Author

Augustin Bussy

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Preprint Aug 2026

Randomized Block Davidson Eigensolvers for Plane-Wave Density-Functional Theory

Iterative diagonalization is the dominant cost of plane-wave density-functional theory (DFT), with search-space orthogonalization scaling particularly quickly with problem size and the number of target states. We present a randomized block Davidson-type eigensolver that replaces Euclidean orthogonalization with randomi...

Moritz Gubler, Taejun Park, Augustin Bussy et al. · 1 citation

Review Jul 2026

CP2K: An electronic structure and molecular dynamics software package - Dynamics, Transport, and Spectroscopic Response

The present work revisits the methods within CP2K that turn electronic structure into dynamics, transport, and spectroscopic response, highlighting CP2K's unique capability to unify quantum chemistry with quantum and statistical mechanics within a versatile, holistic simulation environment.

Jan Wilhelm, Anna-Sophia Hehn, Hossam Elgabarty et al. · 1 citation · ⚡1