Effects of backflow correlation in the three-dimensional electron gas: Quantum Monte Carlo study
Effects of backflow correlation in the three-dimensional electron gas: Quantum Monte Carlo study
The correlation energy of the homogeneous three-dimensional interacting electron gas is calculated using the variational and fixed-node diffusion Monte Carlo methods, with trial functions that include backflow and three-body correlations. In the high-density regime ${(r}_{s}<~5)$ the effects of backflow dominate over those due to three-body correlations, but the relative importance …