2024/11/05 by Maria-Andreea Filip, Filip, Maria-Andreea, Pablo López Ríos +9 · 1 citation
Engineering · #Aluminum Alloy Microstructure Properties #Metallurgy and Material Forming
paper · pdf · doi:10.48550/arxiv.2411.03175
We explore the applicability of the transcorrelated method to the elements in the second row of the periodic table. We use transcorrelated Hamiltonians in conjunction with full configuration interaction quantum Monte Carlo and coupled cluster techniques to obtain total energies and ionisation potentials, investigating their dependence on the nature and size of the basis sets used. Transcorrelation accelerates convergence to the complete basis set limit relative to conventional approaches, and chemically accurate results can generally be obtained with the cc-pVTZ basis, even with a frozen Ne core in the post-Hartree--Fock treatment.