Temperature

The temperature in a molecular dynamics simulation is related to the average kinetic energy of the atoms in the simulation. The equipartition theorem says that each degree of freedom has the same kinetic energy,

where kB is the Boltzmann constant. For our simulation there are only 2 degrees of freedom (monatomic and 2 dimensional). Hence, the temperature is calculated by,

where N is the total number of atoms and mi and vi are the mass and velocity of atom i.


David Wolff
Last modified: Wed Sep 2 16:28:07 PDT 1998