'This result has been more than a decade in the making': Millions of qubits on a single quantum processor now possible after cryogenic breakthrough

Scientists have developed a computer chip operating near absolute zero, enabling integration of millions of qubits and their controls on one device. This breakthrough removes a major obstacle to practical quantum computers by combining quantum and classical components without disrupting the qubits' fragile state. The custom CMOS chip consumes minimal power and introduces no measurable electrical noise, paving the way for scalable quantum processors.