Quantum RF Sensing Using Rydberg Atoms

Описание: Quantum RF Sensing Using Rydberg Atoms

10 March 2026

by Mark Bason
RAL Space

For Earth observation, a sensor that detects specific channels of incoherent radiation is needed - a Rydberg Receiver (RR).   In this presentation, I compared RRs to classical radiometers. As RRs are based on the response of an atom to an oscillating electric field, they are conceptually different from a classical antenna. Thus, concepts such as effective apertures must be translated to equivalents of a new modality that uses the language of electric fields rather than RF power.  In addition, one must convert between scene or antenna temperatures to electric field sensitivities. This conversion draws out a natural comparison to low-noise amplifiers (LNAs). A Rydberg atom could be considered an LNA with a highly tunable ‘carrier frequency’ sensitivity range but low instantaneous bandwidth. I discussed current sensitivities/noise temperatures compared to non-cryogenic, off-the-shelf LNAs and conclude by identifying the most promising operation frequencies of RRs, discussing the necessary developmental steps, and likely implications of relevant noise sources.

Webinar sponsored by IEEE Quantum Earth Science and Technology (QUEST) Technical Committee

Learn more: https://www.grss-ieee.org/event/quant...