PhysicsHow a century-long argument over light’s true nature came to an end Two of the forefathers of quantum theory, Albert Einstein and Niels Bohr, had a famous argument over whether light is a wave or a particle. Columnist Karmela Padavic-Callaghan finds that the matter has been settled once and for all Comment
TechnologyPhantom codes could help quantum computers avoid errors A method for making quantum computers less error-prone could let them run complex programs such as simulations of materials more efficiently, thus making them more useful News