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Phys. Rev. Lett. 100, 143201 (2008) [4 pages]

Collisional Stability of Fermionic Feshbach Molecules

J. J. Zirbel, K.-K. Ni, S. Ospelkaus, J. P. D'Incao, C. E. Wieman, J. Ye, and D. S. Jin
JILA, Quantum Physics Division, National Institute of Standards and Technology and the Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA
Received 11 October 2007; published 8 April 2008

Using a Feshbach resonance, we create ultracold fermionic molecules starting from a Bose-Fermi atom gas mixture. The resulting mixture of atoms and weakly bound molecules provides a rich system for studying few-body collisions because of the variety of atomic collision partners for molecules; either bosonic, fermionic, or distinguishable atoms. Inelastic loss of the molecules near the Feshbach resonance is dramatically affected by the quantum statistics of the colliding particles and the scattering length. In particular, we observe a molecule lifetime as long as 100 ms near the Feshbach resonance.

©2008 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.100.143201
DOI: 10.1103/PhysRevLett.100.143201
PACS: 34.50.-s; 05.30.Jp; 05.30.Fk
  • 34.50.-s
    Scattering of atoms and molecules
  • 05.30.Jp
    Boson systems (quantum statistical mechanics)
  • 05.30.Fk
    Fermion systems and electron gas (quantum statistical mechanics)
  • YEAR: 2008

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