Entanglement measures in doubly excited states and nondispersive wave packets in planar helium

We calculate the amount of entanglement for bound and doubly excited singlet states below the second, third and fourth ionization thresholds in planar helium. Furthermore, we investigate the dynamics of entanglement in nondispersive two-electron wave packets generated by the resonant coupling of fro...

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Bibliographic Details
Published in:	Journal of physics communications Vol. 3; no. 3; pp. 35015 - 35026
Main Authors:	González-Melan, A, Madroñero, J
Format:	Journal Article
Language:	English
Published:	Bristol IOP Publishing 01-03-2019
Subjects:	driving field electronic correlations entanglement helium nondispersive wave packets
Online Access:	Get full text
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Summary:	We calculate the amount of entanglement for bound and doubly excited singlet states below the second, third and fourth ionization thresholds in planar helium. Furthermore, we investigate the dynamics of entanglement in nondispersive two-electron wave packets generated by the resonant coupling of frozen planet states of helium. We show that it is possible to obtain a two-electron nondispersive wave packet for which the time-average entanglement is greater than for each of the unperturbed coupled states.
Bibliography:	JPCO-100994.R2
ISSN:	2399-6528 2399-6528
DOI:	10.1088/2399-6528/ab091d