Insider Brief

NIST researchers and collaborators demonstrated the transmission of entangled photons through 62 kilometers of existing above-ground fiber infrastructure, supporting research into practical quantum networks.

The team used real-time polarization stabilization technology developed by Qunnect to maintain photon entanglement despite environmental disturbances affecting the fiber.

The experiment distributed entangled photons at a rate of 1,500 per second and maintained entanglement for 92.8% of a 24-hour test period.

This article is based on reporting and material published by the National Institute of Standards and Technology (NIST).