Molecular Dynamics Simulations 2011. Exercise 8: Effect of cut-offradius and time step.Return by Tue 8.11. at 12:15, exercise session Thu 10.11. at 12:15.1. (10 p)Simulate a Cu FCC system with periodic boundary conditions ata temperature of 300 K for 10 ps usingmdmorse. Do the simulations withthe following values for the potential cut-off radius (rpotcutinmdmorse):rc= 4.0,4.5,5.0,6.0,8.0˚A. Investigate the energy conservation by calculat-ing the average fluctuation (variance or the like) in total energy. Rememberto skip say the first 200 time steps from the beginning of the simulation whencalculating any averages.Why do the fluctuations behave as they do as a function ofrc?Hint:Seethe figure below, where the pair correlation functiong(r) of Cu at 300 K is
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