Production of Long-Lived UltracoldLi2Molecules from a Fermi Gas

2003/08/01 by J. Cubizolles, Thomas Bourdel, T. Bourdel +3 · 3 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat

paper · pdf · doi:10.1103/physrevlett.91.240401

arxiv created 2003/08/01 · openalex publication_date 2003/12/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We create weakly bound Li2 molecules from a degenerate two component Fermi gas by sweeping a magnetic field across a Feshbach resonance. The atom-molecule transfer efficiency can reach 85% and is studied as a function of magnetic field and initial temperature. The bosonic molecules remain trapped for 0.5 s and their temperature is within a factor of 2 from the Bose-Einstein condensation temperature. A thermodynamical model reproduces qualitatively the experimental findings.

Citations

• Dynamics of collapsing and exploding Bose–Einstein condensates
• Radio-Frequency Spectroscopy of Ultracold Fermions
• Resonance Superfluidity in a Quantum Degenerate Fermi Gas

Cited by

• Prospects of forming ultracold molecules in2Σstates by magnetoassociation of alkali-metal atoms with Yb
• Strongly interacting fermions in an optical lattice
• Gaussian phase-space representations for fermions