Entanglement in and quantum dots: Exact calculations and DFT approximations

Jeremy Coe; A. Sudbery; I. D’Amico

doi:10.1016/j.mejo.2008.06.061

Entanglement in and quantum dots: Exact calculations and DFT approximations

Jeremy Coe, A. Sudbery, I. D’Amico

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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 language	English
Pages (from-to)	499-501
Number of pages	3
Journal	Microelectronics Journal
Volume	40
Issue number	3
DOIs	https://doi.org/10.1016/j.mejo.2008.06.061
Publication status	Published - Mar 2009

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10.1016/j.mejo.2008.06.061

http://linkinghub.elsevier.com/retrieve/pii/S0026269208002693

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title = "Entanglement in and quantum dots: Exact calculations and DFT approximations",

abstract = "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.",

author = "Jeremy Coe and A. Sudbery and I. D{\textquoteright}Amico",

year = "2009",

month = mar,

doi = "10.1016/j.mejo.2008.06.061",

language = "English",

volume = "40",

pages = "499--501",

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T1 - Entanglement in and quantum dots

T2 - Exact calculations and DFT approximations

AU - Coe, Jeremy

AU - Sudbery, A.

AU - D’Amico, I.

PY - 2009/3

Y1 - 2009/3

N2 - 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.

AB - 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.

U2 - 10.1016/j.mejo.2008.06.061

DO - 10.1016/j.mejo.2008.06.061

M3 - Article

SN - 0026-2692

VL - 40

SP - 499

EP - 501

JO - Microelectronics Journal

JF - Microelectronics Journal

IS - 3

ER -

Entanglement in and quantum dots: Exact calculations and DFT approximations

Abstract

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