Spin Excitations in a Fermi Gas of Atoms

B. DeMarco, D. S. Jin

Research output: Contribution to journalArticlepeer-review


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 compared to the classical expectation. In addition, we observe a strong excitation energy dependence for this quantum statistical effect.

Original languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Issue number4
StatePublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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