title: Quantum localization of the kicked rydberg atom
abstract: We investigate the quantum localization of the one-dimensional Rydberg atom subject to a unidirectional periodic train of impulses. For high frequencies of the train the classical system becomes chaotic and leads to fast ionization. By contrast, the quantum system is found to be remarkably stable. We find this quantum localization to be directly related to the existence of "scars" of the unstable periodic orbits of the system. The localization length is given by the energy excursion along the periodic orbits.
authors.affiliation: Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200, USA.
authors.initials: S
authors.lastname: Yoshida
authors.initials: CO
authors.lastname: Reinhold
authors.initials: J
authors.lastname: Burgdorfer