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Phys. Rev. Lett. 96, 150404 (2006) [4 pages]

Trapped Fermions with Density Imbalance in the Bose-Einstein Condensate Limit

P. Pieri and G. C. Strinati
Dipartimento di Fisica, Università di Camerino, I-62032 Camerino, Italy
Received 14 December 2005; published 21 April 2006

We analyze the effects of imbalancing the populations of two-component trapped fermions, in the Bose-Einstein condensate limit of the attractive interaction between different fermions. Starting from the gap equation with two fermionic chemical potentials, we derive a set of coupled equations that describe composite bosons and excess fermions. We include in these equations the processes leading to the correct dimer-dimer and dimer-fermion scattering lengths. The coupled equations are then solved in the Thomas-Fermi approximation to obtain the density profiles for composite bosons and excess fermions, which are relevant to the recent experiments with trapped fermionic atoms.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.96.150404
DOI: 10.1103/PhysRevLett.96.150404
PACS: 03.75.Hh; 03.75.Ss
  • 03.75.Hh
    Static properties of Bose-Einstein condensates; thermodynamical, statistical, and structural properties
  • 03.75.Ss
    Degenerate Fermi gases
  • YEAR: 2006
KEYWORDS: Bose-Einstein condensation, composite fermions, Thomas-Fermi model

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