Superconductor logic goes low-power

Energy-efficient superconducting circuits could be key to future supercomputers - Transistor-based semiconductors have dominated the computing industry since its start. But a much more exotic, transistor-less option has long been lurking in the wings. Superconducting circuits, which boast resistance-less wires and ultrafast switches, can perform the tasks that silicon-based systems do in a fraction of the time.