6 citations · 9 across the 5 of their papers we have counts for
Showing cond-mat.mtrl-sciShow all
3 papers · 1 filter
cond-mat.mtrl-sci2025
Functional theory of the occupied spectral density
Andrea Ferretti, Nicola Marzari
We address the problem of interacting electrons in an external potential by introducing the occupied spectral density as fundamental variable. First, we formulate…
cond-mat.mtrl-sci2023★ 6 cited
On Green's function embedding using sum-over-pole representations
Andrea Ferretti, Tommaso Chiarotti, Nicola Marzari
In Green's function theory, the total energy of an interacting many-electron system can be expressed in a variational form using the Klein or Luttinger-Ward functionals. Green's fu…
cond-mat.mtrl-sci2023
Energies and spectra of solids from the algorithmic inversion of dynamical Hubbard functionals
Tommaso Chiarotti, Andrea Ferretti, Nicola Marzari
Energy functionals of the Green's function can simultaneously provide spectral and thermodynamic properties of interacting electrons' systems. Though powerful in principle, these f…