Abstract
We show that wave functions in planar rational polygonal billiards (all angles rationally related to can be expanded in a basis of quasistationary and spatially regular states. Unlike the energy eigenstates, these states are directly related to the classical invariant surfaces in the semiclassical limit. This is illustrated for the barrier billiard. We expect that these states are also present in integrable billiards with point scatterers or magnetic-flux lines.
- Received 18 August 2000
DOI:https://doi.org/10.1103/PhysRevE.64.026212
©2001 American Physical Society