For more than a century, schoolbook physics has divided matter into neat categories like solid, liquid, gas, and plasma. A wave of recent experiments is now tearing at those boundaries, revealing ...

Deep inside what we perceive as solid matter, the landscape is anything but stationary. The interior of the building blocks of the atom's nucleus -- particles called hadrons that most of us would ...

Researchers have recently identified 'dark electrons'—electrons undetectable using traditional spectroscopy—within solid materials. By examining palladium diselenide, the team discovered states ...

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Scientists in Japan have isolated an important type of electron for further study. Dirac electrons develop in certain conditions where cone-shaped openings appear in solid matter. A new paper ...