Molecular dynamics simulation of a 2D Lennard-Jones liquid

Demonstration

The potential between two particles is given by

V(r) = 4 (r⁻¹² − r⁻⁶),

where r is the distance between the two particles. The potential energy of the system is the sum of potentials from all pairs.

To reduce the finite-size effect, we have used the periodic boundary conditions, and the potential is truncated at half box size.