Multilevel summation with B-spline interpolation for pairwise interactions in molecular dynamics simulations

What is it about?

When simulating a collection of atoms (or a galaxy of stars), it is usually necessary to compute the electrostatic (or gravitational) forces of one atom on another. This publication presents a fast method for doing the computation that combines all the best features of existing methods.

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Why is it important?

Fast methods for computing forces necessarily require approximation. The use of B-splines provides higher accuracy for the same computational effort.