中国物理B ›› 2018, Vol. 27 ›› Issue (2): 20307-020307.doi: 10.1088/1674-1056/27/2/020307

所属专题: TOPICAL REVIEW — Solid-state quantum information processing

• TOPICAL REVIEW——Slid-state quantum information processing • 上一篇    下一篇

Entangled-photons generation with quantum dots

Yuan Li(李远), Fei Ding(丁飞), Oliver G Schmidt   

  1. 1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany;
    2. Institute for Solid State Physics, Leibniz University of Hannover, Appelstraße 2, 30167 Hannover, Germany
  • 收稿日期:2017-09-28 修回日期:2018-01-12 出版日期:2018-02-05 发布日期:2018-02-05
  • 通讯作者: Fei Ding E-mail:f.ding@ifw-dresden.de

Entangled-photons generation with quantum dots

Yuan Li(李远)1, Fei Ding(丁飞)1,2, Oliver G Schmidt1   

  1. 1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany;
    2. Institute for Solid State Physics, Leibniz University of Hannover, Appelstraße 2, 30167 Hannover, Germany
  • Received:2017-09-28 Revised:2018-01-12 Online:2018-02-05 Published:2018-02-05
  • Contact: Fei Ding E-mail:f.ding@ifw-dresden.de
  • About author:03.67.Hk; 03.67.Bg; 73.21.La

摘要:

Entanglement between particles is a crucial resource in quantum information processing, an important example of which is the exploitation of entangled photons in quantum communication protocols. Among the different available sources of entangled photons, semiconductor quantum dots (QDs) excel owing to their deterministic emission properties, potential for electrical injections, and direct compatibility with semiconductor manufacturing techniques. Despite the great promises, QD-based sources are far from being ideal. In particular, such sources present several critical issues, which require the overcoming of challenges pertaining to spectral tunability, entanglement fidelity, photon indistinguishability and brightness. In this article, we will discuss the potential solutions to these problems and review the recent progress in the field.

关键词: quantum information, entangled-photon source, quantum dots

Abstract:

Entanglement between particles is a crucial resource in quantum information processing, an important example of which is the exploitation of entangled photons in quantum communication protocols. Among the different available sources of entangled photons, semiconductor quantum dots (QDs) excel owing to their deterministic emission properties, potential for electrical injections, and direct compatibility with semiconductor manufacturing techniques. Despite the great promises, QD-based sources are far from being ideal. In particular, such sources present several critical issues, which require the overcoming of challenges pertaining to spectral tunability, entanglement fidelity, photon indistinguishability and brightness. In this article, we will discuss the potential solutions to these problems and review the recent progress in the field.

Key words: quantum information, entangled-photon source, quantum dots

中图分类号:  (Quantum communication)

  • 03.67.Hk
03.67.Bg (Entanglement production and manipulation) 73.21.La (Quantum dots)