222 citations · 2k across the 49 of their papers we have counts for
3 papers · 1 filter
Vertex corrections for positive-definite spectral functions of simple metals
Y. Pavlyukh, A. -M. Uimonen, G. Stefanucci +1
We present a systematic study of vertex corrections in the homogeneous electron gas at metallic densities. The vertex diagrams are built using a recently proposed positive-definite…
Partial self-consistency and analyticity in many-body perturbation theory: particle number conservation and a generalized sum rule
Daniel Karlsson, Robert van Leeuwen
We consider a general class of approximations which guarantees the conservation of particle number in many-body perturbation theory. To do this we extend the concept of -derivab…
The adiabatic strictly-correlated-electrons functional: kernel and exact properties
Giovanna Lani, Simone di Marino, Augusto Gerolin +2
We investigate a number of formal properties of the adiabatic strictly-correlated electrons (SCE) functional, relevant for time-dependent potentials and for kernels in linear respo…