Ich habe mal generell etwas von "Quanten-Geschwindigkeits-Beschränkungen" gelesen. Das gilt wohl ganz allgemein.
https://phys.org/news/2016-06-physic...um-limits.html
How fast can a quantum system evolve in time?
Zitat:
Previous research has shown that there are an infinite number of corresponding metrics that can be used to measure the distinguishability of two quantum states.
In the new study, the physicists have shown that each of these metrics corresponds to a different quantum speed limit. The "strictest" quantum speed limit is determined by the metric that gives the shortest distance (also known as a 'geodesic') between the two points, or states, as measured along the manifold's curved surface.
"A different quantum speed limit arises from each of these metrics in such a way that the tightest bound for a given dynamics is specified by the metric whose geodesic is best tailored to the given dynamical path," explained coauthor Marco Cianciaruso, also at Nottingham.
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