Pairing in a three component Fermi gas
arXiv:cond-mat/0603498 · doi:10.1103/PhysRevA.73.053606
Abstract
We consider pairing in a three-component gas of degenerate fermions. In particular, we solve the finite temperature mean-field theory of an interacting gas for a system where both interaction strengths and fermion masses can be unequal. At zero temperature we find a a possibility of a quantum phase transition between states associated with pairing between different pairs of fermions. On the other hand, finite temperature behavior of the three-component system reveals some qualitative differences from the two-component gas: for a range of parameters it is possible to have two different critical temperatures. The lower one corresponds to a transition between different pairing channels, while the higher one corresponds to the usual superfluid-normal transition. We discuss how these phase transitions could be observed in ultracold gases of fermionic atoms.
10 pages, 3 figures
References in corpus (7)
- Vortices and Superfluidity in a Strongly Interacting Fermi Gas
- Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
- Collective excitations of a degenerate gas at the BEC-BCS crossover
- Ultracold fermions and the SU(N) Hubbard model
- BCS pairing in Fermi systems with several flavors
- Realization and Detection of Fulde-Ferrell-Larkin-Ovchinnikov Superfluid Phases in Trapped Atomic Fermion Systems
- Boundary effect of deterministic dense coding
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