Authors: George Rajna
Now physicists at MIT and elsewhere have for the first time discovered fractal-like patterns in a quantum material-a material that exhibits strange electronic or magnetic behavior, as a result of quantum, atomic-scale effects.  Rice University physicist Qimiao Si began mapping quantum criticality more than a decade ago, and he's finally found a traveler that can traverse the final frontier.  Physicists studying the strange behavior of metal alloys called heavy fermions have made a surprising discovery that could be useful in safeguarding the information stored in quantum bits, or qubits, the basic units of encoded information in quantum computers.  Properties of complex materials are often determined by the interplay of several electron properties. TU Wien (Vienna) has now succeeded in disentangling this mess.  Physicists have found "electron pairing," a hallmark feature of superconductivity, at temperatures and energies well above the critical threshold where superconductivity happens.  It was a three-hour nighttime road trip that capped off a journey begun seven years ago.  Discovered more than 100 years ago, superconductivity continues to captivate scientists who seek to develop components for highly efficient energy transmission, ultrafast electronics or quantum bits for next-generation computation.  One of the greatest mysteries in condensed matter physics is the exact relationship between charge order and superconductivity in cuprate superconductors.  Cuprates hold the record high superconducting temperature at ambient pressure so far, but understanding their superconducting mechanism remains one of the great challenges of physical sciences listed as one of 125 quests announced
Comments: 59 Pages.
[v1] 2019-10-17 07:02:08
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