Stability of the superfluid state in three-component fermionic optical lattice systems

Yuki Okanami, Nayuta Takemori, Akihisa Koga

Research output: Contribution to journalArticle

8 Citations (Scopus)

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 a first-order phase boundary between metallic and paired Mott states in the paramagnetic system. The BCS-BEC (Bose-Einstein condensation) crossover in the three-component fermionic system is also addressed.

Original languageEnglish
Article number053622
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume89
Issue number5
DOIs
Publication statusPublished - May 21 2014
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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