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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
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Correlations and pair formation in a repulsively interacting Fermi gas

Christian Sanner1, Edward J Su, Wujie Huang

  • 1MIT-Harvard Center for Ultracold Atoms, Research Laboratory of Electronics, and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

Physical Review Letters
|September 26, 2012
PubMed
Summary

Degenerate Fermi gases quenched into strong repulsion remain paramagnetic, contrary to predictions. Rapid decay into bound pairs prevents studying equilibrium phases, suggesting repulsive Fermi gases do not transition to a ferromagnetic phase.

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