Frequency and damping of the scissors mode of a Fermi gas

2007/09/30 by Georg M. Bruun, G. M. Bruun, H. Smith · 2 citations
Mathematics · Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic and Subatomic Physics Research #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Coupling (piping) #Fermi Gamma-ray Space Telescope #Fermi gas #Function (biology) #Limit (mathematics) #Materials science #Mathematical analysis #Mathematics #Mode (computer interface) #Physics #Quantum electrodynamics #Quantum mechanics #Statistical physics #Unitarity #cond-mat.other #cond-mat.stat-mech

paper · pdf · doi:10.1103/physreva.76.045602

published as Phys. Rev. A 76, 045602 (2007) · 4 pages, 2 figures

openalex publication_date 2007/10/24 · arxiv created 2007/10/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We calculate the frequency and damping of the scissors mode in a classical gas as a function of temperature and coupling strength. Our results show good agreement with the main features observed in recent measurements of the scissors mode in an ultracold gas of ⁶Li atoms. The comparison between theory and experiment involves no fitting parameters and thus allows an identification of nonclassical effects at and near the unitarity limit.

Citations

• Damping of hydrodynamic modes in a trapped Bose gas above the Bose-Einstein transition temperature
• Collective Excitations of a Degenerate Gas at the BEC-BCS Crossover

Cited by

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• Numerical solution of the Boltzmann equation for the collective modes of trapped Fermi gases