# Current-injection quantum-entangled-pair emitter using droplet epitaxial quantum dots on GaAs(111)A

https://mdr.nims.go.jp/datasets/b72a5445-a4f0-4f5c-a1be-a87afac4ed6d

## File

- [03-出版-083106_1_online.pdf](https://mdr.nims.go.jp/filesets/dd1758af-b557-4f31-9dfd-96f5e402019c/download) ([Detail](https://mdr.nims.go.jp/filesets/dd1758af-b557-4f31-9dfd-96f5e402019c.md))
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## Id

b72a5445-a4f0-4f5c-a1be-a87afac4ed6d

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-05T04:48:10.797043Z

## Updated at

2025-12-06T03:30:15.281661Z

## Published at

2025-12-05T23:34:00.316230Z

## Doi



## First published url

https://doi.org/10.1063/1.5103217

## Date published

2019-08-19

## Recorded date published

2019-8-19

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Current-injection quantum-entangled-pair emitter using droplet epitaxial
    quantum dots on GaAs(111)A
  title_type: original
  lang: en

## Description

- description: "A source of single photons and quantum entangled photon pairs is a
    key element in quantum information networks. Here, we demonstrate the electrically
    driven generation of quantum entangled pairs using a naturally symmetric GaAs
    quantum dot grown by droplet epitaxy.\r\nCoincidence histograms obtained at a
    temperature of 10 K reveal the generation of quantum entangled pairs that have
    a fidelity to the Bell pairs of 0.7160.015, much beyond the classical limit. We
    study the temperature dependent device characteristics and estimate the\r\nmaximum
    operation temperature to be ~ 65 K, which is essentially limited by the weak charge
    carrier confinement in the present dot system. Our study offers a guideline for
    the fabrication of quantum entangled pair sources suitable for practical use."
  description_type: abstract
  lang: en

## Creator

- name: Neul Ha
  role: author
  orcid: https://orcid.org/0000-0002-7695-2193
  organization: National Institute for Materials Science
- name: Takaaki Mano
  role: author
  orcid: https://orcid.org/0000-0002-6955-260X
  organization: National Institute for Materials Science
- name: Takashi Kuroda
  role: author
  orcid: https://orcid.org/0000-0001-6445-7673
  organization: National Institute for Materials Science
- name: Yoshiki Sakuma
  role: author
  orcid: https://orcid.org/0000-0001-6804-7217
  organization: National Institute for Materials Science
- name: Kazuaki Sakoda
  role: author
  orcid: https://orcid.org/0000-0002-5530-3020
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: AIP Publishing

## Managing organization



## Keyword

- subject: GaAs
  schema: not_defined
- subject: Quantum Dot
  schema: not_defined
- subject: Droplet Epitaxy
  schema: not_defined
- subject: Entanglement
  schema: not_defined
- subject: "(111)A"
  schema: not_defined
- subject: Fine Structure Splitting
  schema: not_defined
- subject: Electroluminescence
  schema: not_defined

## Rights

- description: " This article may be downloaded for personal use only. Any other use
    requires prior permission of the author and AIP Publishing. This article appeared
    in Neul Ha, Takaaki Mano, Takashi Kuroda, Yoshiki Sakuma, Kazuaki Sakoda; Current-injection
    quantum-entangled-pair emitter using droplet epitaxial quantum dots on GaAs(111)A.
    Appl. Phys. Lett. 19 August 2019; 115 (8): 083106 and may be found at https://doi.org/10.1063/1.5103217."
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2019-08-19
end_date: 2020-08-19

## Journal

- title: Applied Physics Letters
  issn: '00036951'
  volume: '115'
  issue: '8'
  article_number: '083106'

## Conference



## Related item



## Funding

- identifier: '25390011'
  funder_name: 日本学術振興会
  description: "液滴エピタキシー法による理想的な量子ドットの自己形成\r\n基盤研究(C)"

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Fileset

- id: dd1758af-b557-4f31-9dfd-96f5e402019c
  filename: 03-出版-083106_1_online.pdf
  content_type: application/pdf
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  md5: 031dba5ffd3f8fbcd61dc711a6beab26
- id: 1e5b7087-1d3a-4ab2-8882-73e34d6c46c8
  filename: 03-サプリメンタル-entangledLED_supplement_20190425.pdf
  content_type: application/pdf
  size: 549204
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## Thumbnail

fileset_id: dd1758af-b557-4f31-9dfd-96f5e402019c
filename: 03-出版-083106_1_online.pdf