Evidence map›Paper›PMID 37328483›Full record

ArticleNature communications2023

Single-emitter quantum key distribution over 175 km of fibre with optimised finite key rates.

Christopher L Morrison, Roberto G Pousa, Francesco Graffitti, Zhe Xian Koong, Peter Barrow, Nick G Stoltz, Dirk Bouwmeester, John Jeffers, Daniel K L Oi, Brian D Gerardot and 1 more

Abstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Christopher L MorrisonInstitute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.ORCID http://orcid.org/0000-0003-0779-6526
Roberto G PousaSUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK.
Francesco GraffittiInstitute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.ORCID http://orcid.org/0000-0002-8802-8360
Zhe Xian KoongInstitute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
Peter BarrowInstitute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
Nick G StoltzMaterials Department, University of California, Santa Barbara, CA, 93106, USA.
Dirk BouwmeesterHuygens-Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9504, 2300 RA, Leiden, Netherlands.
John JeffersSUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK.
Daniel K L OiSUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK.ORCID http://orcid.org/0000-0003-0965-9509
Brian D GerardotInstitute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.ORCID http://orcid.org/0000-0002-0279-898X
Alessandro FedrizziInstitute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK. a.fedrizzi@hw.ac.uk.ORCID http://orcid.org/0000-0002-5089-3148

Funding

EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council) 725920RCUK | Engineering and Physical Sciences Research Council (EPSRC) EP/L015110/1RCUK | Engineering and Physical Sciences Research Council (EPSRC) EP/T00097X/1RCUK | Engineering and Physical Sciences Research Council (EPSRC) EP/T001011/1RCUK | Engineering and Physical Sciences Research Council (EPSRC) EP/T517288/1RCUK | Engineering and Physical Sciences Research Council (EPSRC) EP/W027011/1
6 · The paper itself

Abstract

Quantum key distribution with solid-state single-photon emitters is gaining traction due to their rapidly improving performance and compatibility with future quantum networks. Here we emulate a quantum key distribution scheme with quantum-dot-generated single photons frequency-converted to 1550 nm, achieving count rates of 1.6 MHz with [Formula: see text] and asymptotic positive key rates over 175 km of telecom fibre. We show that the commonly used finite-key analysis for non-decoy state QKD drastically overestimates secure key acquisition times due to overly loose bounds on statistical fluctuations. Using the tighter multiplicative Chernoff bound to constrain the estimated finite key parameters, we reduce the required number of received signals by a factor 10

Indexed as

PhotonsQuantum DotsPlant StructuresTraction

Identifiers

PMID37328483
PMCPMC10275872

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.