Browsing by Author "Berghold, Gerd"

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    Towards very large scale DFT electronic structure calculations
    (2001) Berghold, Gerd; Parrinello, Michele (Prof. Dr.)
    DFT electronic structure calculations have proven their usefulness for a wide range of systems. However, the computational demands prohibit their application to systems containing more than a few hundred of atoms. Since many systems of practical interest, e.g. biomolecules and nanostructures, exceed by far the hundred atom regime, it is crucial to develop new algorithms which reduce the computational cost. In this context, the following methods are presented: Grid-free DFT implementation of local and gradient-corrected XC functionals, electrostatic decoupling of periodic systems, general and efficient algorithms for obtaining maximally-localized Wannier functions and polarized atomic orbitals for linear scaling methods.