Implementation of the Linear Method for the optimization of Jastrow-Feenberg and Backflow Correlations
Strongly Correlated Electrons
2015-05-20 v2
Abstract
We present a fully detailed and highly performing implementation of the Linear Method [J. Toulouse and C. J. Umrigar (2007)] to optimize Jastrow-Feenberg and Backflow Correlations in many-body wave-functions, which are widely used in condensed matter physics. We show that it is possible to implement such optimization scheme performing analytical derivatives of the wave-function with respect to the variational parameters achieving the best possible complexity O(N^3) in the number of particles N.
Cite
@article{arxiv.1412.0490,
title = {Implementation of the Linear Method for the optimization of Jastrow-Feenberg and Backflow Correlations},
author = {M. Motta and G. Bertaina and D. E. Galli and E. Vitali},
journal= {arXiv preprint arXiv:1412.0490},
year = {2015}
}
Comments
submitted to the Comp. Phys. Comm