Hi, I am trying to simulate an infinite lattice and for that II have used pbc.

However, when I look at the unwrapped atom coordinates (of a particle moving in this lattice), the trajectory suddenly jumps after xi~1024*L_i where L is the box size (in that dimension).

Thus I am restricted to trajectories where x<1024L. Is there a limit on the number of particle images? it seems to me that 1024*L{box} is some kind of limit.

i need to get around this limit, as i am looking at the long time Mean-Squared displacement. I need the dimensionless MSD, so scaling everything down doesnâ€™t help as the limit is proportional to the box size.

PS: Currently I am simulating only one lattice point and then using pbc to replicate the lattice, I can do the same simulation by having more lattice points thus increasing L (box size), but this is more complicated.