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Ordinary wires: electrons jostle, lose energy, and heat up: that's resistance. In superconductors, some electrons pair up in sync, like dancers swirling without collisions. But these pairs hide: you can't see them directly, only infer their presence from flawless coordination.

Scientists used an analog of spectroscopy (a method that identifies substances by their light 'fingerprint') on the quantum computer. The machine simulated the standard model of a material, named after Enrico Fermi, and acted like a camera revealing the hidden dancing pairs. As the model cooled, entropy (a measure of disorder) dropped, and the pairs became clear.

This is a step toward superconductivity without deep cold. Losses in wires will vanish, levitating trains will appear, and medical scanners will become cheaper.