Investigation of the Au16 fullerene in the Hubbard model

The anticommutator Green’s functions, the thermodynamic averages characterizing the possibility of hopping electrons from site to site, the correlation functions describing the probability of occupation of one site by two electrons in a nanosystem, the ground-state energy for a closed atomic structure consisting of sixteen gold atoms, the ionization energies, and the electron affinities are calculated within the static-fluctuation approximation of the Hubbard model.