The Hubbard model represents the fundamental model for interacting quantum systems and
electronic correlations. Using the two-dimensional half-filled Hubbard model at weak …

The correlation functions of quantum systems—central objects in quantum field theories—
are defined in high-dimensional space-time domains. Their numerical treatment thus suffers …

We present and implement a parquet approximation within the dual-fermion formalism
based on a partial bosonization of the dual vertex function which substantially reduces the …

We present a decomposition of the two-particle vertex function of the single-band Anderson
impurity model which imparts a physical interpretation of the vertex in terms of the exchange …

Electron correlation in finite and extended systems is often described in an effective single-
particle framework within the GW approximation. Here, we use the statically screened …

The interaction of light with solids gives rise to new bosonic quasiparticles, with the exciton
being—undoubtedly—the most famous of these polaritons. While excitons are the generic …

Taking the competition and the mutual screening of various bosonic fluctuations in
correlated electron systems into account requires an unbiased approach to the many-body …

Correlated electron systems often show strong bosonic fluctuations, eg, of antiferromagnetic
nature, around a large wave vector such as q=(π, π...). These fluctuations can give rise to …

Victory, ie vienna computational tool depository, is a collection of numerical tools for solving
the parquet equations for the Hubbard model and similar many body problems. In the …

Strongly correlated physics arises due to electron-electron scattering within partially-filled
orbitals, and in this perspective, organic molecules in open-shell configuration are good …