Superfluid state of repulsively interacting three-component fermionic atoms in optical lattices

Abstract

We investigate the superfluid state of repulsively interacting three-component (color) fermionic atoms in optical lattices. When the anisotropy of the three repulsive interactions is strong, atoms of two of the three colors form Cooper pairs and atoms of the third color remain a Fermi liquid. An effective attractive interaction is induced by density fluctuations of the third-color atoms. This superfluid state is stable against changes in filling close to half filling. We determine the phase diagrams in terms of temperature, filling, and the anisotropy of the repulsive interactions.

5 pages, 6 figures

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• Superconductivity in the two-band Hubbard model
• SU(3) Fermions on the Honeycomb Lattice at 1/3-Filling
• Artificial $SU(3)$ Spin-Orbit Coupling and Exotic Mott Insulators
• Finite Temperature Phase Transitions in the SU$(N)$ Hubbard model
• Spontaneously symmetry breaking states in the attractive SU$(N)$ Hubbard model
• Stability of the Superfluid State in Three-Component Fermionic Optical Lattice Systems
• Exact eigenstates of multicomponent Hubbard models: SU($N$) magnetic $\eta$ pairing, weak ergodicity breaking, and partial integrability
• Superfluid, staggered state, and Mott insulator of repulsively interacting three-component fermionic atoms in optical lattices
• Superconductivity enhanced by pair fluctuations between wide and narrow bands
• Finite Temperature Properties of Three-Component Fermion Systems in Optical Lattice
• Pairing enhanced by local orbital fluctuations in a model for monolayer FeSe
• Quantum Monte Carlo simulations of thermodynamic properties of attractive SU($3$) Dirac fermions
• Mott Transitions and Staggered Orders in the Three-component Fermionic System: Variational Cluster Approach
• Controlled pairing symmetry of the superfluid state in systems of three-component repulsive fermionic atoms in optical lattices
• Finite-momentum and field-induced pairings in orbital-singlet spin-triplet superconductors
• d_{xy}-Density wave in fermion-fermion cold atom mixtures
• Three-body losses of repulsively interacting three-component fermionic atoms in optical lattices