All-Optical Production of a Degenerate Fermi Gas

S. R. Granade, M. E. Gehm, K. M. O'Hara, and J. E. Thomas
Phys. Rev. Lett. 88, 120405 – Published 8 March 2002
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Abstract

We achieve degeneracy in a mixture of the two lowest hyperfine states of 6Li by direct evaporation in a CO2 laser trap, yielding the first all optically produced degenerate Fermi gas. More than 105 atoms are confined at temperatures below 4μK at full trap depth, where the Fermi temperature for each state is 8μK. This degenerate two-component mixture is ideal for exploring mechanisms of superconductivity ranging from Cooper pairing to Bose-Einstein condensation of strongly bound pairs.

  • Received 19 November 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.120405

©2002 American Physical Society

Authors & Affiliations

S. R. Granade, M. E. Gehm, K. M. O'Hara, and J. E. Thomas

  • Physics Department, Duke University, Durham, North Carolina 27708-0305

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Vol. 88, Iss. 12 — 25 March 2002

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