Directed motion for delta-kicked atoms with broken symmetries: comparison between theory and experiment
Quantum Physics
2009-11-10 v2
Abstract
We report an experimental investigation of momentum diffusion in the delta-function kicked rotor where time symmetry is broken by a two-period kicking cycle and spatial symmetry by an alternating linear potential. We exploit this, and a technique involving a moving optical potential, to create an asymmetry in the momentum diffusion that is due to the classical chaotic diffusion. This represents a realization of a type of Hamiltonian quantum ratchet.
Keywords
Cite
@article{arxiv.quant-ph/0309149,
title = {Directed motion for delta-kicked atoms with broken symmetries: comparison between theory and experiment},
author = {P. H. Jones and M. Goonasekera and D. R. Meacher and T. Jonckheere and T. S. Monteiro},
journal= {arXiv preprint arXiv:quant-ph/0309149},
year = {2009}
}
Comments
5 pages, 5 figures Now includes experimental data on time evolution and comparison with theory