U.K. Researchers Demonstrate Long-Distance Quantum Network Link

Researchers at the U.K.'s universities of Bristol and Cambridge developed a quantum communications network capable of transmitting data over the more than 410 km (nearly 255 miles) separating the institutions. The network uses encryption keys concealed inside light particles and distributed entanglement. The researchers demonstrated the network's ability to transfer encrypted medical data, make a quantum-secure video call, and secure remote access to a distributed datacenter.