related to the 5 qubit quantum machine mentioned.

https://news.ycombinator.com/item?id=11241194

http://science.sciencemag.org/content/351/6277/1068

http://arxiv.org/abs/1507.08852

http://arxiv.org/abs/1601.06819

https://news.ycombinator.com/item?id=11235186