Some Hamiltonian situations
To clarify the models simulated, we first present
them as noise-free Hamiltonian systems.
These simulations make it possible to see the relative masses of
the particles, and the nature of the potential.
First we show a driver and piston both having identical mass m=1.
The piston is subjected to a constant force to the left, so its
trajectory, in the abscence of collisions, is a parabola.
Notice, when the driver and piston collide, that they
exchange horizontal velocities, as is standard for identical-mass
|Piston mass = 1, no thermalization