Quantum Cryptography

Dear Colleagues,

Quantum cryptography is today the most advanced quantum technology in our hands, with experiments involving entire metropolitan areas and with spin-off companies already selling prototypes. Current theoretical and experimental efforts are focused in many directions: Extending the maximum distance of key distribution, increasing its rate, using different frequencies, and developing new protocols which are more suitable for a future quantum network. This Special Issue aims to collect short review articles and original contributions regarding the most recent developments in this field. We welcome submissions on topics including, but not limited to: quantum key distribution (with discrete or continuous variable systems), secure quantum networks, untrusted-relay quantum cryptography, device-independent quantum cryptography, secret-key capacities, and quantum hacking.

Dr. Stefano Pirandola
Guest Editor

References:

1. Gisin, N.; Ribordy, G.; Tittel, W.; Zbinden, H. Quantum cryptography. Rev. Mod. Phys. 2002, 74, 145–195.
2. Ekert, A.K. Quantum cryptography based on Bell’s theorem. Phys. Rev. Lett. 1991, 67, 661–663.
3. Braunstein, S.L.; Pirandola, S. Side-channel-free quantum key distribution. Phys. Rev. Lett. 2012, 108, 130502.
4. Renner, R.; Gisin, N.; Kraus, B. Information-theoretic security proof for quantum-key-distribution protocols. Phys. Rev. A 2005, 72, 012332.
5. Devetak, I.; Winter, A. Distillation of secret key and entanglement from quantum states. Proc. R. Soc. Lond. A 2005, 461, 207–235.
6. Guha, S.; Hayden, P.; Krovi, H.; Lloyd, S.; Lupo, C.; Shapiro, J.H.; Takeoka, M.; Wilde, M.M. Quantum enigma machines and the locking capacity of a quantum channel. Phys. Rev. X 2014, 4, 011016.
7. Pirandola, S.; Garcia-Patron, R.; Braunstein, S.L.; Lloyd, S. Direct and Reverse Secret-Key Capacities of a Quantum Channel. Phys. Rev. Lett. 2009, 102, 050503.
8. Weedbrook, C.; Lance, A.M.; Bowen, W.P.; Symul, T.; Ralph, T.C.; Lam, P.K. Coherent State Quantum Key Distribution Without Random Basis Switching. Phys. Rev. A 2006, 73, 022316.
9. Grosshans, F.; Van Assche, G.; Wenger, J.; Brouri, R.; Cerf, N.J.; Grangier, Ph. Quantum key distribution using gaussian-modulated coherent states. Nature 2003, 421, 238–241.

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