Quantum communication technology

Quantum communication technology

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Quantum communication is built on a set of disruptive concepts and technologies. It is driven by fascinating physics and by promising applications. It requires a new mix of competencies, from telecom engineering to theoretical physics, from theoretical computer science to mechanical and electronic engineering. First applications have already found their way into niche markets, and university labs are working on futuristic quantum networks, but most of the surprises are still ahead of us. Quantum communication, and more generally quantum information science and technologies, are here to stay and will have a profound impact on the 21st century.


    1. 1)
      • Quantum communication
    2. 2)
    3. 3)
      • Quantum cryptography
    4. 4)
      • Swiss national metrology institute,
    5. 5)
      • Bennett, Ch.H., Brassard, G.: `Quantum cryptography: public key distribution and coin tossing', Int. conf. Computers, Systems & Signal Processing, 1984, Bangalore, India, 10–12, p. 175–179
    6. 6)
    7. 7)
      • Quantum key distribution with high loss: toward global secure communication
    8. 8)
      • Beating the photon-number-splitting attack in practical quantum cryptography
    9. 9)
      • Decoy state quantum key distribution
    10. 10)
      • Harrington, J.W., Ettinger, J.M., Hugues, R.J., Nordholt, J.R.: `Enhancing practical security of quantum key distribution with a few decoy states', quant-ph/0503002, Los Alamos report LA-UR-05-1156, 2005
    11. 11)
      • Differential-phase-shift quantum key distribution using coherent light
    12. 12)
    13. 13)
      • Single-photon detectors for optical quantum information applications
    14. 14)
      • Phys. Rev. A
    15. 15)
      • Counting near-infrared single-photons with 95% efficiency
    16. 16)
      • An afterpulse is caused by trapped charges in the APD being released when the detector is reset causing another avalanche resulting in a false detection event
    17. 17)
      • Continuous Variable Quantum Cryptography Using Coherent States
    18. 18)
      • Quantum key distribution and 1 Gbit/s data encryption over a single fibre
    19. 19)
      • The SECOQC quantum key distribution network in Vienna
    20. 20)
      • Trojan-horse attacks on quantum-key-distribution systems
    21. 21)
      • Effects of detector efficiency mismatch on security of quantum cryptosystems
    22. 22)
      • Time-shift attack in practical quantum cryptosystems
    23. 23)
    24. 24)
    25. 25)
      • Quantum memories: A review based on the European integrated project Qubit Applications (QAP)
    26. 26)
      • See the websites for QuReP at and Q-ESSENCE:
    27. 27)
      • For example in Switzerland, the NCCR – quantum photonics programme

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