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This is fundamental condensed-matter physics: the first observation of bound states in the continuum for electrons in a metal, in the compound Pd5AlI2. The authors frame it as a route to controlling quantum states in metallic materials, but no device or computing application is demonstrated. Readers should treat it as a physics result with possible long-term relevance to quantum hardware, not a near-term technology change.
Columbia team sees quantum effect in electron movement
Columbia University researchers observed trapped electron waves in the metal Pd 5 AlI 2 , a phenomenon predicted by quantum mechanics.
Credit: Raquel Queiroz, Columbia University · quantum.columbia.edu Researchers at Columbia University have, for the first time, observed trapped electron waves within a metal, a phenomenon predicted by quantum mechanics but previously unseen. “Quantum mechanics predicts that an electron wave can, theoretically, remain trapped even when there are infinitely many paths for it to escape,” said Raquel Queiroz, a theoretical physicist, suggesting new avenues for manipulating quantum states in metallic materials. The findings reveal that electrons in experience “frustration” due to the arrangement…
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