Abstract yambo is an open source project aimed at studying excited state properties of
condensed matter systems from first principles using many-body methods. As input, yambo …

Semiconductors composed of organic molecules are promising as components for flexible
and inexpensive optoelectronic devices, with many recent studies aimed at understanding …

We compute the zero-point renormalization (ZPR) of the optical band gap of diamond from
many-body perturbation theory using the perturbative G 0 W 0 approximation as well as …

We present an implementation of G 0 W 0 and eigenvalue-self-consistent GW (ev GW) in the
Gaussian and plane waves scheme for molecules. We calculate the correlation self-energy …

We present an all-electron, periodic G 0 W 0 implementation within the numerical atomic
orbital (NAO) basis framework. A localized variant of the resolution-of-the-identity (RI) …

Green's function theory has emerged as a powerful many-body approach not only in
condensed matter physics but also in quantum chemistry in recent years. We have …

Intermolecular singlet fission (SF) is the conversion of a photogenerated singlet exciton into
two triplet excitons residing on different molecules. SF has the potential to enhance the …

We present and benchmark a self-energy approach for quasiparticle energy calculations
that goes beyond Hedin's GW approximation by adding the full second-order self-energy …

A time-dependent formulation for electron-hole excitations in extended finite systems, based
on the Bethe-Salpeter equation (BSE), is developed using a stochastic wave function …

Organic molecular crystals are expected to feature appreciable electron-phonon interactions
that influence their electronic properties at zero and finite temperature. In this work, we report …