Trapping Ultracold Dysprosium: A Highly Magnetic Gas for Dipolar Physics
Abstract
Ultracold dysprosium gases, with a magnetic moment 10 times that of alkali atoms and equal only to terbium as the most magnetic atom, are expected to exhibit a multitude of fascinating collisional dynamics and quantum dipolar phases, including quantum liquid crystal physics. We report the first laser cooling and trapping of half a billion Dy atoms using a repumper-free magneto-optical trap (MOT) and continuously loaded magnetic confinement, and we characterize the trap recycling dynamics for bosonic and fermionic isotopes. The first inelastic collision measurements in the few partial wave, 100μK-1mK, regime are made in a system possessing a submerged open electronic f shell. In addition, we observe unusual stripes of intra-MOT <10μK sub-Doppler cooled atoms.
- Publication:
-
Physical Review Letters
- Pub Date:
- February 2010
- DOI:
- arXiv:
- arXiv:0912.0050
- Bibcode:
- 2010PhRvL.104f3001L
- Keywords:
-
- 37.10.De;
- 37.10.Gh;
- 37.10.Vz;
- 71.10.Ay;
- Atom cooling methods;
- Atom traps and guides;
- Mechanical effects of light on atoms molecules and ions;
- Fermi-liquid theory and other phenomenological models;
- Physics - Atomic Physics;
- Condensed Matter - Quantum Gases;
- Quantum Physics
- E-Print:
- 4+ pages, 4 figures