Efficient all-optical production of large [superscript 6]Li quantum gases using D[subscript 1] gray-molasses cooling
Name
PhysRevA.90.043408.pdf
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430.91 KB
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Author(s)
Burchianti, A.
Valtolina, G.
Seman, J. A.
De Pas, M.
Inguscio, M.
Zaccanti, M.
Roati, G.
Pace, Emilio A.
Date Issued
October 2014
Journal
Physical Review A
Publisher
American Physical Society
Citation
Burchianti, A., et al. "Efficient all-optical production of large [superscript 6]Li quantum gases using D[subscript 1] gray-molasses cooling." Phys. Rev. A 90, 043408 (October 2014). © 2014 American Physical Society
Version
Final published version
Abstract
We use a gray molasses operating on the D[subscript 1] atomic transition to produce degenerate quantum gases of [superscript 6]Li with a large number of atoms. This sub-Doppler cooling phase allows us to lower the initial temperature of 10[superscript 9] atoms from 500 to 40 μK in 2 ms. We observe that D[subscript 1] cooling remains effective into a high-intensity infrared dipole trap where two-state mixtures are evaporated to reach the degenerate regime. We produce molecular Bose-Einstein condensates of up to 5 × 10[superscript 5] molecules and weakly interacting degenerate Fermi gases of 7×10[superscript 5] atoms at T/T[subscript F] < 0.1 with a typical experimental duty cycle of 11 s.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
MIT-Harvard Center for Ultracold Atoms
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.90.043408
