Quantum radio receiver uses laser light and atomic resonance to detect microwaves

Bridging light, microwaves and electrons for precision calibration

29.10.2025 - Researchers have developed a method to calibrate electron spectrometers with extreme accuracy by linking microwave, optical, and free-electron frequencies.

Quantum radio receiver uses laser light and atomic resonance to detect microwaves

Berlin, Germany (SPX) Oct 27, 2025 Researchers at the University of Warsaw's Faculty of Physics and the Centre for Quantum Optical Technologies (QOT) have created a new class of all-optical radio receivers that operate using the quantum properties of Rydberg atoms. Powered entirely by laser light, the system eliminates traditional metal antennas and offers self-calibrating, ultra-sensitive detection of radio signals. The br