@article{827,
  author = {T. Loftus and Cindy Regal and C. Ticknor and John Bohn and Deborah Jin},
  title = {Resonant Control of Elastic Collisions in an Optically Trapped Fermi Gas of Atoms},
  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 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.},
  year = {2002},
  journal = {Physical Review Letters},
  volume = {88},
  pages = {173201},
  month = {2002-04},
  issn = {0031-9007},
  doi = {10.1103/PhysRevLett.88.173201},
}