NIST demo adds key capability to atom-based radio communications
— Read on phys.org/news/2021-04-nist-demo-key-capability-atom-based.html

NIST demo adds key capability to atom-based radio communications

by National Institute of Standards and Technology

NIST researchers and collaborators determined the direction of an incoming radio signal based on laser measurements at two locations in this sensor filled with a gas of cesium atoms. Credit: NIST