For the first time, researchers teleported a quantum state (a single photon) across 30.2 kilometers (about 19 miles) of fiber-optic cable while that same cable carried 400 gigabits per second of normal internet data. What makes this special is they didn’t need separate, dedicated lines for the quantum information. “Nobody thought it was possible,” said Prem Kumar, who led the Northwestern research team. “This shows a path to unified fiber infrastructure” where both types of information can travel together. The achievement matters because previous attempts required isolated quantum-only cables, which would be extremely expensive to build alongside our existing internet. … Continue reading Quantum Teleportation Breakthrough: Northwestern Scientists Send Data Through 30km Internet Cable With 400 Gbps Traffic