2 papers
physics.chem-ph2026
reduced density matrix from iterated linearized Dyson equation
Fabien Bruneval, Erik Verzijl, Arno Förster +1
Iterating the Dyson equation with the static part of the self-energy leads to a concise and possibly improved expression of the one-body reduced density matrix from any self-energy…
physics.chem-ph2026
Static Effective Hamiltonians for Molecular Systems through RPA-based Downfolding
Erik Verzijl, Arno Förster, Arno Förster
Green's function-based downfolding methods construct effective Hamiltonians of reduced dimension that capture dynamical correlations of an electronic environment through effective…