Advantageous nearsightedness of many-body perturbation theory contrasted with Kohn-Sham density functional theory

Jack Wetherell, Matthew Hodgson, Leopold Talirz +1

For properties of interacting electron systems, Kohn-Sham (KS) theory is often favored over many-body perturbation theory (MBPT) owing to its low computational cost. However, the e…