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arXiv · 0812.3701

Is a rubidium cell with long decay time always useful for generating a non-classical photon pair?

Qun-Feng Chen·Xiao-Song Lu·Bao-Sen Shi·Guang-Can Guo
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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 $^{87}$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 $^{87}$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.

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Qun-Feng Chen, Xiao-Song Lu, Bao-Sen Shi, Guang-Can Guo. 2008-12-19. Is a rubidium cell with long decay time always useful for generating a non-classical photon pair?. https://arxiv.org/abs/0812.3701

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