Spontaneous separation of two-component Fermi gases in a double-well trap
arXiv:1105.0995 · doi:10.1209/0295-5075/94/60001
Abstract
The two-component Fermi gas in a double-well trap is studied using the density functional theory and the density profile of each component is calculated within the Thomas-Fermi approximation. We show that the two components are spatially separate in the two wells once the repulsive interaction exceeds the Stoner point, signaling the occurrence of the ferromagnetic transition. Therefore, the double-well trap helps to explore itinerant ferromagnetism in atomic Fermi gases, since the spontaneous separation can be examined by measuring component populations in one well.
6 pages, 6 figures, to appear in epl
References in corpus (10)
- Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
- Itinerant Ferromagnetism in a Fermi Gas of Ultracold Atoms
- Itinerant ferromagnetism of a repulsive atomic Fermi gas: a quantum Monte Carlo study
- Competition between pairing and ferromagnetic instabilities in ultracold Fermi gases near Feshbach resonances
- Itinerant ferromagnetism in an atomic Fermi gas: Influence of population imbalance
- Spin fluctuations, susceptibility and the dipole oscillation of a nearly ferromagnetic Fermi gas
- Spin drag in an ultracold Fermi gas on the verge of a ferromagnetic instability
- Itinerant Ferromagnetism in an Atom Trap
- Static properties and spin dynamics of the ferromagnetic spin-1 Bose gas in magnetic field
- Thermodynamic properties of the itinerant-boson ferromagnet