Double time-reversal asymmetry could explain weird material behavior

Double time-reversal asymmetry could explain weird material behavior

From ArsTechnica:

 

“One of the fundamental ideas in physics is the existence of broken symmetries. One famous broken symmetry is the Higgs mechanism, which leads to the prediction of one or more Higgs bosons. In materials, broken symmetries of different sorts lead to magnetism, superconductivity—and a bit of strange behavior that has puzzled physicists for three decades. In one particular material, electrons behave as though they are much more massive than usual, and respond very differently to magnetic fields.”

 

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The article ends with:

 

“An intriguing question is whether hastatic order could explain other unusual materials—assuming its existence is confirmed in URu2Si2, of course. Given that other systems have strong interactions between their constituent electrons that give rise to currently puzzling phenomena, it’s possible that the hastatic symmetry idea will bear fruit elsewhere.”

 

Fascinating!

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