Collisional stability of fermionic Feshbach molecules

Details Collisional stability of fermionic Feshbach molecules Collisional stability of fermionic Feshbach molecules

2007-10-12

arxiv.org/abs/0710.2479v2

Phys. Rev. Lett. 100, 143201 (2008)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures, 1 table

Scientific paper

10.1103/PhysRevLett.100.143201

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.

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