Decay of an Ultracold Fermionic Lithium Gas near a Feshbach Resonance

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, W. Ketterle

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140 Scopus citations

Abstract

We studied the magnetic field dependence of the inelastic decay of an ultracold, optically trapped fermionic [Formula presented] gas of different spin compositions. The spin mixture of the two lowest hyperfine states showed two decay resonances at 550 and 680 G, consistent with the predicted Feshbach resonances for elastic [Formula presented]-wave collisions. The observed lifetimes of several hundred ms are much longer than the expected time for Cooper pair formation and the phase transition to superfluidity in the vicinity of the Feshbach resonance.

Original languageEnglish (US)
JournalPhysical review letters
Volume89
Issue number20
DOIs
StatePublished - 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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