Military researchers report developmenta small quantum sensor that allows you to detect communication signals across the entire RF spectrum from 0 to 1 THz. For such coverage using traditional receivers, many systems with separate antennas, amplifiers, and other components were required.
Last year, hypersensitive Rydbergatoms were first used to detect electric fields and communication signals. However, no one had previously quantitatively described their sensitivity forthe entire working range.
Research team fromThe US Army Research Laboratory became interested in this area, and, based on fundamental principles, calculated the channel capacity of such a quantum receiver, and then confirmed it experimentally.
As a result, they created a small and practically nodetectable sensor that is sensitive to fluctuations in electric fields in the range 0 to 1012 Hz. Quantum mechanics allows not only to determine signals over the entire spectrum, but also to accurately calibrate the system, as well as to adjust its final performance.
According to the developers, this device will allowequip the next generation of military sensors, will contribute to the development of new concepts of communication and signal detection for positioning.
Earlier, we also reported that the researchers proposed the concept of a new material that can conduct both electrons and photons.
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