National Institute of Standards and Technology (NIST) is developing a new technology called “Quantum Radio” to enable communication in places where GPS and cell signals fail, such as underwater or deep underground. This system uses low-frequency magnetic signals that travel better through obstacles like water and building walls than traditional radio waves. The core of the technology involves tiny glass cells containing trapped atoms that act as quantum sensors to detect extremely faint magnetic fields.
Currently, the technology is in the testing phase, with researchers having successfully measured signals as small as one millionth of the Earth’s magnetic field. While this is not yet a formal industry standard, successful implementation could allow mariners, soldiers, and surveyors to exchange messages and create maps in difficult environments. A specific timeline for commercial rollout has not been announced, but the development offers a promising solution for locations where conventional electronics fail.
Keywords: magnetic radio, atomic spin sensors, low-frequency detection
