The Dissection Algorithm for the Second‐Born Self‐Energy
The Dissection Algorithm for the Second‐Born Self‐Energy
Here, an algorithm to efficiently compute the second‐Born self‐energy of many‐body perturbation theory is described. The core idea consists in dissecting the set of all four‐index Coulomb integrals into properly chosen subsets, thus avoiding to loop over those indices for which the Coulomb integrals are zero or negligible. The scaling …