Transform-limited single photons from a single quantum dot

Nature Communications
Andreas V KuhlmannRichard J Warburton

Abstract

Developing a quantum photonics network requires a source of very-high-fidelity single photons. An outstanding challenge is to produce a transform-limited single-photon emitter to guarantee that single photons emitted far apart in the time domain are truly indistinguishable. This is particularly difficult in the solid-state as the complex environment is the source of noise over a wide bandwidth. A quantum dot is a robust, fast, bright and narrow-linewidth emitter of single photons; layer-by-layer growth and subsequent nano-fabrication allow the electronic and photonic states to be engineered. This represents a set of features not shared by any other emitter but transform-limited linewidths have been elusive. Here, we report transform-limited linewidths measured on second timescales, primarily on the neutral exciton but also on the charged exciton close to saturation. The key feature is control of the nuclear spins, which dominate the exciton dephasing via the Overhauser field.

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Citations

Apr 3, 2016·The Review of Scientific Instruments·Jenny KarlssonStefan Kröll
Jul 28, 2016·Nature Materials·Jonathan H PrechtelRichard J Warburton
Mar 3, 2017·The Review of Scientific Instruments·Jin LiuKartik Srinivasan
May 31, 2017·Nano Letters·Marcus ReindlRinaldo Trotta
Nov 8, 2017·Nature Nanotechnology·Pascale SenellartAndrew White
Sep 28, 2017·Physical Review Letters·Janik WoltersPhilipp Treutlein
Jun 11, 2016·Physical Review Letters·Hui WangJian-Wei Pan
Jul 12, 2017·BMC Medical Informatics and Decision Making·Peter FritzMark Dominik Alscher
May 3, 2020·The Review of Scientific Instruments·Evan Meyer-ScottAlan Migdall
Feb 6, 2017·Physical Review Letters·M PeirisA Muller
Mar 18, 2016·Materials·Sajid HussainGiorgio Biasiol
Jul 12, 2017·Physical Review Letters·M MüllerP Michler
Dec 17, 2016·Nanotechnology·Ilya SychugovJan Linnros
Jul 16, 2017·Nature Communications·Mathieu MunschRichard J Warburton
Jul 22, 2017·Physical Review Letters·R StockillM Atatüre
Dec 28, 2019·Optics Express·Christian SchimpfArmando Rastelli
Jul 9, 2016·Physical Review Letters·R N E MaleinB D Gerardot
Dec 21, 2017·The Analyst·J HaasB Mizaikoff
Nov 9, 2019·Physical Review Letters·Z X KoongB D Gerardot
Jan 11, 2020·Physical Review Letters·Alberto ArtioliJulien Claudon
Apr 2, 2019·Physical Review Letters·Max StraußStephan Reitzenstein
Dec 11, 2020·Science Advances·Ravitej UppuPeter Lodahl
Feb 13, 2021·Physical Review Letters·Z X KoongB D Gerardot
May 15, 2021·Optics Express·Hendrik Utzat, Moungi G Bawendi
Dec 19, 2018·Nano Letters·Amran Al-AshouriMartin Geller

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