Stability of the Superfluid State in Three-Component Fermionic Optical Lattice Systems

Abstract

Three-component fermionic optical lattice systems are investigated in dynamical mean-field theory for the Hubbard model. Solving the effective impurity model by means of continuous-time quantum Monte Carlo simulations in the Nambu formalism, we find that the $s$-wave superfluid state proposed recently is indeed stabilized in the repulsively interacting case and appears along the first-order phase boundary between the metallic and paired Mott states in the paramagnetic system. The BCS-BEC crossover in the three-component fermionic system is also addressed.

8 pages, 10 figures

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• Finite Temperature Properties of Three-Component Fermion Systems in Optical Lattice
• Interplay between intrinsic and emergent topological protection on interacting helical modes
• 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
• Coexisting Néel and charge density wave orders in attractive three-color fermions
• Itinerant ferromagnetism in an SU(3) Fermi-Hubbard model at finite temperatures: A dynamical mean-field theory study
• Unit-density SU(3) Fermi-Hubbard Model with Spin Flavor Imbalance
• Generalized Nagaoka ferromagnetism accompanied by flavor-selective Mott states in an SU($N$) Fermi-Hubbard model
• Trion ordering in the attractive three-color Hubbard model on a $\pi$-flux square lattice