Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2008-06-03
PRL 101, 203202 (2008)
Physics
Condensed Matter
Other Condensed Matter
Scientific paper
10.1103/PhysRevLett.101.203202
We report on the creation of a degenerate Fermi gas consisting of a balanced mixture of atoms in three different hyperfine states of $^6$Li. This new system consists of three distinguishable Fermions with different and tunable interparticle scattering lengths $a_{12}$, $a_{13}$ and $a_{23}$. We are able to prepare samples containing $5 \cdot 10^4$ atoms in each state at a temperature of about $215 $nK, which corresponds to $T/T_F \approx 0.37$. We investigated the collisional stability of the gas for magnetic fields between 0 and 600 G and found a prominent loss feature at 130 G. From lifetime measurements we determined three-body loss coefficients, which vary over nearly three orders of magnitude.
Jochim Selim
Kohnen M.
Lompe Thomas
Ottenstein Timo B.
Wenz Andre N.
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