Google’s Willow quantum chip
Many researchers believe that the only way to build unambiguous quantum computers is to enable them to correct their mistakes. A breakthrough by Google Quantum AI researchers in December charted a path to making this a practical reality. Their approach, however, may already be in danger of becoming outdated.
A big factor preventing quantum computers from fulfilling their promise – solving seemingly intractable problems in materials science, chemistry, logistics and many other fields – is that they constantly make mistakes.
