Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8204866 | Physics Letters A | 2014 | 5 Pages |
Abstract
In the present work, we carry out calculations of von Neumann entropies and linear entropies for the hydrogen negative ion and the positronium negative ion. We concentrate on the spatial (electron-electron orbital) entanglement in these ions by using highly correlated Hylleraas functions to represent their ground states, and to take care of correlation effects. We apply the Schmidt decomposition method on the partial-wave expanded two-electron wave functions, and from which the one-particle reduced density matrix can be obtained, leading to the quantifications of linear entropy and von Neumann entropy in the Hâ and Psâ ions.
Related Topics
Physical Sciences and Engineering
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Authors
Chien-Hao Lin, Yew Kam Ho,