and is a type of interatomic potential. The energy is a function of a sum of functions of the separation between an atom and its neighbors. In the original model, by Murray Daw and Mike Baskes, the latter functions represent the electron density.
The energy in an interatomic potential model is determined by a sum of functions, which represent the electron density of each atom and its surrounding neighbors. This model was originally developed by Murray Daw and Mike Baskes.