Scientists Are Developing A Quantum Sensor Capable Of Picking Up All Radio Frequencies

For the first time, a quantum receiver with supersensitive atoms (Rydberg atoms) was developed by army scientists from the USA in 2018.  R...

For the first time, a quantum receiver with supersensitive atoms (Rydberg atoms) was developed by army scientists from the USA in 2018. Recently, scientists calculated its throughput and achieved productivity in the laboratory. It was decided to use the sensors to detect communication signals in a wide range from 0 to 100 GHz.

Photo: phys.org

It is impossible to cover such a huge spectrum with one antenna; many systems with amplifiers would be required. And the new sensitive sensors are relatively small and difficult to detect. As a result of laboratory experiments, it was found that they accurately detect fluctuations in the electric field over the entire specified range. With such indicators, the new sensor leaves far behind electro-optical crystals and passive electronics with a dipole antenna.

Researchers do not stop there, looking for new methods to increase the sensitivity of the sensor even to the weakest and most complex vibrations. Development can significantly affect new communication concepts and signal detection techniques in general.

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