Information Entropy, Information Distances and Complexity in Atoms

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dc.creatorChatzisavvas, K. Ch.
dc.creatorMoustakidis, Ch. C.
dc.creatorPanos, C. P.
dc.date2005-07-04
dc.date2005-09-26
dc.date.accessioned2026-07-07T06:22:24Z
dc.date.available2026-07-07T06:22:24Z
dc.descriptionShannon information entropies in position and momentum spaces and their sum are calculated as functions of Z (Z=2-54) in atoms. Roothaan-Hartree-Fock electron wave functions are used. The universal property S=a+b lnZ is verified. In addition, we calculate the Kullback-Leibler relative entropy, the Jensen-Shannon divergence, Onicescu's information energy and a complexity measure recently proposed. Shell effects at closed shells atoms are observed. The complexity measure shows local minima at the closed shells atoms indicating that for the above atoms complexity decreases with respect to neighboring atoms. It is seen that complexity fluctuates around an average value, indicating that the atom cannot grow in complexity as Z increases. Onicescu's information energy is correlated with the ionization potential. Kullback distance and Jensen-Shannon distance are employed to compare Roothaan-Hartree-Fock density distributions with other densities of previous works.
dc.descriptionMajor revision, accepted for publication in the Journal of Chemical Physics
dc.identifierhttps://arxiv.org/abs/quant-ph/0507039
dc.identifierhttp://arxiv.org/abs/quant-ph/0507039
dc.identifierJ. Chem. Phys. 123, 174111 (2005)
dc.identifierdoi:10.1063/1.2121610
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/95897
dc.subjectQuantum Physics
dc.subjectAtomic Physics
dc.titleInformation Entropy, Information Distances and Complexity in Atoms
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