The Hubbard model is the simplest model of interacting fermions on a lattice and is of similar
importance to correlated electron physics as the Ising model is to statistical mechanics or the …

For decades, frustrated quantum magnets have been a seed for scientific progress and
innovation in condensed matter. As much as the numerical tools for low-dimensional …

This review addresses the method of explicit calculations of interatomic exchange
interactions of magnetic materials. This involves exchange mechanisms normally referred to …

Ever since the discovery of high-temperature superconductivity in cuprates, gaining
microscopic insights into the nature of pairing in strongly correlated systems has remained …

The relationship between the pseudogap and underlying ground-state phases has not yet
been rigorously established. We investigated the doped two-dimensional Hubbard model at …

Understanding electronic properties that violate the Landau Fermi liquid paradigm in
cuprate superconductors remains a major challenge in condensed-matter physics. The …

A key to understanding unconventional superconductivity lies in unraveling the pairing
mechanism of mobile charge carriers in doped antiferromagnets, yielding an effective …

Transcorrelated methods provide an efficient way of partially transferring the description of
electronic correlations from the ground-state wave function directly into the underlying …

We review the electronic structure of nickelate superconductors with and without effects of
electronic correlations. As a minimal model, we identify the one-band Hubbard model for the …

We report a comprehensive study of magnetic correlations in LaNiO 2, a parent compound
of the recently discovered family of infinite-layer (IL) nickelate superconductors, using …