% Lagrange interpolation for resampling% References:% [1] A digital signal processing approach to Interpolation% Ronald W. Schafer and Lawrence R. Rabiner% Proc. IEEE vol 61, pp.692-702, June 1973% [2] https://ccrma.stanford.edu/~jos/Interpolation/Lagrange_Interpolation.html% [3] Splitting...
The shifted wave functions ψα,I(stat)(r→−R→I,s) are obtained by interpolation on the grid. The interpolation is done by transforming to momentum space, applying translation factors, and going back. It is obvious that the collisions need a larger numerical box than the static Hartree...