Electronic excited-state wave functions for quantum Monte Carlo: Application to silane and methane

AR Porter, OK Al-Mushadani, MD Towler… - The Journal of …, 2001 - pubs.aip.org
We investigate the efficient construction of guiding wave functions for use in diffusion Monte
Carlo calculations of electronic excited states. We test guiding wave functions obtained from
singles-only configuration interaction, time-dependent density functional theory, and
complete active space self-consistent field methods. The techniques are used to study the
first ionization potentials and excited states of silane and methane.© 2001 American Institute
of Physics. DOI: 10.1063/1.1342765
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