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Magneto-Optical Trapping of Fermionic Potassium Atoms



F S. Cataliotti, Eric A. Cornell, C Fort, M Inguscio, F Marin, M Prevedelli, G M. Tino


We have trapped 40K 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 approximately equal to} 108 atoms/cm3. Contrary to what observed for the other isotopes of potassium, our data indicate that temperatures lower than the Doppler-cooling limit can be reached for 40K. We discuss the interest of these results in view of possible experiments to study a degenerate Fermi gas.
Physical Review A (Atomic, Molecular and Optical Physics)
No. 2


Fermions, magneto-optical traps, potassium-40


Cataliotti, F. , Cornell, E. , Fort, C. , Inguscio, M. , Marin, F. , Prevedelli, M. and Tino, G. (1998), Magneto-Optical Trapping of Fermionic Potassium Atoms, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed April 21, 2024)
Created January 31, 1998, Updated October 12, 2021