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BT tests quantum radio receivers that could boost 5G coverage

By Sandra Helsel posted 19 May 2022

(TechRadar) Steve McCaskill reports on BT’s trial testing a new ‘hyper-sensitive’ quantum radio receiver that could boost the capabilities of 5G and Internet of Things (IoT) networks by reducing energy consumption and boosting coverage. IQT-News summarizes
The receivers use ‘excited atoms’ to achieve 100 times greater sensitivity than conventional radio equipment thanks to a quantum effect called ‘electromagnetically induced transparency’ that forms a highly sensitive electric field detector.
Because the atomic radio frequency (RF) receivers are more sensitive, they could be deployed in areas where it’s impractical or not cost-effective to deploy mobile infrastructure. This would make nationwide 5G coverage a reality.
BT’s engineers successfully sent digitally-encoded messages using the technology via EE’s 3.6GHz spectrum. The use of commercially-licensed frequencies could accelerate the timetable for the receivers to be used in the real world.
“BT’s investment in cutting edge R&D plays a central role in ensuring the UK remains a network technology leader,” said Howard Watson, BT chief technology officer (CTO). “ Our programme has huge potential to boost the performance of our next generation EE network and deliver an even better service to our customers. Although it’s early days for the technology, we’re proud to be playing an instrumental role in developing cutting edge science.”
BT’s interest in quantum technology has seen it and Toshiba build the world’s first commercial quantum-secured metro network using standard fibre cables in London.

The UK government has expressed a desire to be at the forefront of the field, believing quantum computing can play a vital role in the connected economy and accelerate Industrial Internet of things (IIoT) deployments. A National Quantum Computing Centre (NQCC) is expected to open in 2022 as part of the £1 billion National Quantum Technologies Programme.

Sandra K. Helsel, Ph.D. has been researching and reporting on frontier technologies since 1990. She has her Ph.D. from the University of Arizona.

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