[verisimi]

> This allowed them to design and map this very complicated problem onto a relatively small quantum device ­– and then slow the process down by a factor of 100 billion.

They say they mapped the problem.... So is this a model of an observation, or an actual observation?

> “Until now, we have been unable to directly observe the dynamics of ‘geometric phase’; it happens too fast to probe experimentally.

> “Using quantum technologies, we have addressed this problem.”

'cos if its a model, they are obviously still not observing whatever-it-is directly, right?

PS I'm pretty sure they are talking about their model.