---
_id: '3435'
abstract:
- lang: eng
  text: "Semiconductor quantum dots are promising sources for polarization-entangled
    photons. As an alternative\r\nto the usual cascaded biexciton-exciton emission,
    direct two-photon emission from the biexciton can be used.\r\nWith a high-quality
    optical resonator tuned to half the biexciton energy, a large proportion of the
    photons\r\ncan be steered into the two-photon emission channel. In this case the
    degree of polarization entanglement is\r\ninherently insensitive to the exciton
    fine-structure splitting. In the present work we analyze the biexciton emission\r\nwith
    particular emphasis on the influence of coupling of the quantum-dot cavity system
    to its environment.\r\nEspecially for a high-quality cavity, the coupling to the
    surrounding semiconductormaterial can open up additional\r\nphonon-assisted decay
    channels. Our analysis demonstrates that with the cavity tuned to half the biexciton
    energy,\r\nthe potentially detrimental influence of the phonons on the polarization
    entanglement is strongly suppressed—high\r\ndegrees of entanglement can still
    be achieved. We further discuss spectral properties and statistics of the emitted\r\ntwin
    photons."
article_type: original
author:
- first_name: Dirk
  full_name: Heinze, Dirk
  last_name: Heinze
- first_name: Artur
  full_name: Zrenner, Artur
  id: '606'
  last_name: Zrenner
  orcid: 0000-0002-5190-0944
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Heinze D, Zrenner A, Schumacher S. Polarization-entangled twin photons from
    two-photon quantum-dot emission. <i>Physical Review B</i>. 2017;(24). doi:<a href="https://doi.org/10.1103/PhysRevB.95.245306">10.1103/PhysRevB.95.245306</a>
  apa: Heinze, D., Zrenner, A., &#38; Schumacher, S. (2017). Polarization-entangled
    twin photons from two-photon quantum-dot emission. <i>Physical Review B</i>, <i>24</i>.
    <a href="https://doi.org/10.1103/PhysRevB.95.245306">https://doi.org/10.1103/PhysRevB.95.245306</a>
  bibtex: '@article{Heinze_Zrenner_Schumacher_2017, title={Polarization-entangled
    twin photons from two-photon quantum-dot emission}, DOI={<a href="https://doi.org/10.1103/PhysRevB.95.245306">10.1103/PhysRevB.95.245306</a>},
    number={24}, journal={Physical Review B}, author={Heinze, Dirk and Zrenner, Artur
    and Schumacher, Stefan}, year={2017} }'
  chicago: Heinze, Dirk, Artur Zrenner, and Stefan Schumacher. “Polarization-Entangled
    Twin Photons from Two-Photon Quantum-Dot Emission.” <i>Physical Review B</i>,
    no. 24 (2017). <a href="https://doi.org/10.1103/PhysRevB.95.245306">https://doi.org/10.1103/PhysRevB.95.245306</a>.
  ieee: 'D. Heinze, A. Zrenner, and S. Schumacher, “Polarization-entangled twin photons
    from two-photon quantum-dot emission,” <i>Physical Review B</i>, no. 24, 2017,
    doi: <a href="https://doi.org/10.1103/PhysRevB.95.245306">10.1103/PhysRevB.95.245306</a>.'
  mla: Heinze, Dirk, et al. “Polarization-Entangled Twin Photons from Two-Photon Quantum-Dot
    Emission.” <i>Physical Review B</i>, no. 24, 2017, doi:<a href="https://doi.org/10.1103/PhysRevB.95.245306">10.1103/PhysRevB.95.245306</a>.
  short: D. Heinze, A. Zrenner, S. Schumacher, Physical Review B (2017).
date_created: 2018-07-05T12:08:38Z
date_updated: 2025-12-05T14:35:08Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
- _id: '170'
- _id: '297'
- _id: '429'
doi: 10.1103/PhysRevB.95.245306
issue: '24'
language:
- iso: eng
project:
- _id: '53'
  name: TRR 142
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '60'
  name: TRR 142 - Subproject A3
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
publication: Physical Review B
publication_identifier:
  issn:
  - 1098-0121
publication_status: published
status: public
title: Polarization-entangled twin photons from two-photon quantum-dot emission
type: journal_article
user_id: '16199'
year: '2017'
...