@article {23, title = {Communication: A difference density picture for the self-consistent field ansatz}, journal = {J. Chem. Phys.}, volume = {144}, year = {2016}, pages = {131101}, chapter = {131101}, doi = {https://doi.org/10.1063/1.4945277}, url = {https://aip.scitation.org/doi/abs/10.1063/1.4945277}, author = {Parrish, Robert M and Liu, Fang and Todd J. Mart{\'\i}nez} }