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Quantum cryptography with a photon turnstile

Author

Listed:
  • Edo Waks

    (Quantum Entanglement Project, ICORP, JST, MURI, UCLA, E. L. Ginzton Labs, Stanford University)

  • Kyo Inoue

    (NTT Basic Research Laboratories)

  • Charles Santori

    (Quantum Entanglement Project, ICORP, JST, MURI, UCLA, E. L. Ginzton Labs, Stanford University)

  • David Fattal

    (Quantum Entanglement Project, ICORP, JST, MURI, UCLA, E. L. Ginzton Labs, Stanford University)

  • Jelena Vuckovic

    (Quantum Entanglement Project, ICORP, JST, MURI, UCLA, E. L. Ginzton Labs, Stanford University)

  • Glenn S. Solomon

    (Solid State Photonics Laboratory, Stanford University)

  • Yoshihisa Yamamoto

    (Quantum Entanglement Project, ICORP, JST, MURI, UCLA, E. L. Ginzton Labs, Stanford University
    NTT Basic Research Laboratories)

Abstract

Quantum cryptography generates unbreakable cryptographic codes by encoding information using single photons, which until now have relied on highly attenuated lasers as sources1,2. But these sources can create pulses that contain more than one photon, making them vulnerable to eavesdropping by photon splitting3,4. Here we present an experimental demonstration of quantum cryptography that uses a photon turnstile device, which is more reliable for delivering photons one at a time. This device allows completely secure communication in circumstances under which this would be impossible with an attenuated laser.

Suggested Citation

  • Edo Waks & Kyo Inoue & Charles Santori & David Fattal & Jelena Vuckovic & Glenn S. Solomon & Yoshihisa Yamamoto, 2002. "Quantum cryptography with a photon turnstile," Nature, Nature, vol. 420(6917), pages 762-762, December.
    • Handle: RePEc:nat:nature:v:420:y:2002:i:6917:d:10.1038_420762a
    DOI: 10.1038/420762a
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    Cited by:

    1. 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 & Alessandro F, 2023. "Single-emitter quantum key distribution over 175 km of fibre with optimised finite key rates," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Xuyue Guo & Peng Li & Jinzhan Zhong & Dandan Wen & Bingyan Wei & Sheng Liu & Shuxia Qi & Jianlin Zhao, 2022. "Stokes meta-hologram toward optical cryptography," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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