We extend the semiclassical theory of scarring of quantum eigenfunctions by classical periodic orbits to include situations where these orbits undergo generic bifurcations.
The study of how quantum systems, whose classical counterparts are chaotic, behave in the semiclassical limit has been called quantum chaos.
Structure in the angular distributions is analyzed using a semiclassical optical model.
This is known as the semiclassical approximation because its validity lies somewhere between that of classical and quantum physics.
The semiclassical quantization of the normal form has been investigated and in some cases a very good agreement with quantum results was found.