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One Step Closer to a Quantum Internet

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GARCHING, Germany, April 11, 2012 — Communications networks are vital for our day-to-day lives, and now the first prototype of a quantum one has been developed based on interfaces between single atoms and photons. For a quantum network to be useful, the exchange of quantum information must be reversible. This is difficult because quantum information is very fragile, and the no-cloning theorem prevents the copying of an arbitrary known quantum state. A breakthrough in solving this problem has been achieved by a group led by professor Gerhard Rempe of the Max Planck Institute of Quantum Optics (MPQ). This team has developed...Read full article

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