title: Quantum chaotic trajectories in integrable right triangular billiards.
abstract: Right triangular billiards are very simple systems that are completely integrable in classical mechanics for acute angle pairs (45 degrees,45 degrees ) and (30 degrees,60 degrees ). In quantum mechanics, the energy level spacing distribution of these billiards are neither Poisson-like nor Wigner-like. We use Bohm's formalism to calculate the trajectories, by numerical methods, for a particle inside these billiards. We use a linear combination of the first three energy states as the initial wave function. We show that a particle can have quasiperiodic or chaotic behavior, depending on its initial position in the billiards.
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, 30.123-970 Belo Horizonte, Minas Gerais, Brazil. jsales@fisica.ufmg.br
authors.forename: J A
authors.initials: JA
authors.lastname: de Sales
authors.forename: J
authors.initials: J
authors.lastname: Florencio