Sonic Boom: Breaking the “Sound Barrier”
Normally, when electricity moves through a wire or a chip, it creates friction. This friction generates heat, which is why your phone gets warm after a long call. In the world of physics, this heat is just “messy” vibration.
According to PHYS.ORG, the McGill team, led by Associate Professor Michael Hilke, decided to change the rules by chilling a ultra-thin 2D crystal to near absolute zero. At these temperatures, electrons stop acting like individual particles and start behaving like waves.
The breakthrough happened when the researchers pushed electrons through a channel only a few atoms thick at supersonic speeds; faster than the speed of sound within that material.
At these extreme speeds, the electrons stop creating random heat and instead release energy in perfectly timed, predictable bursts of vibrations called phonons (quantized units of sound). It is essentially a “sonic boom” on a quantum scale that transforms electricity into a coherent stream of sound.
We currently rely on light (photons) for almost all high-speed communication, from fiber optics to Wi-Fi. But light has limits: it cannot travel through the ocean or deep through opaque biological tissues.
Sound, however, can. By mastering “Phononics” (art of quantum sonic booms), several futuristic possibilities can be unlocked:
- Underwater Wi-Fi: Sound travels exceptionally well in water, whereas light and radio waves are quickly absorbed.
- Advanced Medical Imaging: “Phonon lasers” could see inside the human body with precision that traditional ultrasound or X-rays cannot match.
- Faster, Cooler Computers: By converting electrical energy into sound instead of heat, we could build devices that don’t overheat even at extreme processing speeds.
The team is now looking into using graphene to make these devices even faster and more efficient.
Like this science oriented news? Read our previous article here.
