# Implementation of the linear method for the optimization of Jastrow-Feenberg and backflow correlations

@article{Motta2015ImplementationOT, title={Implementation of the linear method for the optimization of Jastrow-Feenberg and backflow correlations}, author={Mario Motta and G. Bertaina and Davide Emilio Galli and Ettore Vitali}, journal={Comput. Phys. Commun.}, year={2015}, volume={190}, pages={62-71} }

Abstract We present a fully detailed and highly performing implementation of the Linear Method (Toulouse and 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…

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