Overview

Physics of the simulation

We can evolve the particle system, (according to some dynamical equations like Newton's equations) with time by looping through the following steps:

1. Accumulate the forces on each particle: This is carried out using force calculators, which are methods of class Physics
2. Step forward one time step using a standard differential equation solver: This is carried out using various integrators, which are methods of class Physics
3. If desired, write the state of particle system to a file (for analysis or rendering)

The physics of the simulation is handled by classes Physics, Langevin_Dynamics