Non-classical photon streams using rephased amplified spontaneous emission
Quantum Physics
2010-08-05 v3
Abstract
We present a fully quantum mechanical treatment of optically rephased photon echoes. These echoes exhibit noise due to amplified spontaneous emission, however this noise can be seen as a consequence of the entanglement between the atoms and the output light. With a rephasing pulse one can get an "echo" of the amplified spontaneous emission, leading to light with nonclassical correlations at points separated in time, which is of interest in the context of building wide bandwidth quantum repeaters. We also suggest a wideband version of DLCZ protocol based on the same ideas.
Cite
@article{arxiv.0906.4388,
title = {Non-classical photon streams using rephased amplified spontaneous emission},
author = {Patrick M. Ledingham and William R. Naylor and Jevon J. Longdell and Sarah E. Beavan and Matthew J. Sellars},
journal= {arXiv preprint arXiv:0906.4388},
year = {2010}
}
Comments
5 pages, 4 figures. Added sections