Deng, L.
and Hagley, E.
(2011),
Observation of Collective Atomic Recoil Motion in a Degenerate Fermion Gas, Physical Review Letters, [online], https://doi.org/10.1103/PhysRevLett.106.210401 (Accessed April 28, 2026)
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Observation of Collective Atomic Recoil Motion in a Degenerate Fermion Gas
Published
Author(s)
,
Abstract
We demonstrate collective atomic recoil motion with a dilute, ultracold, degenerate fermion gas in a single spin state. By utilizing an adiabatically decompressed magnetic trap with an aspect ratio different from that of the initial trap, a momentum-squeezed fermion cloud is achieved.With a single pump pulse of the proper polarization, we observe, for the first time, multiple wave-mixing processes that result in distinct collective atomic recoil motion modes in a degenerate fermion cloud. Contrary to the case with Bose condensates, no pump-laser detuning asymmetry is present.Citation
Physical Review Letters
Volume
106
Issue
21
Pub Type
Journals
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Keywords
fermion gas, light scattering by quantum gas
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Created May 23, 2011, Updated November 10, 2018