Physicists Finally Observe a Link Between Quantum Criticality And Entanglement

We know that the realm of quantum physics is science operating at a mind-bogglingly small scale, thus watching quantum interactions happen is always exciting. Now, physicists have managed to observe billions upon billions of entangled electrons passing through a metal film.

The film is a mix of ytterbium, rhodium and silicon, and is what’s known as a ‘strange metal’, one that doesn’t act as expected at very low temperatures.

“With strange metals, there is an unusual connection between electrical resistance and temperature,” explained physicist Silke Bühler-Paschen from Vienna University of Technology in Austria.

“In contrast to simple metals such as copper or gold, this does not seem to be due to the thermal movement of the atoms, but to quantum fluctuations at the absolute zero temperature.”

These fluctuations represent a quantum criticality – that point between quantum states which are the equivalent of transition between liquids, solids and gases in classical physics; the team says this cascade of electrons is the best evidence yet of a link between quantum criticality and entanglement.

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Decoding the Secrets of Superconductivity

Experimentalists have pinpointed the microscopic structure of waves inside high-temperature superconductors, which could be the key to understanding the complex materials.

The microscopic structure of high-temperature superconductors has long puzzled scientists seeking to harness their virtually limitless technological potential. Now at last researchers have deciphered the cryptic structure of one class of the superconductors, providing a basis for theories about how they manage to transport electricity with perfect efficiency when cooled, and how scientists might raise their operating temperature closer to the climes of everyday life.

This goal, if realized, could make an array of fantastical-sounding technologies commercially viable, from power grids that never lose energy and cheap water purification systems to magnetically levitating vehicles. Scientists believe room-temperature superconductivity would have an impact on a par with that of the laser, a 1960 invention that now plays an important role in an estimated $7.5 trillion in economic activity.

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Physicists Have Found an Entirely New Type of Superconductivity

One of the ultimate goals of modern physics is to unlock the power of superconductivity, where electricity flows with zero resistance at room temperature.

Progress has been slow, but in 2018, physicists have made an unexpected breakthrough. They discovered a superconductor that works in a way no one’s ever seen before – and it opens the door to a whole world of possibilities not considered until now.

In other words, they identified a brand new type of superconductivity.

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