A small mathematical revision to quantum mechanics could effectively limit the purported infinite capacities of quantum computers—if validated, that is.

After 30 months of fast-paced innovation in quantum algorithms, six research groups are hoping to hit paydirt. But there can be only one big winner—if there is a winner at all.

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. A $5 million prize awaits proof that quantum computers can ...

We speak to Rob Akers, director for computing programmes at UK Atomic Energy Institute, about its new artificial intelligence (AI) supercomputer.

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