@misc{10481/72872, year = {2022}, month = {2}, url = {http://hdl.handle.net/10481/72872}, abstract = {The discrepancy among one-electron and two-electron densities for diverse N-electron atomss, enclosing neutral systems (with nuclear charge Z = N) and charge-one ions (|N − Z| = 1), is quantified by means of mutual information, I, and Quantum Similarity Index, QSI, in the conjugate spaces position/momentum. These differences can be interpreted as a measure of the electron correlation of the system. The analysis is carried out by considering systems with a nuclear charge up to Z = 103 and singly charged ions (cations and anions) as far as N = 54. The interelectronic correlation, for any given system, is quantified through the comparison of its double-variable electron pair density and the product of the respective one-particle densities. An in-depth study along the Periodic Table reveals the importance, far beyond the weight of the systems considered, of their shell structure.}, organization = {Andalusian research groups FQM-207, FQM-239, FQM-4643, FQM-7276}, organization = {ERDF-University of Granada}, organization = {Junta de Andalucía A-FQM-52-UGR20}, publisher = {MDPI}, keywords = {Mutual information}, keywords = {Quantum similarity index}, keywords = {Electron correlation}, keywords = {Multielectronic systems}, title = {Mutual Information in Conjugate Spaces for Neutral Atoms and Ions}, doi = {10.3390/e24020233}, author = {Angulo Ibáñez, Juan Carlos and López Rosa, Sheila}, }