Members of some families of error correction codes differ in a fairly simple way: Each step up in size (which may require multiple hardware qubits) means a greater distance. So by adding more hardware ...

Today’s quantum computing hardware is severely limited in what it can do by errors that are difficult to avoid. There can be problems with everything from setting the initial state of a qubit to ...

The real world can be complex and unpredictable, where the behaviors of even the most steady and proven mechanisms can be fraught with unanticipated outcomes. In technological fields, scientists and ...

"Our quantum error-correcting code has a greater than 1/2 code rate, targeting hundreds of thousands of logical qubits," explains Kasai. "Moreover, its decoding complexity is proportional to the ...

Written for you by our author Tejasri Gururaj, edited by Gaby Clark, and fact-checked and reviewed by Robert Egan —this article is the result of careful human work. We rely on readers like you to keep ...