An analysis of Helium resonant states in terms of entropy, information, complexity and entanglement measures

28th International Conference on Photonic, Electronic and Atomic Collisions

Restrepo, J.P.^1 ; Sanz-Vicario, J.L.^1

Grupo de Física Atómica y Molecular, Instituto de Física, Universidad de Antioquia, Medellín, Colombia^1

关键词: Doubly excited state;    Entanglement measure;    Fisher information;    Particle densities;    Particle density distributions;    Resonant state;    Second ionization;    Shannon entropy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/15/152004/pdf
DOI  :  10.1088/1742-6596/488/15/152004

来源: IOP

【 摘 要 】

Shannon entropies and Fisher information calculated from one-particle density distributions and von Neumann and linear entropies (the latter two as a measure of entanglement) computed from the reduced one-particle density matrix are analyzed for the1,3se,1,3P0and1,3DeRydberg series of He doubly excited states below the second ionization threshold. We find that both Fisher information and entanglement measures are able to discriminate resonances pertaining to different (K,T)Aseries.