Co-existence and shell structures of several superfluids in trapped three-component Fermi mixtures

Abstract

We study the properties of a trapped interacting three component Fermi gas. We assume that one of the components can have a different mass from the other two. We calculate the different phases of the three component mixture and find a rich variety of different phases corresponding to different pairing channels, and simple ways of tuning the system from one phase to another. In particular, we predict co-existence of several different superfluids in the trap, forming a shell structure, and phase transitions from this mixture of superfluids to a single superfluid when the system parameters or temperature is varied. Such shell structures realize superfluids with a non-trivial spatial topology and leave clear observable signatures in the density profile of the gas.

4 pages, 4 figures

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Cited by in corpus (13)

• Collisional stability of a three-component degenerate Fermi gas
• Energetics and Structural Properties of Trapped Two-Component Fermi Gases
• Mixtures of ultracold fermions with unequal masses
• Efimov effect from functional renormalization
• Functional renormalization for trion formation in ultracold fermion gases
• Multi-component strongly attractive Fermi gas: a color superconductor in a one-dimensional harmonic trap
• Phase diagram, extended domain walls, and soft collective modes in a three component fermionic superfluid
• Asymmetric Fermi superfluid with different atomic species in a harmonic trap
• Competing Orders in One-Dimensional Half-Integer Fermionic Cold Atoms: A Conformal Field Theory Approach
• Induced interactions for ultracold Fermi gases in optical lattices
• Stability of Inhomogeneous Multi-Component Fermi Gases
• Trap-imbalanced fermion mixtures
• Temperature Effects in a Fermi Gas with Population Imbalance