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Resolutions of the Coulomb Operator: VII. Evaluation of Long-Range Coulomb and Exchange Matrices
Taweetham Limpanuparb1,2, Josh Milthorpe1, Alistair P Rendell1
1Research School of Computer Science, Australian National University, ACT 0200, Australia.
Abstract:
Use of the resolution of Ewald operator method for computing long-range Coulomb and exchange interactions is presented. We show that the accuracy of this method can be controlled by a single parameter in a manner similar to that used by conventional algorithms that compute two-electron integrals. Significant performance advantages over conventional algorithms are observed, particularly for high quality basis sets and globular systems. The approach is directly applicable to hybrid density functional theory.
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