The fundamental idea of the excitonic insulator (EI) driven by electron–hole correlations in
narrow-gap semiconductors or semimetals was originally proposed in the 1960s, and only …

We present a platform for quantum embedding methods, Portobello, which facilitates
efficient software development and ease of use by assimilating legacy electronic structure …

We investigate the phase diagram of the spin-orbit-coupled three orbital Hubbard model at
arbitrary filling by means of dynamical mean-field theory combined with the continuous-time …

The competition between spin-orbit coupling, bandwidth (W), and electron-electron
interaction (U) makes iridates highly susceptible to small external perturbations, which can …

We combine several numerical and semianalytical methods to study the 5 d double
perovskites Sr 2 YIrO 6 and Ba 2 YIrO 6, which were recently proposed to exhibit excitonic …

We analyze the stability of excitonic ground states in the two-band Hubbard model with
additional electron-phonon and Hund's rule couplings using a combination of mean-field …

We investigate the interplay of spin-orbit coupling, electronic correlations, and lattice
distortions in the 5 d 1 double perovskite Ba 2 MgReO 6. Combining density-functional …

The negative sign problem in quantum Monte Carlo (QMC) simulations of cluster impurity
problems is the major bottleneck in cluster dynamical mean-field calculations. In this paper …

We present a strategy to alleviate the sign problem in continuous-time quantum Monte Carlo
(CTQMC) simulations of the dynamical-mean-field-theory (DMFT) equations for the spin …

The ground-state phase diagrams of the three-orbital t 2 g Hubbard model are studied using
a Hartree-Fock approximation. First, a complete set of multipolar order parameters for t 2 g …