Abstract
Consider the example of a classical system with electric
or magnetic field homogeneous of degree -1. Generically
there will be a finite number of directions in space in
which a particle can move freely to infinity. These
orbits can be stable or unstable depending on the behavior
of the linearized equations. In a framework which
generalizes these examples, we show that there are no
quantum states corresponding to unstable classical
channels. This is joint work with Erik Skibsted.
Contact person:Arne Jensen.