Evidence of a new phenomenon: Quantum tornadoes in momentum space
SMRTR summary
Würzburg researchers have experimentally confirmed the existence of a quantum tornado, observing electrons forming vortices in momentum space within tantalum arsenide. This discovery could advance quantum technologies like orbitronics, potentially improving electronic component efficiency.
The team used an enhanced ARPES technique combined with quantum tomography to detect and reconstruct the 3D structure of orbital angular momentum. This achievement validates a theory proposed eight years ago and represents a significant advance in quantum materials research.
The project involved international collaboration among scientists from the US, China, Norway, and Germany.
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