Simulation of the total energy of a triatomic silicon cluster in the first order of perturbation theory
Abstract
As part of a new approach to calculating the total energy of a diatomic molecule (cluster), it is shown that in the first order of perturbation theory, the total energy of a triatomic cluster is equal to the sum of the total energies of the diatomic clusters (molecules). If all three aluminum atoms are in the ground state of Al(2p), then the quantum of energy of collective electron oscillations (plasmon energy) in each of the diatomic clusters (molecules) is eV (electron volts).
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