Feedback Cooling of a Single Neutral Atom
Quantum Physics
2010-10-26 v2
Abstract
We demonstrate feedback cooling of the motion of a single rubidium atom trapped in a high-finesse optical resonator to a temperature of about 160 \mu K. Time-dependent transmission and intensity-correlation measurements prove the reduction of the atomic position uncertainty. The feedback increases the 1/e storage time into the one second regime, 30 times longer than without feedback. Feedback cooling therefore rivals state-of-the-art laser cooling, but with the advantages that it requires less optical access and exhibits less optical pumping.
Cite
@article{arxiv.1007.1884,
title = {Feedback Cooling of a Single Neutral Atom},
author = {Markus Koch and Christian Sames and Alexander Kubanek and Matthias Apel and Maximilian Balbach and Alexei Ourjoumtsev and Pepijn W. H. Pinkse and Gerhard Rempe},
journal= {arXiv preprint arXiv:1007.1884},
year = {2010}
}
Comments
5 pages, 4 figures