The mathematician who reshaped physics
It’s been 40 years since physicist Klaus von Klitzing discovered the quantum Hall effect — and 37 since mathematical physicist Barry Simon linked the strange phenomenon to topology. Topology — the study of objects that deform continuously without tearing — explained the surprising effect that triggered a wave of ideas in physics and underpins our international system of units based on fundamental constants. “I knew it would make a splash,” says Simon of his description of this topological effect, called a ‘winding number’. “I didn’t realize it would have this long-lasting impact in solid-state physics.”
Nature | 5 min readRead the whole collection of Review, News and Commentary articles from various Nature Research journals celebrating the diverse legacy of the quantum Hall effect.
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