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Entanglement studies in a simple two-electron atomic model

par Carlier, Frédéric;Mandilara, Aikaterini ;Sarfati, Alain
Référence Journal of Physics. B, Atomic Molecular and Optical Physics, 40, 9, S199-S207
Publication Publié, 2007-05

Article révisé par les pairs

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Résumé :

With a model of a one-dimensional two-electron atom we study the entanglement properties between two particles with non-overlapping wavefunctions that interact via the Coulombic, long-range potential. We calculate the two-electron eigenstates and monitor the bipartite entanglement using the von Neumann entropy. We observe non-trivial entangled states as we approach the double-excited state and Bell-like states at the single-ionization potential