Unitarity-limited elastic collision rate in a harmonically trapped Fermi gas

Journal Article (Journal Article)

We derive the elastic collision rate for a harmonically trapped Fermi gas in the extreme unitarity limit where the s-wave scattering cross section is [Formula Presented] with [Formula Presented] the relative momentum. The collision rate is given in the form [Formula Presented]—the product of a universal collision rate [Formula Presented] and a dimensionless function of the ratio of the temperature T to the Fermi temperature [Formula Presented] We find that I has a peak value of [Formula Presented] at [Formula Presented] [Formula Presented] for [Formula Presented] and [Formula Presented] for [Formula Presented] We estimate the collision rate for recent experiments on a strongly-interacting degenerate Fermi gas of atoms. © 2003 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Gehm, ME; Hemmer, SL; O’Hara, KM; Thomas, JE

Published Date

  • January 1, 2003

Published In

Volume / Issue

  • 68 / 1

Start / End Page

  • 4 -

Electronic International Standard Serial Number (EISSN)

  • 1094-1622

International Standard Serial Number (ISSN)

  • 1050-2947

Digital Object Identifier (DOI)

  • 10.1103/PhysRevA.68.011603

Citation Source

  • Scopus