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 S 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.
Keywords
Cite
@article{arxiv.1410.3873,
title = {Controlling interactions between highly-magnetic atoms with Feshbach resonances},
author = {Svetlana Kotochigova},
journal= {arXiv preprint arXiv:1410.3873},
year = {2015}
}