Holy mother of... It's so awesome to see quantum influences on a macro scale. This is the nature of things, but we just aren't normally privy to it.
I don't know anything about magnetic locking, but I did some superconducter modeling work as an undergrad. The crazy thing about quantum systems, is that every particle acts in unison. And, there is no informational transfer necessary from one side of the system to the other to do so. Identity can span over space and time. In this case, a noticeable amount of it. But, every MRI machine works on this crazy principal. We do use this stuff.