spin-orbit coupling exists.
authors.affiliation: Department of Physics, Temple University, Philadelphia, PA 19122, USA.
authors.forename: Svetlana
authors.initials: S
authors.lastname: Kotochigova
mesh_terms: D003198:Computer Simulation; D004583:Electrons; D005740:Gases / Q000737:chemistry* / Q000528:radiation effects*; D060526:Magnetic Fields; D008956:Models, Chemical; D011789:Quantum Theory
chemical_list: D005740:Gases