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 …

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 insulators represent a new quantum state of matter which is characterized by
peculiar edge or surface states that show up due to a topological character of the bulk wave …

We analyze a two-dimensional Kondo lattice model with special emphasis on non-Hermitian
properties of the single-particle spectrum, following a recent proposal by Kozii and Fu. Our …

In non-interacting systems, bands from non-trivial topology emerge strictly at half-filling and
exhibit either the quantum anomalous Hall or spin Hall effects. Here we show using …

We propose a new correlated topological state, which we call a higher-order topological
Mott insulator (HOTMI). This state exhibits a striking bulk-boundary correspondence due to …

We analyze a diamond-lattice Hubbard model with the spatially modulated Hubbard
interaction. Our dynamical mean-field analysis with special emphasis on non-Hermitian …

Quasi-particles described by Green's functions of equilibrium systems exhibit non-Hermitian
topological phenomena because of their finite lifetime. This non-Hermitian perspective on …

We investigate properties of a topological Mott insulator in one dimension by examining the
bulk topological invariant and the entanglement spectrum of a correlated electron model. We …

We investigate the role of electron-electron interaction in a two-band Hubbard model based
on the Bernevig-Hughes-Zhang Hamiltonian exhibiting the quantum spin Hall (QSH) effect …