Coordinate Descent Full Configuration Interaction.

Published

Journal Article

We develop an efficient algorithm, coordinate descent FCI (CDFCI), for the electronic structure ground-state calculation in the configuration interaction framework. CDFCI solves an unconstrained nonconvex optimization problem, which is a reformulation of the full configuration interaction eigenvalue problem, via an adaptive coordinate descent method with a deterministic compression strategy. CDFCI captures and updates appreciative determinants with different frequencies proportional to their importance. We show that CDFCI produces accurate variational energy for both static and dynamic correlation by benchmarking the binding curve of nitrogen dimer in the cc-pVDZ basis with 10-3 mHa accuracy. We also demonstrate the efficiency and accuracy of CDFCI for strongly correlated chromium dimer in the Ahlrichs VDZ basis and produce state-of-the-art variational energy.

Full Text

Duke Authors

Cited Authors

  • Wang, Z; Li, Y; Lu, J

Published Date

  • June 2019

Published In

Volume / Issue

  • 15 / 6

Start / End Page

  • 3558 - 3569

PubMed ID

  • 31042383

Pubmed Central ID

  • 31042383

Electronic International Standard Serial Number (EISSN)

  • 1549-9626

International Standard Serial Number (ISSN)

  • 1549-9618

Digital Object Identifier (DOI)

  • 10.1021/acs.jctc.9b00138

Language

  • eng