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Quantum Cryptography Systems Theory Single Photon Sources Charles Bennett, IBM Research Yorktown Heights, New York www.research.ibm.com/people/b/bennetc Gilles Brassard, University of Montreal Montreal, Canada www.iro.umontreal.ca/labs/theorique/index.html.en Artur Ekert, University of Oxford Oxford, England www.qubit.org/people/artur/index.html Daniel Gottesman, University of California at Berkeley Berkeley, California www.cs.berkeley.edu/~gottesma Gregg Jaeger, Boston University Boston, Massachusetts people.bu.edu/jaeger Andrew C. Yao, Princeton University Princeton, New Jersey www.cs.princeton.edu/~yao What to Look For Equipment and capabilities: Electric, room-temperature single-photon sources Gigahertz single-photon sources Efficient sources of entangled photons Gigahertz entangled-photon sources Efficient room-temperature photon detectors Gigahertz photon detectors Quantum repeaters or relays Gigahertz quantum repeaters Multi-photon quantum cryptography Implementations: Gigabit-per-second point-to-point Via satellite On a network On the Internet Threat levels: 10-qubit quantum computer (practical quantum systems possible) 100-qubit quantum computer (large-scale within a decade) 1,000-qubit quantum computer (encryption codes compromised) |
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