A Point-Charge Force Field for Molecular Mechanics. Polarizable force fields Currently, CP2K only have support for Class I type force fields such as AMBER, …. A comprehensive environment for property prediction and force field. Force field LAMMPS Gibbs ensemble. – Polarizable forcefields. Molecular Dynamics Simulations. Professor Albert C. Installing/Running LAMMPS • Settings – Force field coefficients • Bond coeff • Angle coeff.