Phase Coherence and Control of Stored Photonic Information
Quantum Physics
2009-11-07 v1
Abstract
We report the demonstration of phase coherence and control for the recently developed "light storage" technique. Specifically, we use a pulsed magnetic field to vary the phase of atomic spin excitations which result from the deceleration and storing of a light pulse in warm Rb vapor. We then convert the spin excitations back into light and detect the resultant phase shift in an optical interferometric measurement. The coherent storage of photon states in matter is essential for the practical realization of many basic concepts in quantum information processing.
Cite
@article{arxiv.quant-ph/0108046,
title = {Phase Coherence and Control of Stored Photonic Information},
author = {A. Mair and J. Hager and D. F. Phillips and R. L. Walsworth and M. D. Lukin},
journal= {arXiv preprint arXiv:quant-ph/0108046},
year = {2009}
}
Comments
5 pages, 3 figures. Submitted to Phys. Rev. Lett