Error-correcting codes: Is the quantum computer possible?

Quantum error-correcting codes were developed by mathematicians to check the variability of the state of each qubit. But are the codes relevant in practical terms? A physicist at IRIG investigated the issue and his conclusions are not optimistic. He noted that the theories use error models that fail to factor in errors that are rare, but that are nevertheless detrimental to computing precision.

In concrete terms, the error-correcting codes would have to make these errors a quadrillion times less frequent for the quantum computer to produce reliable results. Needless to say, this hypothesis is very unlikely. The study, published in Physical Review, is one of the first to issue a negative verdict, garnering substantial interest.

Contact: xavier.waintal@cea.fr

Facebook

Twitter