Evidence map›Paper›PMID 39178268›Full record

ArticleScience advances2024

Experimental quantum Byzantine agreement on a three-user quantum network with integrated photonics.

Xu Jing, Cheng Qian, Chen-Xun Weng, Bing-Hong Li, Zhe Chen, Chen-Quan Wang, Jie Tang, Xiao-Wen Gu, Yue-Chan Kong, Tang-Sheng Chen and 4 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
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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

14 authors.

Xu JingKey Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China.ORCID 0000-0001-8067-7705
Cheng QianKey Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China.ORCID 0009-0006-0943-5360
Chen-Xun WengNational Laboratory of Solid-State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China.ORCID 0000-0002-7287-4386
Bing-Hong LiNational Laboratory of Solid-State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China.ORCID 0000-0001-5414-5027
Zhe ChenKey Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China.ORCID 0009-0004-5670-9075
Chen-Quan WangNational Key Laboratory of Solid-State Microwave Devices and Circuits, Nanjing Chip Valley Industrial Technology Institute, Nanjing Electronic Devices Institute,Nanjing 210016, China.ORCID 0009-0009-1497-466X
Jie TangNational Key Laboratory of Solid-State Microwave Devices and Circuits, Nanjing Chip Valley Industrial Technology Institute, Nanjing Electronic Devices Institute,Nanjing 210016, China.ORCID 0009-0005-4215-2066
Xiao-Wen GuNational Key Laboratory of Solid-State Microwave Devices and Circuits, Nanjing Chip Valley Industrial Technology Institute, Nanjing Electronic Devices Institute,Nanjing 210016, China.ORCID 0000-0002-2237-6231
Yue-Chan KongNational Key Laboratory of Solid-State Microwave Devices and Circuits, Nanjing Chip Valley Industrial Technology Institute, Nanjing Electronic Devices Institute,Nanjing 210016, China.ORCID 0000-0001-8968-2615
Tang-Sheng ChenNational Key Laboratory of Solid-State Microwave Devices and Circuits, Nanjing Chip Valley Industrial Technology Institute, Nanjing Electronic Devices Institute,Nanjing 210016, China.ORCID 0009-0005-8882-266X
Hua-Lei YinNational Laboratory of Solid-State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China.ORCID 0000-0002-7718-0818
Dong JiangSchool of Internet, Anhui University, Hefei 230039, China.ORCID 0000-0002-4754-1870
Bin NiuNational Laboratory of Solid-State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China.ORCID 0000-0002-5387-5324
Liang-Liang LuKey Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China.ORCID 0000-0001-8245-8266

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Quantum communication networks are crucial for both secure communication and cryptographic networked tasks. Building quantum communication networks in a scalable and cost-effective way is essential for their widespread adoption. Here, we establish a complete polarization entanglement-based fully connected network, which features an ultrabright integrated Bragg reflection waveguide quantum source, managed by an untrusted service provider, and a streamlined polarization analysis module, which requires only one single-photon detector for each user. We perform a continuously working quantum entanglement distribution and create correlated bit strings between users. Within the framework of one-time universal hashing, we provide the experimental implementation of source-independent quantum digital signatures using imperfect keys circumventing the necessity for private amplification. We further beat the 1/3 fault tolerance bound in the Byzantine agreement, achieving unconditional security without relying on sophisticated techniques. Our results offer an affordable and practical route for addressing consensus challenges within the emerging quantum network landscape.

Identifiers

PMID39178268
PMCPMC11809609

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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.