Is a rubidium cell with long decay time always useful for generating a non-classical photon pair?
Quantum Physics
2008-12-22 v1
Abstract
We experimentally find an interesting and unexpected thing: a rubidium cell with long decay time can not be used to generate a non-classical correlated photon pair via the D2 transition of Rb using four-wave mixing configuration [Opt. Express {\bf 16}, 21708 (2008)]. In this work, we give a detail theoretical analysis on the EIT of hot Rb with different ground decay time, which shows a probable reason why a rubidium cell with long decay time is not a useful candidate for preparation of a non-classical photon pair via the D2 transition. The simulations agree well with the experimental results. We believe our find is very instructive to such kind of research.
Cite
@article{arxiv.0812.3701,
title = {Is a rubidium cell with long decay time always useful for generating a non-classical photon pair?},
author = {Qun-Feng Chen and Xiao-Song Lu and Bao-Sen Shi and Guang-Can Guo},
journal= {arXiv preprint arXiv:0812.3701},
year = {2008}
}
Comments
3 pages, 5 figures