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Selected Works of Olga Goulko
Article
Spin Drag of a Fermi Gas in a Harmonic Trap
Physical Review Letters (2013)
  • Olga Goulko, Ludwig Maximilians Universitaet Muenchen
  • Frederic Chevy, Ecole Normale Superieure de Paris
  • Carlos Lobo, University of Southampton
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Abstract
Using a Boltzmann equation approach, we analyze how the spin drag of a trapped interacting fermionic mixture is influenced by the non-homogeneity of the system in a classical regime where the temperature is much larger than the Fermi temperature. We show that for very elongated geometries, the spin damping rate can be related to the spin conductance of an infinitely long cylinder. We characterize analytically the spin conductance both in the hydrodynamic and collisionless limits and discuss the influence of the velocity profile. Our results are in good agreement with recent experiments and provide a quantitative benchmark for further studies of spin drag in ultracold gases.
Keywords
  • degenerate Fermi gases,
  • transport coefficients
Disciplines
Publication Date
November 8, 2013
DOI
10.1103/PhysRevLett.111.190402
Citation Information
Olga Goulko, Frederic Chevy and Carlos Lobo. "Spin Drag of a Fermi Gas in a Harmonic Trap" Physical Review Letters Vol. 111 Iss. 19 (2013) p. 190402
Available at: http://works.bepress.com/olga-goulko/13/