Iacovella, Christopher R. (2006). Weeks-Chandler-Andersen potential (WCA). Glotzer group. Depts of Chemical Engineering, Materials Science & Engineering, Macromolecular Science, and Physics, University of Michigan.
The Weeks-Chandler-Andersen potential (WCA) is a short range, purely repulsive interaction potential. It is meant to model excluded volume interaction and short range
repulsion.