The Iterative Unitary Matrix Multiply Method and Its Application to Quantum Kicked Rotator
arXiv:0709.2395
Abstract
We use the iterative unitary matrix multiply method to calculate the long time behavior of the resonant quantum kicked rotator with a large denominator. The delocalization time is exponentially large. The quantum wave delocalizes through degenerate states. At last we construct a nonresonant quantum kicked rotator with delocalization.
5 pages, 2 figures