First Quantum Cryptography Network Up
Friday, June 4th, 2004New Scientist is reporting that the first communication network protected by the Heisenberg Uncertainty Principal has been activated in Cambridge, Massachusetts:
First Quantum Cryptography Network Unveiled
The article states that the network linking six systems at Harvard University and BBN’s Cambridge, MA office is secured by keys exchanged with single known spin photons. It currently is limited to a range of 20Km due to noise degradation.