Quantum Teleportation Achieved Over Active Internet Cables in Breakthrough Study

Northwestern University researchers successfully transmitted quantum information alongside high-speed internet traffic using existing fiber optic infrastructure.

Scientists at Northwestern University demonstrated quantum teleportation across a 30-kilometer fiber optic cable carrying 400 Gbps of classical internet traffic.
The breakthrough used quantum entanglement to securely transfer quantum states without physically transmitting particles over long distances.
Researchers overcame interference by identifying less crowded light wavelengths and implementing specialized filters to protect quantum signals from classical traffic noise.
This development suggests that quantum and classical communications can coexist on shared fiber optic infrastructure, reducing the need for specialized networks.
Future experiments aim to extend distances, test real-world optical cables, and explore advanced techniques like entanglement swapping to further develop distributed quantum networks.