International. To record sound lower than a proton, which has been defined as a phonon, a group of researchers from Chalmers University of Technology in Sweden have created the quantum microphone.
According to the researchers, the quantum microphone can record sound waves of trillionths of a meter in amplitude, that is, the subtlest and weakest sound in the universe, which have a wide relationship with quantum acoustics.
The phonon reaches a frequency close to gigahertz, which means a high high level that it could well replace light for technological use. It should be remembered that humans only hear 20 kilohertz due to our biological limitations. The phonon is the equivalent in sound to the photon.
The applications for this new technological development are very important, because scientists identified that the phonon will be a determining factor in developing the quantum computers of the future.
The quantum microphone works by a semiconductor chip cooled to temperatures very close to zero, which gives it wide sensitivity. With this equipment, a whole new field of action opens up for researchers, because the phonon has not been seen in action before and its behavior can be studied.
