Quantum Feedback Control of Atomic Motion in an Optical Cavity
Quantum Physics
2007-05-23 v3
Abstract
We study quantum feedback cooling of atomic motion in an optical cavity as a prototypical nonlinear quantum control problem. We design a feedback algorithm that can cool the atom to the ground state of the optical potential with high efficiency despite the nonlinear nature of this problem. An important ingredient is a simplified state-estimation algorithm, necessary for a real-time implementation of the feedback loop. We also describe the critical role of parity dynamics in the cooling process and present a simple theory that predicts the achievable steady-state atomic energies.
Cite
@article{arxiv.quant-ph/0310153,
title = {Quantum Feedback Control of Atomic Motion in an Optical Cavity},
author = {Daniel A. Steck and Kurt Jacobs and Hideo Mabuchi and Tanmoy Bhattacharya and Salman Habib},
journal= {arXiv preprint arXiv:quant-ph/0310153},
year = {2007}
}
Comments
5 pages, 4 figures; v2 includes minor corrections (no content change); v3 includes minor wording/figure changes to match published PRL version