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A Deterministic and Storable Single-Photon Source Based on Quantum Memory

Shuai Chen·Yu-Ao Chen·Thorsten Strassel·Zhen-Sheng Yuan·Bo Zhao·Jörg Schmiedmayer·Jian-Wei Pan
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Abstract

A single photon source is realized with a cold atomic ensemble ($^{87}$Rb atoms). In the experiment, single photons, which is initially stored in an atomic quantum memory generated by Raman scattering of a laser pulse, can be emitted deterministically at a time-delay in control. It is shown that production rate of single photons can be enhanced by a feedback circuit considerably while the single-photon quality is conserved. Thus our present single-photon source is well suitable for future large-scale realization of quantum communication and linear optical quantum computation.

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Shuai Chen, Yu-Ao Chen, Thorsten Strassel, Zhen-Sheng Yuan, Bo Zhao, Jörg Schmiedmayer, Jian-Wei Pan. 2006-07-05. A Deterministic and Storable Single-Photon Source Based on Quantum Memory. https://doi.org/10.1103/physrevlett.97.173004

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