Density functional theory

F. Bogár, F. Bartha, and N. H. March
Use of the differential virial theorem to estimate the spatial variation of the exchange-correlation force  in the ground states of the spherical atoms He and Be,
Physical Review A, 79(1), 014501(2009)

 

EC force
The exchange-correlation force for the Be atom from the fine-tuned HF density.

F. Bogár, F. Bartha, FA Bartha, MH March,
Pauli potential from Heilmann-Lieb electron density obtained by summing hydrogenic closed shell densities over entire bound state spectrum  
Phys. Rev. A 83, 014502 (2011)

HL-Pauli

Pauli potential from hydrogenic Heilmann-Lieb
electron density