The discovery of the quantum spin Hall effect and topological insulators more than a decade
ago has revolutionized modern condensed matter physics. Today, the field of topological …

We present a theory of the superfluid weight in multiband attractive Hubbard models within
the Bardeen-Cooper-Schrieffer (BCS) mean-field framework. We show how to separate the …

Band topology is traditionally analyzed in terms of gauge-invariant observables associated
with crystalline Bloch wave functions. Recent work has demonstrated that many of the free …

Using dynamical mean-field theory and exact diagonalization we study the phase diagram
of the repulsive Haldane-Hubbard model, varying the interaction strength and the sublattice …

We present a general review of the projective symmetry group classification of fermionic
quantum spin liquids for lattice models of spin S= 1/2. We then introduce a systematic …

The joint action of a magnetic field and of interactions is crucial for the appearance of exotic
quantum phenomena, such as the quantum Hall effect. Owing to their rich nuclear structure …

Motivated by cold atom experiments on Chern insulators, we study the honeycomb lattice
Haldane-Hubbard Mott insulator of spin-1/2 fermions using exact diagonalization and …

We study the interplay of topological band structure and conventional magnetic long-range
order in spinful Haldane model with on-site repulsive interaction. Using the dynamical …

In this Rapid Communication we study the Haldane model with on-site repulsive interactions
at half-filling. We show that the mean-field Hamiltonian with magnetic order effectively …

The triangular lattice Hubbard model at strong coupling, whose effective spin model
contains both Heisenberg and ring exchange interactions, exhibits a rich phase diagram as …