Electron momentum densities from QSGW and $G^0{W}^0$: Revealing the role of many-body effects within the reduced density matrix

A. D. N. James, J. A. Gould, T. M. Mason +2

The ground-state many-body electron momentum density, which can be probed by x-ray Compton scattering, holds insights into the electronic structure of materials. Comparisons betwee…