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Satellite-to-ground quantum key distribution

Overview of attention for article published in Nature, August 2017
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • Good Attention Score compared to outputs of the same age and source (76th percentile)

Mentioned by

21 news outlets
2 blogs
83 tweeters
2 patents
2 Facebook pages
6 Google+ users
1 Redditor
1 video uploader


485 Dimensions

Readers on

438 Mendeley
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Satellite-to-ground quantum key distribution
Published in
Nature, August 2017
DOI 10.1038/nature23655
Pubmed ID

Sheng-Kai Liao, Wen-Qi Cai, Wei-Yue Liu, Liang Zhang, Yang Li, Ji-Gang Ren, Juan Yin, Qi Shen, Yuan Cao, Zheng-Ping Li, Feng-Zhi Li, Xia-Wei Chen, Li-Hua Sun, Jian-Jun Jia, Jin-Cai Wu, Xiao-Jun Jiang, Jian-Feng Wang, Yong-Mei Huang, Qiang Wang, Yi-Lin Zhou, Lei Deng, Tao Xi, Lu Ma, Tai Hu, Qiang Zhang, Yu-Ao Chen, Nai-Le Liu, Xiang-Bin Wang, Zhen-Cai Zhu, Chao-Yang Lu, Rong Shu, Cheng-Zhi Peng, Jian-Yu Wang, Jian-Wei Pan


Quantum key distribution (QKD) uses individual light quanta in quantum superposition states to guarantee unconditional communication security between distant parties. In practice, the achievable distance for QKD has been limited to a few hundred kilometres, owing to the channel loss of fibers or terrestrial free space that exponentially reduced the photon rate. Satellite-based QKD promises to establish a global-scale quantum network by exploiting the negligible photon loss and decoherence in the empty out space. Here we develop and launch a low-Earth-orbit satellite to implement decoy-state QKD with over kHz key rate from the satellite to ground over a distance of up to 1,200 km, which is up to 20 orders of magnitudes more efficient than that expected using an optical fiber (with 0.2 dB/km loss) of the same length. The establishment of a reliable and efficient space-to-ground link for faithful quantum state transmission paves the way to global-scale quantum networks.

Twitter Demographics

The data shown below were collected from the profiles of 83 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 438 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 438 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 123 28%
Researcher 74 17%
Student > Master 56 13%
Student > Bachelor 37 8%
Student > Doctoral Student 22 5%
Other 57 13%
Unknown 69 16%
Readers by discipline Count As %
Physics and Astronomy 230 53%
Engineering 75 17%
Computer Science 18 4%
Materials Science 7 2%
Agricultural and Biological Sciences 6 1%
Other 25 6%
Unknown 77 18%

Attention Score in Context

This research output has an Altmetric Attention Score of 244. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 April 2021.
All research outputs
of 17,674,883 outputs
Outputs from Nature
of 80,174 outputs
Outputs of similar age
of 279,262 outputs
Outputs of similar age from Nature
of 733 outputs
Altmetric has tracked 17,674,883 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 80,174 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 90.1. This one has done particularly well, scoring higher than 91% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 279,262 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 733 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 76% of its contemporaries.