Entanglement in and quantum dots: Exact calculations and DFT approximations

Jeremy Coe, A. Sudbery, I. D’Amico

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We consider two electrons confined in spherical GaAs and CdSe quantum dots and calculate their ground-state spatial entanglement exactly within a parabolic confinement model.

We propose a perturbative scheme to approximate the above entanglement within density-functional theory and show that it reproduces the exact results quite accurately for GaAs dots of diameter up to 25nmand CdSe dots of diameter up to 15nm.
Original languageEnglish
Pages (from-to)499-501
Number of pages3
JournalMicroelectronics Journal
Issue number3
Publication statusPublished - Mar 2009


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