Measurements of Diffusion Resonances for the Atom Optics Quantum Kicked Rotor
Quantum Physics
2007-05-23 v2
Abstract
We present experimental observations of diffusion resonances for the quantum kicked rotor with weak decoherence. Cold caesium atoms are subject to a pulsed standing wave of near-resonant light, with spontaneous emission providing environmental coupling. The mean energy as a function of the pulse period is determined during the late-time diffusion regime for a constant probability of spontaneous emission per unit time. Structure in the late-time energy is seen to increase with physical kicking strength. The observed structure is related to Shepelyansky's predictions of the initial quantum diffusion rates.
Keywords
Cite
@article{arxiv.quant-ph/0208090,
title = {Measurements of Diffusion Resonances for the Atom Optics Quantum Kicked Rotor},
author = {M. E. K. Williams and M. P. Sadgrove and A. J. Daley and R. N. C. Gray and S. M. Tan and A. S. Parkins and R. Leonhardt and N. Christensen},
journal= {arXiv preprint arXiv:quant-ph/0208090},
year = {2007}
}
Comments
11 pages, 3 figures, iopart.cls, revised version