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cond-mat.str-el2025
Self-consistent dynamical Hubbard functional for correlated solids
Tommaso Chiarotti, Matteo Quinzi, Andrea Pintus +3
Many-body functionals of the Green's function can provide fundamental advances in electronic-structure calculations, due to their ability to accurately predict both spectral and th…
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…