Antiferromagnetic topological insulators in cold atomic gases

Abstract

We propose a spin-dependent optical lattice potential that realizes a three-dimensional antiferromagnetic topological insulator in a gas of cold, two-state fermions such as alkaline earths, as well as a model that describes the tight-binding limit of this potential. We discuss the physically observable responses of the gas that can verify the presence of this phase. We also point out how this model can be used to obtain two-dimensional flat bands with nonzero Chern number.

5 pages

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Cited by in corpus (19)

• Topological Bands for Ultracold Atoms
• Topological quantum matter with cold atoms
• Correlation effects in two-dimensional topological insulators
• Explicit derivation of duality between a free Dirac cone and quantum electrodynamics in (2+1) dimensions
• Composite Dirac liquids: parent states for symmetric surface topological order
• Topological antiferromagnetic phase in a correlated Bernevig-Hughes-Zhang model
• Probe of Three-Dimensional Chiral Topological Insulators in an Optical Lattice
• Shaping topological properties of the band structures in a shaken optical lattice
• Quantum phase transitions of a disordered antiferromagnetic topological insulator
• Symmetry-protected line nodes and Majorana flat bands in nodal crystalline superconductors
• Quantum criticality at the Chern-to-normal insulator transition
• Equilibrium currents in chiral systems with non-zero Chern number
• Topological Superconductivity without Proximity Effect
• Topological antiferromagnetic spin-density-wave phase in an extended Kondo lattice model
• ${\mathcal{Z}}_2$ classification for a novel antiferromagnetic topological insulating phase in three-dimensional topological Kondo insulator
• Topological quantum phase transition in Kane-Mele-Kondo lattice model
• Topological properties of magnetically ordered heavy-fermion systems in the presence of mirror symmetry
• Boundary states in the chiral symmetric systems with a spatial symmetry
• Non-Abelian Chern band in rhombohedral graphene multilayers