Qubit breakthrough could make it easier to build quantum computers
Could a new approach help make quantum computers error-free?Nord Quantique
A Canadian quantum computing start-up claims its new qubit will enable much smaller and cheaper error-free quantum computers. But getting there will be a steep challenge.
To correct its own errors, a traditional computer saves duplicates of information in multiple places, a practice called redundancy. For quantum computers to achieve their own version of redundancy, they typically require many additional quantum bits, or qubits – hundreds of thousands of them.
Now, Julien Camirand Lemyre at Nord Quantique and his colleagues have created a qubit that they say will let them slash that number to mere hundreds. “The basic underlying idea behind our hardware is… having qubits that have intrinsic redu...