Selective insulators and anomalous responses in correlated fermions with synthetic extra dimensions

Abstract

We study a three-component fermionic fluid in an optical lattice in a regime of intermediate-to- strong interactions allowing for Raman processes connecting the different components, similar to those used to create artificial gauge fields (AGF). Using Dynamical Mean-Field Theory we show that the combined effect of interactions and AGFs induces a variety of anomalous phases in which different components of the fermionic fluid display qualitative differences, i.e., the physics is flavor-selective. Remarkably, the different components can display huge differences in the correlation effects, measured by their effective masses and non-monotonic behavior of their occupation number as a function of the chemical potential, signaling a sort of selective instability of the overall stable quantum fluid.

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Cited by in corpus (23)

• Observation of antiferromagnetic correlations in an ultracold SU($N$) Hubbard model
• Flavour-selective localization in interacting lattice fermions via SU(N) symmetry breaking
• Collective Modes in Excitonic Magnets: Dynamical Mean-Field Study
• Interaction-resistant metals in multicomponent Fermi systems
• SU(3) Fermions on the Honeycomb Lattice at 1/3-Filling
• The dynamical vertex approximation for many-electron systems with spontaneously broken SU(2)-symmetry
• Topological chiral spin liquids and competing states in triangular lattice SU($N$) Mott insulators
• Cooper Triples in Attractive Three-Component Fermions: Implication for Hadron-Quark Crossover
• Many-body Physics of Ultracold Alkaline-Earth atoms with SU($N$)-symmetric interactions
• Fluctuations analysis of the spin susceptibility: Néel ordering revisited in dynamical mean field theory
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• Synthetic Hall tube of interacting fermions
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• Itinerant ferromagnetism in the repulsive Hubbard chain with anisotropic odd-wave attraction
• Non-Perturbative Feats in the Physics of Correlated Antiferromagnets
• Unit-density SU(3) Fermi-Hubbard Model with Spin Flavor Imbalance
• Competition between Neel, Haldane nematic, plaquette valence bond solid, and $(\pi ,\pi )$ valence bond solid phases in SU(N) analogs of $S=1$ square-lattice antiferromagnets
• Onset of charge incompressibility and Mott gaps in the Honeycomb-Lattice SU(4) Hubbard Model: Lessons for Twisted Bilayer Graphene systems