Key To The Quantum Industry

October 2008 SECOQC International Conference. Seven are two links are combined physically distributed in a new quantum back - bone network key to the quantum industry in a typical Metropolitan for the connection of several companies of slots from SIEMENS in Austria. Typical applications for two, to protect the traffic of telephony and videoconferencing, are also included in the demo. The attraction of quantum cryptography is that the security is based on the laws of nature. Unlike the quantum existing key traditional key distribution is not called the key distribution, transport, because it is created immediately in the receptor site. In addition, is the key to a completely random order, usually creates a difficult task in conventional systems. After all, who wants to hear just to cause of the fragility of the distribution of the key quantum qubits by detected callee. . . . . .