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

Publication ,  Journal Article
Gehm, ME; Hemmer, SL; O’Hara, KM; Thomas, JE
Published in: Physical Review A - Atomic, Molecular, and Optical Physics
January 1, 2003
Published version (DOI)

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.

Duke Scholars

Michael E. Gehm
Author Michael E. Gehm Electrical and Computer Engineering
John E. Thomas
Author John E. Thomas Physics

Published In

Physical Review A - Atomic, Molecular, and Optical Physics

DOI

10.1103/PhysRevA.68.011603

EISSN

1094-1622

ISSN

1050-2947

Publication Date

January 1, 2003

Volume

68

Issue

1

Start / End Page

4

Related Subject Headings

  • General Physics
  • 03 Chemical Sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Gehm, M. E., Hemmer, S. L., O’Hara, K. M., & Thomas, J. E. (2003). Unitarity-limited elastic collision rate in a harmonically trapped Fermi gas. Physical Review A - Atomic, Molecular, and Optical Physics, 68(1), 4. https://doi.org/10.1103/PhysRevA.68.011603
Gehm, M. E., S. L. Hemmer, K. M. O’Hara, and J. E. Thomas. “Unitarity-limited elastic collision rate in a harmonically trapped Fermi gas.” Physical Review A - Atomic, Molecular, and Optical Physics 68, no. 1 (January 1, 2003): 4. https://doi.org/10.1103/PhysRevA.68.011603.
Gehm ME, Hemmer SL, O’Hara KM, Thomas JE. Unitarity-limited elastic collision rate in a harmonically trapped Fermi gas. Physical Review A - Atomic, Molecular, and Optical Physics. 2003 Jan 1;68(1):4.
Gehm, M. E., et al. “Unitarity-limited elastic collision rate in a harmonically trapped Fermi gas.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 68, no. 1, Jan. 2003, p. 4. Scopus, doi:10.1103/PhysRevA.68.011603.
Gehm ME, Hemmer SL, O’Hara KM, Thomas JE. Unitarity-limited elastic collision rate in a harmonically trapped Fermi gas. Physical Review A - Atomic, Molecular, and Optical Physics. 2003 Jan 1;68(1):4.

Published In

Physical Review A - Atomic, Molecular, and Optical Physics

DOI

10.1103/PhysRevA.68.011603

EISSN

1094-1622

ISSN

1050-2947

Publication Date

January 1, 2003

Volume

68

Issue

1

Start / End Page

4

Related Subject Headings

  • General Physics
  • 03 Chemical Sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences