Journal article
A Pure and Indistinguishable Single‐Photon Source at Telecommunication Wavelength
Advanced quantum technologies (Online), Vol.5(5), 2200006
05/2022
DOI: 10.1002/qute.202200006
Abstract
On-demand single-photon sources emitting pure and indistinguishable photons at the telecommunication wavelength are critical assets toward the deployment of fiber-based quantum networks. Indeed, single photons may serve as flying qubits, allowing communication of quantum information over long distances. Self-assembled InAs quantum dots embedded in GaAs constitute an excellent nearly deterministic source of high-quality single photons, but the vast majority of sources operate in the 900–950 nm wavelength range, precluding their adoption in a quantum network. A quantum frequency conversion scheme is presented here for converting single photons from quantum dots to the telecommunication C band, around1550 nm, achieving 40.8% end-to-end efficiency, while maintaining both high purity and a high degree of indistinguishability during conversion with measured values ofg(2)(0)=2.4%andV(corr)=94.8%, respectively.
Details
- Title: Subtitle
- A Pure and Indistinguishable Single‐Photon Source at Telecommunication Wavelength
- Creators
- Beatrice Da Lio - University of CopenhagenCarlos Faurby - University of CopenhagenXiaoyan Zhou - University of CopenhagenMing Lai Chan - University of CopenhagenRavitej Uppu - University of IowaHenri Thyrrestrup - University of CopenhagenSven Scholz - Ruhr University BochumAndreas D. Wieck - Ruhr University BochumArne Ludwig - Lehrstuhl für Angewandte Festköorperphysik Ruhr‐Universität Bochum Universitätsstrasse 150 D‐44780 Bochum GermanyPeter Lodahl - University of CopenhagenLeonardo Midolo - University of Copenhagen
- Resource Type
- Journal article
- Publication Details
- Advanced quantum technologies (Online), Vol.5(5), 2200006
- DOI
- 10.1002/qute.202200006
- ISSN
- 2511-9044
- eISSN
- 2511-9044
- Grant note
- DOI: 10.13039/501100001732, name: Danmarks Grundforskningsfond, award: DNRF 139; DOI: 10.13039/100012774, name: Innovationsfonden, award: 9090‐00031B; DOI: 10.13039/501100002347, name: Bundesministerium für Bildung und Forschung, award: X 16KIS0867; DOI: 10.13039/501100001659, name: Deutsche Forschungsgemeinschaft, award: TRR 160
- Language
- English
- Date published
- 05/2022
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984442213602771
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