Energies of the first row atoms from quantum Monte Carlo
J. Chem. Phys. 126, 224110 (2007); doi:10.1063/1.2743972
Published 14 June 2007
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All-electron variational and diffusion quantum Monte Carlo calculations of the ground state energies of the first row atoms (from Li to Ne) are reported. The authors use trial wave functions of four types: single-determinant Slater-Jastrow wave functions, multideterminant Slater-Jastrow wave functions, single-determinant Slater-Jastrow wave functions with backflow transformations, and multideterminant Slater-Jastrow wave functions with backflow transformations. At the diffusion quantum Monte Carlo level and using their multideterminant Slater-Jastrow wave functions with backflow transformations, they recover 99% or more of the correlation energies for Li, Be, B, C, N, and Ne, 97% for O, and 98% for F.
©2007 American Institute of Physics
| History: | Received 28 March 2007; accepted 3 May 2007; published 14 June 2007 |
| Permalink: |
http://link.aip.org/link/?JCPSA6/126/224110/1 |
KEYWORDS and PACS
lithium,
beryllium,
boron,
carbon,
nitrogen,
neon,
oxygen,
fluorine,
Monte Carlo methods,
ground states,
wave functions
- 31.15.-p
Calculations and mathematical techniques in atomic and molecular physics excluding electron correlation calculations - YEAR: 2007
RELATED DATABASES
PUBLICATION DATA
0021-9606 (print)
1089-7690 (online)
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