Scientists have developed a new type of computer chip that removes a major obstacle to practical quantum computers, making it possible for the first time to place millions of qubits and their control systems on the same device.The new control chip operates at cryogenic temperatures close to absolute zero (about minus 459.67 degrees Fahrenheit, or minus 273.15 degrees Celsius) and, crucially, can be placed close to qubits without disrupting their quantum state. "This result has been more than a decade in the making, building up the know-how to design electronic systems that dissipate tiny amounts of power and operate near absolute zero," lead researcher David Reilly, professor at the University of Sydney Nano Institute and School of Physics, said in a statement.
