158 citations · 777 across the 35 of their papers we have counts for
3 papers · 1 filter
Many-body perturbation theory and non-perturbative approaches: the screened interaction as key ingredient
Walter Tarantino, Bernardo S. Mendoza, Pina Romaniello +2
Many-body perturbation theory is often formulated in terms of an expansion in the dressed instead of the bare Green's function, and in the screened instead of the bare Coulomb inte…
The self-consistent Dyson equation and self-energy functionals: failure or new opportunities?
Walter Tarantino, Pina Romaniello, J. A. Berger +1
Perturbation theory using self-consistent Green's functions is one of the most widely used approaches to study many-body effects in condensed matter. On the basis of general consid…
Optical properties of periodic systems within the current-current response framework: pitfalls and remedies
D. Sangalli, A. Berger, C. Attaccalite +2
We compare the optical absorption of extended systems using the density-density and current-current linear response functions calculated within many-body perturbation theory. The t…