89 citations · 109 across the 2 of their papers we have counts for
3 papers
Optimized Gaussian exponents for Goedecker-Teter-Hutter pseudopotentials
Eeuwe S. Zijlstra, Nils Hunteman, Alan Kalitsov +2
We have optimized the exponents of Gaussian s and p basis functions for the elements H, B-F, and Al-Cl using the pseudopotentials of Goedecker, Teter, and Hutter [Phys. Rev. B 54,…
Conserving Approximations in Time-Dependent Density Functional Theory
Ulf von Barth, Nils Erik Dahlen, Robert van Leeuwen +1
In the present work we propose a theory for obtaining successively better approximations to the linear response functions of time-dependent density or current-density functional th…
Introduction to the Keldysh formalism and applications to time-dependent density-functional theory
Robert van Leeuwen, Nils Erik Dahlen, Gianluca Stefanucci +2
This paper gives an introduction to the Keldysh formalism, with emphasis on its usefulness in time-dependent density functional theory. In the first part we introduce the Keldysh c…