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Observation of Collective Atomic Recoil Motion in a Degenerate Fermion Gas

Published

Author(s)

Lu Deng, Edward W. Hagley

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

Keywords

fermion gas, light scattering by quantum gas

Citation

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 July 14, 2024)

Issues

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Created May 23, 2011, Updated November 10, 2018