It is well known that sound comes at different signals according to the wave length and other factors. Not every single wave length is audible to the human ear; this differs to only a certain range of sounds. However, a study was conducted by a team of researchers from the Delft University of Technology where they wanted to take hearing a step forward.
The study included the creation of a quantum circuit which will allows humans to listen to the lowest radio signals that exists in quantum physics. This technology will change the course of many different fields as the use of quantum signals is a breakthrough. This is generally the case when a signal is too low for our devices to react to it. You could face the same problem with your radio, at certain positions (tunnels) or even with your Wifi signal at positions where the signal is too low.
This circuit can be used to help amplify the weak signals and hence aiding humans to actually make use of the signal. This is used much further with research as MRI scanners can double their efficiency or even telescopes. Mario Gely, the lead researcher in the project explained “Say I am pushing a kid on a swing. In the classical theory of physics, if I want the kid to go a little bit faster I can give them a small push, giving them more speed and more energy. Quantum mechanics says something different: I can only increase the kid’s energy one ‘quantum step’ at a time. Pushing by half of that amount is not possible.”