Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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 April 19, 2024)
Created May 23, 2011, Updated November 10, 2018