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Quantum Chemistry
Linear-scaling quantum Monte Carlo calculations.
PubMed
Authors: Williamson AJ, Hood RQ, Grossman JC
Year
2001
Paper ID
13227
Status
Peer-reviewed
Abstract Read
~2 min
Abstract Words
78
Citations
N/A
Abstract
A method is presented for using truncated, maximally localized Wannier functions to introduce sparsity into the Slater determinant part of the trial wave function in quantum Monte Carlo calculations. When combined with an efficient numerical evaluation of these localized orbitals, the dominant cost in the calculation, namely, the evaluation of the Slater determinant, scales linearly with system size. This technique is applied to accurate total energy calculation of hydrogenated silicon clusters and carbon fullerenes containing 20-1000 valence electrons.
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- A method is presented for using truncated, maximally localized Wannier functions to introduce sparsity into the Slater determinant part of the trial wave function in quantum...
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