Temporal Dynamics of Photon Pairs Generated by an Atomic Ensemble
Quantum Physics
2009-11-10 v1
Abstract
The time dependence of nonclassical correlations is investigated for two fields (1,2) generated by an ensemble of cold Cesium atoms via the protocol of Duan et al. [Nature Vol. 414, p. 413 (2001)]. The correlation function R(t1,t2) for the ratio of cross to auto-correlations for the (1,2) fields at times (t1,t2) is found to have a maximum value Rmax=292(+-)57, which significantly violates the Cauchy-Schwarz inequality R<=1 for classical fields. Decoherence of quantum correlations is observed over 175 ns, and is described by our model, as is a new scheme to mitigate this effect.
Cite
@article{arxiv.quant-ph/0406050,
title = {Temporal Dynamics of Photon Pairs Generated by an Atomic Ensemble},
author = {S. V. Polyakov and C. W. Chou and D. Felinto and H. J. Kimble},
journal= {arXiv preprint arXiv:quant-ph/0406050},
year = {2009}
}
Comments
5 pages, 5 figures