Scientists Successfully Teleport Quantum Light 30 Kilometers Through Active Internet Cables

Feb 09, 2026
ScienceAlert
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Summary

Scientists successfully teleport quantum light 30 kilometers through active fiber optic cables carrying regular internet traffic at 400 gigabits per second, proving quantum and classical networks can share existing infrastructure for future quantum computing and enhanced encryption.

Key Points

  • Scientists successfully teleport a quantum state of light through 30 kilometers of fiber optic cable while regular internet traffic flows simultaneously at 400 gigabits per second
  • Researchers use specialized techniques to minimize light scattering and place photons at optimal wavelengths to avoid interference with classical internet communications
  • This breakthrough demonstrates that quantum and classical networks can share existing fiber optic infrastructure, paving the way for quantum-connected computing networks and enhanced encryption without building new infrastructure

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