See jõud matkib Lennard-Jonesi potentsiaali. Sel jõul on kolm parameetrit:

- depth: The minimum value of the Lennard-Jones potential well
- rmin: The distance from the origin to the minimum of the potential
- cutoff: The distance, where the Lennard-Jones (LJ) potential is often truncated to save computational time

Need parameetrid on empiirilised ning saadakse tavaliselt katsest või ligikaudsest hinnangust.