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Resonant Control of Elastic Collisions in an Optically Trapped Fermi Gas of Atoms

Published

Author(s)

T Loftus, C A. Regal, J L. Ticknor, J L. Bohn, Deborah S. Jin

Abstract

We have loaded an ultracold gas of fermionic atoms into a far off resonance optical dipole trap and precisely controlled the spin composition of the trapped gas. We have measured a magnetic-field Fesh-bach resonance between atoms in the two lowest energy spin states, |9/2, -9/2 > and |9/2, -7/2>). The resonance peaks at a magnetic field of 201.5 1.4 G and has a width of 8.0 1.1 G. Using this resonance, we have changed the elastic collision cross section in the gas by nearly 3 orders of magnitude.
Citation
Physical Review Letters
Volume
88
Issue
No. 17

Keywords

Fermi gas, optical trap, ultracold atoms

Citation

Loftus, T. , Regal, C. , Ticknor, J. , Bohn, J. and Jin, D. (2002), Resonant Control of Elastic Collisions in an Optically Trapped Fermi Gas of Atoms, Physical Review Letters (Accessed June 13, 2024)

Issues

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Created April 1, 2002, Updated February 17, 2017