Harvard physicists and Amazon have transmitted an entangled photon over 35 km of fiber-optic cable.

The experiment is a step towards a secure, unhackable quantum communications network.

Published findings in Nature indicate potential for long-distance quantum communication.

A global quantum network would protect data against threats posed by future quantum computers.

Ongoing research focuses on expanding network capabilities and testing additional protocols.

Advancements may safeguard decentralized finance and digital assets from network attacks.