Scientists Found an Innovative Way of Using Light Waves

supercurents

Recently, a team of scientists discovered an innovative way of using light waves. They released a study detailing how they utilized light waves to access the unique features of the quantum world, and accelerate supercurrents. 

The scientists have found some of the most extraordinary things in supercurrents that contravene symmetry and should be forbidden by the conventional laws of physics. Here are the details you need to know. 

Light Waves Allow the Access to a New Class of Quantum Phenomena

Jigang Wang is a physics and astronomy professor at the Iowa State University and the leader of the recent study. His lab has established the use of light pulses at terahertz frequencies (trillions of pulses/s), to accelerate electron pair, also known as Cooper pairs, within supercurrents. Wang and his team monitored light beamed by the accelerated electrons pairs. They discovered some “second harmonic light emissions,” that are supposed to be forbidden in superconductors.

Their finding shows how light is at twice the frequency of the incoming light utilized to accelerate electrons. Such a thing is similar to color changing from the red spectrum to the deep blue. One of Wang’s collaborators, Ilias Perakis, detailed: “The forbidden light gives us access to an exotic class of quantum phenomena – that’s the energy and particles at the small scale of atoms – called forbidden Anderson pseudo-spin precessions.”

The team’s study has been made possible by an instrument dubbed quantum terahertz spectroscopy. The device can view and steer electrons, and utilizes terahertz laser beams as a control knob to stimulate supercurrents. It can also access potentially and new helpful quantum states of matter. The National Science Foundation believed in Wang and his team and supported the development of the device, and the recent study of forbidden light. Wang explained that he still needs to figure out more things, but his research will soon bring more results.  

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