6 ms·

The first such device out of North America. Why so few?

• cwillu 4y ago
  The short answer is because D-Wave machines are useless for actual problems. https://www.forbes.com/sites/alexknapp/2011/05/24/q-and-a-with-prof-scott-aaronson-on-d-waves-quantum-computer/ https://www.forbes.com/sites/alexknapp/2011/05/24/q-and-a-wi... goes into the details, very little has changed in ten years. “One thing this means, in particular, is that any claims by D-Wave that the practical value of quantum annealing has already been demonstrated need to be taken with a huge grain of salt.” https://www.scientificamerican.com/article/d-wave-scientists-line-up-for-world-rsquo-s-most-controversial-quantum-computer/ https://www.scientificamerican.com/article/d-wave-scientists... “D-wave machines are a long way from showing the exponential speed increase over classical computers that their advocates hope to see. But in a paper posted on January 17 and not yet peer-reviewed, a D-Wave team claimed the 2000Q could find solutions up to 2,600 times faster than any known classical algorithm (J. King et al. Preprint at arXiv https://arxiv.org/abs/1701.04579 https://arxiv.org/abs/1701.04579; 2017). Now the onus will be on sceptics to try to find a faster classical algorithm. “All I know is that, in the now two or three previous cases where we were in this same situation, it did turn out that a different classical solver eliminated the claimed gap,” says Scott Aaronson, a computer scientist at the University of Texas at Austin.”