TY - JOUR
AU - T. Loftus
AU - Cindy Regal
AU - C. Ticknor
AU - John Bohn
AU - Deborah Jin
AB - 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 Feshbach 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.
BT - Physical Review Letters
DA - 2002-04
DO - 10.1103/PhysRevLett.88.173201
N2 - 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 Feshbach 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.
PY - 2002
EP - 173201
T2 - Physical Review Letters
TI - Resonant Control of Elastic Collisions in an Optically Trapped Fermi Gas of Atoms
VL - 88
SN - 0031-9007
ER -