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Free-space communications

Quantum space race heats up

The realization of satellite-to-ground quantum cryptography would make quantum-secured communications possible on a global scale. Four recent breakthroughs suggest that this compelling capability could be achieved by the end of this decade.

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Figure 1: Satellite-to-ground quantum communications are opening the door to new secure communications techniques.

References

  1. Takenaka, H. et al. Nat. Photon. 11, 502–508 (2017).

    Article  Google Scholar 

  2. Liao, S.-K. et al. Nat. Photon. 11, 509–513 (2017).

    Article  Google Scholar 

  3. Yin, J. et al. Science 356, 1140–1144 (2017).

    Article  Google Scholar 

  4. Günthner, K. et al. Optica 4, 611–616 (2017).

    ADS  Article  Google Scholar 

  5. Bennett, C. H. & Brassard, G. In Proc. Int. Conf. Computers, Systems Signal Processing 175–179 (IEEE, 1984).

    Google Scholar 

  6. Chapuran, T. E. et al. New J. Phys. 11, 105001 (2009).

    ADS  Article  Google Scholar 

  7. Hughes, R. J., Nordholt, J. E., Derkacs, D. & Peterson, C. G. New J. Phys. 4, 43 (2002).

    ADS  Article  Google Scholar 

  8. Nordholt, J. E., Hughes, R. J., Morgan, G. L., Peterson, C. G. & Wipf, C. C. Proc. SPIE 4635, 116–126 (2002).

    ADS  Article  Google Scholar 

  9. Jono, T. et al. Proc. SPIE 6105, 13–23 (SPIE, 2006).

    Google Scholar 

  10. Ekert, A. K. Phys. Rev. Lett. 67, 661–663 (1991).

    ADS  MathSciNet  Article  Google Scholar 

Download references

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Correspondence to Richard J. Hughes or Jane E. Nordholt.

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Hughes, R., Nordholt, J. Quantum space race heats up. Nature Photon 11, 456–458 (2017). https://doi.org/10.1038/nphoton.2017.124

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