How Quantum Communications Is Connecting the Future

Why It Matters

A functional quantum network will enable secure, high‑performance links between quantum devices, accelerating commercialization of quantum computing and sensing technologies.

Key Takeaways

• Quantum communications link quantum computers and sensors via entanglement
• Traditional internet cannot preserve quantum states, requiring new hardware
• Oak Ridge Lab demonstrates fiber‑based quantum networking beyond laboratory settings
• Free‑space links aim to extend range using line‑of‑sight optics
• Quantum signals cannot be amplified, so minimizing loss is critical

Summary

Quantum communications connects quantum computers and sensors using entanglement and superposition, properties that conventional internet cannot preserve. In a discussion with Joseph Chapman, a research scientist at Oak Ridge National Laboratory, the technology’s need for dedicated networking hardware and infrastructure is outlined.

Chapman warns that without parallel development of quantum networking, a lag will emerge as quantum processors mature, limiting their utility. The Department of Energy has elevated quantum communications to a strategic priority, funding efforts to build a quantum‑ready backbone.

Oak Ridge has leveraged its existing fiber‑optic network to demonstrate that quantum links can operate outside the lab. The lab is now adding free‑space, line‑of‑sight channels—potentially via satellites—to reduce loss, since quantum signals cannot be amplified.

These advances lay groundwork for a future quantum internet, promising secure communications and distributed quantum computing, and signal a shift in telecom investment toward quantum‑compatible infrastructure.

Original Description

What does it take to build the future of quantum communications?

ORNL research scientist Joseph Chapman explains how quantum communications enables connections between quantum computers and sensors by preserving fragile properties like entanglement and superposition.

At Oak Ridge National Laboratory, researchers are moving this technology beyond the lab, demonstrating quantum networking over real-world fiber infrastructure and expanding to include free-space links for longer-distance communication.

Learn more https://www.ornl.gov/quantum

ORNL is using #BigScience to make a big impact. Learn more: https://www.ornl.gov/bigscience