Magneto-optical trapping of fermionic potassium atoms

Year: 1998

Authors: Cataliotti F.S., Cornell E.A., Fort C., Inguscio M., Marin F., Prevedelli M., Ricci L., Tino G.M.

Autors Affiliation: iv Florence, Dipartimento Fis, I-50125 Florence, Italy; Univ Florence, European Lan Nonlinear Spect, I-50125 Florence, Italy; Ist Nazl Fis Mat, I-50125 Florence, Italy; Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA; Univ Colorado, Dept Phys, Boulder, CO 80309 USA; Univ Trent, Dipartimento Fis, I-38050 Povo, Italy; Univ Naples Federico II, Dipartimento Sci Fis, I-80125 Naples, Italy.

Abstract: We have trapped K-40 in a vapor-cell magneto-optical trap starting from a natural abundance sample. This rare, weakly radioactive atom is a fermion. The number of trapped atoms is approximately 8000, with a density of similar to 10(8) atoms/cm(3). Contrary to what is observed for the other isotopes of potassium, our data indicate that temperatures lower than the Doppler-cooling limit can be reached for K-40. We discuss the interest of these results in view of possible experiments to study a degenerate Fermi gas. [S1050-2947(98)05601-7].

Journal/Review: PHYSICAL REVIEW A

Volume: 57 (2)      Pages from: 1136  to: 1138

KeyWords: Bose-einstein Condensation; Photoassociative Spectroscopy; K-39 Atoms; Vapor; Collisions
DOI: 10.1103/PhysRevA.57.1136

Citations: 63
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