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arXiv · 1401.5610

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

Yuki Okanami·Nayuta Takemori·Akihisa Koga
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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.

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Yuki Okanami, Nayuta Takemori, Akihisa Koga. 2014-01-22. Stability of the Superfluid State in Three-Component Fermionic Optical Lattice Systems. https://doi.org/10.1103/physreva.89.053622

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