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Adaptive grids from DeMon #52

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susilehtola opened this issue Jul 3, 2023 · 0 comments
Open

Adaptive grids from DeMon #52

susilehtola opened this issue Jul 3, 2023 · 0 comments
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new-functionality Adds a capability to GauXC

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@susilehtola
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susilehtola commented Jul 3, 2023

J. Chem. Phys. 121, 681–690 (2004) describes an adaptive grid algorithm based on converging the diagonal Fock matrix elements to the specified threshold. The number of radial points is chosen by an semiempirical scheme, while the number of angular points is determined by trial and error.

An older algorithm in J. Chem. Phys. 108, 3226–3234 (1998) does the same for overlap matrices. This is useful in some use cases, but doesn't afford sufficient accuracy for Fock matrices.

@wavefunction91 wavefunction91 added the new-functionality Adds a capability to GauXC label Oct 25, 2023
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