The Fisher-Shannon information plane, an electron correlation tool.
A new correlation measure, the product of the Shannon entropy power and the Fisher information of the electron density, is introduced by analyzing the Fisher-Shannon information plane of some two-electron systems (He-like ions, Hooke's atoms). The uncertainty and scaling properties of this information product are pointed out. In addition, the Fisher and Shannon measures of a finite many-electron system are shown to be bounded by the corresponding single-electron measures and the number of electrons of the system.
Romera
E
E
Departamento de Física Moderna and Instituto Carlos I de Física Teórica y Computacional, Universidad de Granada, E-18071 Granada, Spain. eromera@ugr.es
Dehesa
J S
JS