A quantum sensor could give soldiers a way to detect communication signals over the entire radio frequency spectrum, from 0 to 100 GHz, said researchers from the U.S. Army. Such wide spectral coverage by a single antenna is impossible with a traditional receiver system, and would require multiple systems of individual antennas, amplifiers and other components.
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| Rydberg atoms are optically excited to Rydberg states that detect incoming radiofrequency fields in this artist’s interpretation (Picture source: U.S. Army) |
