Two-electron entanglement in a two-dimensional isotropic harmonic trap: Radial correlation effects in the low density limit
arXiv:1012.3366 · doi:10.1016/j.physleta.2010.12.035
Abstract
We study a two-dimensional system of two Coulombically interacting electrons in an external harmonic confining potential. More precisely, we present calculations for the singlet ground-state of the system. We explain the nature of the degeneracy in the spectrum of the reduced density matrix and provide detailed results for the dependencies of the entanglement on the interaction strength. Among other features, it is indicated that in the limit of an infinitely strong interaction, the angular and radial correlations are asymptotically independent of each other. Appearing in this limit, the pure radial correlation effects are quantitatively investigated for the first time.
10 pages,3 figures
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Cited by in corpus (5)
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- Entanglement entropies in the ground states of helium-like atoms
- Entanglement in S states of two-electron quantum dots with Coulomb impurities at the center
- Three strongly correlated charged bosons in a one-dimensional harmonic trap: natural orbital occupancies