Topological insulators have become one of the most active research areas in condensed
matter physics. This article reviews progress on the topic of electronic correlation effects in …

Topological insulator phases of non-interacting particles have been generalized from
periodic crystals to amorphous lattices, which raises the question whether topologically …

Topological insulators present a bulk gap, but allow for dissipationless spin transport along
the edges. These exotic states are characterized by the Z2 topological invariant and are …

The two-dimensional Hubbard model defined for topological band structures exhibiting a
quantum spin Hall effect poses fundamental challenges in terms of phenomenological …

Motivated by experimental progress in the growth of heavy transition metal oxides, we
theoretically study a class of lattice models of interacting fermions with strong spin-orbit …

We study the quantum entanglement of the spin and orbital degrees of freedom in the one-
dimensional Kugel-Khomskii model, which includes both gapless and gapped phases …

We theoretically study topological phase transitions in four generalized versions of the Kane-
Mele-Hubbard model with up to 2× 18 2 sites. All models are free of the fermion-sign …

The adiabatic insertion of a π flux into a quantum spin Hall insulator gives rise to localized
spin and charge fluxon states. We demonstrate that π fluxes can be used in exact quantum …

A time-reversal invariant Kitaev-type model is introduced in which spins (Dirac matrices) on
the square lattice interact via anisotropic nearest-neighbor and next-nearest-neighbor …

We study a spin-orbital model for 4 d 1 or 5 d 1 Mott insulators in ordered double perovskites
with strong spin-orbit coupling. This model is conveniently written in terms of pseudospin …