Stochastic resonance in periodic potentials: realization in a dissipative optical lattice
Quantum Physics
2007-05-23 v1
Abstract
We have observed the phenomenon of stochastic resonance on the Brillouin propagation modes of a dissipative optical lattice. Such a mode has been excited by applying a moving potential modulation with phase velocity equal to the velocity of the mode. Its amplitude has been characterized by the center-of-mass (CM) velocity of the atomic cloud. At Brillouin resonance, we studied the CM-velocity as a function of the optical pumping rate at a given depth of the potential wells. We have observed a resonant dependence of the CM velocity on the optical pumping rate, corresponding to the noise strength. This corresponds to the experimental observation of stochastic resonance in a periodic potential in the low-damping regime.
Cite
@article{arxiv.quant-ph/0212156,
title = {Stochastic resonance in periodic potentials: realization in a dissipative optical lattice},
author = {Michele Schiavoni and Francois-Regis Carminati and Laurent Sanchez-Palencia and Ferruccio Renzoni and Gilbert Grynberg},
journal= {arXiv preprint arXiv:quant-ph/0212156},
year = {2007}
}