Engineers achieve quantum teleportation over active internet cables

Quantum information transmitted via active internet cables.

: Northwestern University engineers achieved quantum teleportation over fiber optic cables carrying internet traffic, as reported in Optica. This research paves the way for integrating quantum and classical networks, offering new levels of speed and security. The method involves entangled photons and specialized filters to handle light scattering. Future experiments aim to extend transmission distances and explore real-world applications.

Engineers at Northwestern University have successfully demonstrated quantum teleportation over active internet cables, marking a significant breakthrough. This achievement, detailed in the journal Optica, has the potential to revolutionize communication by integrating quantum and traditional networks, facilitating fast and secure information transfer.

The team, led by Professor Prem Kumar, developed a technique using quantum entanglement and meticulous analysis of light scattering within fiber optic cables. By assigning specific wavelengths and employing noise-reducing filters, they achieved the transmission of quantum information amidst heavy internet traffic across a 30-kilometer cable.

Going forward, the researchers plan to extend their work over longer distances, with the aim of implementing entanglement swapping using multiple photon pairs. They are also considering conducting experiments with in-ground optical cables outside of laboratory conditions to further validate their findings.

Quantum teleportationFiber opticsQuantum communication