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Quantum Encryption Codes Sent Over Record Distances

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LOS ALAMOS, N.M., Sept. 26, 2006 -- Using an innovative sensor for detecting single photons, the smallest particles of light, scientists have set two significant distance records for distributing "keys" (or codes) for quantum encryption, the most secure method known for protecting the privacy of information. As described in the September issue of New Journal of Physics, the team from Los Alamos National Laboratory (LANL), the National Institute of Standards and Technology (NIST) in Gaithersburg, Md., and Albion College in Albion, Mich., generated and transmitted secret quantum keys over 184.6 km of fiber-optic cable, the...Read full article

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