All-optical production of a degenerate Fermi gas

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

All-optical production of a degenerate Fermi gas

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

Physics

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262 Scopus citations

Abstract

Direct evaporation in a CO₂ laser trap was done to achieve degeneracy in a mixture of the two lowest hyperfine states of ⁶Li, yielding the first all optically produced degenerate Fermi gas. Degeneracy was obtained by forced evaporation, accomplished by continuously lowering the trap depth and then adiabatically recompressing to full depth. The results achieved showed high evaporation efficiency χ ≡ ln(ρ_f/ρ_i)/ln(N_i/N_f).

Original language	English (US)
Article number	120405
Pages (from-to)	1204051-1204054
Number of pages	4
Journal	Physical review letters
Volume	88
Issue number	12
State	Published - Mar 25 2002

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Cite this

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title = "All-optical production of a degenerate Fermi gas",

abstract = "Direct evaporation in a CO2 laser trap was done to achieve degeneracy in a mixture of the two lowest hyperfine states of 6Li, yielding the first all optically produced degenerate Fermi gas. Degeneracy was obtained by forced evaporation, accomplished by continuously lowering the trap depth and then adiabatically recompressing to full depth. The results achieved showed high evaporation efficiency χ ≡ ln(ρf/ρi)/ln(Ni/Nf).",

author = "Granade, {S. R.} and Gehm, {M. E.} and O'Hara, {K. M.} and Thomas, {J. E.}",

year = "2002",

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language = "English (US)",

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journal = "Physical review letters",

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T1 - All-optical production of a degenerate Fermi gas

AU - Granade, S. R.

AU - Gehm, M. E.

AU - O'Hara, K. M.

AU - Thomas, J. E.

PY - 2002/3/25

Y1 - 2002/3/25

N2 - Direct evaporation in a CO2 laser trap was done to achieve degeneracy in a mixture of the two lowest hyperfine states of 6Li, yielding the first all optically produced degenerate Fermi gas. Degeneracy was obtained by forced evaporation, accomplished by continuously lowering the trap depth and then adiabatically recompressing to full depth. The results achieved showed high evaporation efficiency χ ≡ ln(ρf/ρi)/ln(Ni/Nf).

AB - Direct evaporation in a CO2 laser trap was done to achieve degeneracy in a mixture of the two lowest hyperfine states of 6Li, yielding the first all optically produced degenerate Fermi gas. Degeneracy was obtained by forced evaporation, accomplished by continuously lowering the trap depth and then adiabatically recompressing to full depth. The results achieved showed high evaporation efficiency χ ≡ ln(ρf/ρi)/ln(Ni/Nf).

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M3 - Article

C2 - 11909435

AN - SCOPUS:0037171208

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JO - Physical review letters

JF - Physical review letters

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ER -

All-optical production of a degenerate Fermi gas

Abstract

All Science Journal Classification (ASJC) codes

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