Atomic Frequency Comb (AFC) protocol has been particularly successful recently to demonstrate the storage of quantum information in a solid medium (rare-earth doped crystals). The AFC is inspired by the photon-echo technique. We show in this paper that the AFC is actually closely related to the slow-light based storage protocols extensively used in atomic vapours. Experimental verifications are performed in thulium doped YAG (Tm3+:YAG). We clarify the interplay between absorption and dispersion and propose a classification of the existing protocols.
@article{arxiv.1112.0338,
title = {Atomic Frequency Comb storage as a slow-light effect},
author = {M. Bonarota and J. -L. Le Gouët and S. A. Moiseev and T. Chanelière},
journal= {arXiv preprint arXiv:1112.0338},
year = {2015}
}
Comments
Submitted to: J. Phys. B: At. Mol. Opt. Phys., Special Issue on Quantum Memory; revised introduction, figure 1 added