The role of quasi-momentum in the resonant dynamics of the atom-optics kicked rotor

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We examine the effect of the initial atomic momentum distribution on the dynamics of the atom-optical realisation of the quantum kicked rotor. The atoms are kicked by a pulsed optical lattice, the periodicity of which implies that quasi-momentum is conserved in the transport problem. We study and compare experimentally and theoretically two resonant limits of the kicked rotor: in the vicinity of the quantum resonances and in the semiclassical limit of vanishing kicking period. It is found that for the same experimental distribution of quasi-momenta, significant deviations from the kicked rotor model are induced close to quantum resonance, while close to the classical resonance (i.e. for small kicking period) the effect of the quasi-momentum vanishes.
10 pages, 4 figures, to be published in J. Phys. A, Special Issue on 'Trends in Quantum Chaotic Scattering'

Keywords

Atomic Physics, Chaotic Dynamics, Quantum Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/101440

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/physics/0505143
 http://arxiv.org/abs/physics/0505143
 J. Phys. A: Math. Gen. 38, 10549 (2005)
 doi:10.1088/0305-4470/38/49/007

Collections

arXiv