Has Google won the race to build the world's first commercial quantum computer? 

The technology company's artificial intelligence lab believe they may finally have proof that their opinion-dividing quantum computer actually works. 

Google and Nasa announced they were collaborating on the D-Wave X2 quantum computer, which they say is 100 million times faster than a conventional computer chip, in 2013. It can answer certain algorithms in seconds rather than years. 

Google director of engineering, Hartmut Neven, said: "For a specific, carefully crafted proof-of-concept problem we achieve a 100-million-fold speed-up."