Back to today’s briefing

Story perspectives

Breakthrough Quantum Key Distribution Achieved Over 100 Kilometers

2/6/2026

50 8 Full Breakdown

Summary

Story summary

Pan Jianwei of the University of Science and Technology of China led a team that demonstrated device-independent quantum key distribution (DI-QKD) over 100 kilometers of optical fiber.
The researchers used rubidium atoms and single photons to create quantum links.
The achievement, published in Science, ensures security even when devices are flawed.
The work advances practical quantum communication by bridging laboratory results and real-world use.

1 of 1

Story summary

Pan Jianwei of the University of Science and Technology of China led a team that demonstrated device-independent quantum key distribution (DI-QKD) over 100 kilometers of optical fiber.
The researchers used rubidium atoms and single photons to create quantum links.
The achievement, published in Science, ensures security even when devices are flawed.
The work advances practical quantum communication by bridging laboratory results and real-world use.