Page 1 of 1

Contribution of each atom to total energy-- is it possible ?

Posted: Fri Sep 08, 2006 5:56 am
by soumendu
Hi,
In self-consistent calculation in VASP, the total energy is written for each electronic iteration
in the OUTCAR file. Also contribution of different energies to the total energy is also written.
Is it possible to get the contribution of each atom to the total energy for each electronic iteration?


Soumendu

Contribution of each atom to total energy-- is it possible ?

Posted: Fri Sep 08, 2006 1:11 pm
by cpp6f
There is no such thing. The total energy is equal to the kinetic energy of the electrons + the coulombic energy. Electrons are not associated with a certain atom. Also, the coulombic energy is a sum of pair interactions, nothing that can be attributed to individual atoms. It is as nonsensical as asking for the contribution of each planet to the total energy of the solar system.