Dapeng Yu

An ordinary wave in a magnet is like ripples on water: the shorter the wavelength, the higher the energy. Physicists call such waves magnons. But in a thin film of bismuth yttrium iron garnet, they managed to create waves with the opposite behavior: their energy decreases as the wavelength gets shorter. These are antimagnons.

A quantum computer is like an orchestra where every musician plays their part, but the slightest thing throws them off. Errors in qubits happen constantly: an instrument goes out of tune, a musician misses a note. Usually, the conductor has to guess who made the mistake, and that's really hard.

A photon is like a car in a multi-story parking lot, where each floor is its frequency (color). Usually it gets stuck on one level, but scientists added an elevator — a programmable modulator that moves the photon between floors on command.