Spin Excitations in a Fermi Gas of Atoms

Details Spin Excitations in a Fermi Gas of Atoms Spin Excitations in a Fermi Gas of Atoms

2001-09-05

arxiv.org/abs/cond-mat/0109098v2

Physics

Condensed Matter

Statistical Mechanics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.88.040405

We have experimentally investigated a spin excitation in a quantum degenerate Fermi gas of atoms. In the hydrodynamic regime the damping time of the collective excitation is used to probe the quantum behavior of the gas. At temperatures below the Fermi temperature we measure up to a factor of 2 reduction in the excitation damping time. In addition we observe a strong excitation energy dependence for this quantum statistical effect.

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