59 citations · 138 across the 6 of their papers we have counts for
3 papers
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…
Diagrammatic expansion for positive spectral functions beyond GW: Application to vertex corrections in the electron gas
G. Stefanucci, Y. Pavlyukh, A. -M. Uimonen +1
We present a diagrammatic approach to construct self-energy approximations within many-body perturbation theory with positive spectral properties. The method cures the problem of n…
Angle-resolved time delay in photoemission
Jonas Wätzel, Andrey Moskalenko, Yaroslav Pavlyukh +1
We investigate theoretically the relative time delay of photoelectrons originating from different atomic subshells of noble gases. This quantity was measured via attosecond streaki…