Local Density Approximation (LDA) Assumption: No gradient of electron ... CC gives correct excitation energies for CT states (CT Singles naturally included) ...
Usually they are calculated within the Brillouin zone and along specific directions in reciprocal space For a complete discussion on reciprocal space vectors and ...
Section I: ab initio electronic structure methods ... There is no one 'best pseudopotential' for a given atom. ... physics.ncsu.edu do the following exercises: ...