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arXiv · 1510.05358

Storage of multiple single-photon pulses emitted from a quantum dot in a solid-state quantum memory

Jian-Shun Tang·Zong-Quan Zhou·Yi-Tao Wang·Yu-Long Li·Xiao Liu·Yi-Lin Hua·Yang Zou·Shuang Wang·De-Yong He·Geng Chen·Yong-Nan Sun·Ying Yu·Mi-Feng Li·Guo-Wei Zha·Hai-Qiao Ni·Zhi-Chuan Niu·Chuan-Feng Li·Guang-Can Guo
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Abstract

Quantum repeaters are critical components for distributing entanglement over long distances in presence of unavoidable optical losses during transmission. Stimulated by Duan-Lukin-Cirac-Zoller protocol, many improved quantum-repeater protocols based on quantum memories have been proposed, which commonly focus on the entanglement-distribution rate. Among these protocols, the elimination of multi-photons (multi-photon-pairs) and the use of multimode quantum memory are demonstrated to have the ability to greatly improve the entanglement-distribution rate. Here, we demonstrate the storage of deterministic single photons emitted from a quantum dot in a polarization-maintaining solid-state quantum memory; in addition, multi-temporal-mode memory with $1$, $20$ and $100$ narrow single-photon pulses is also demonstrated. Multi-photons are eliminated, and only one photon at most is contained in each pulse. Moreover, the solid-state properties of both sub-systems make this configuration more stable and easier to be scalable. Our work will be helpful in the construction of efficient quantum repeaters based on all-solid-state devices

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Jian-Shun Tang, Zong-Quan Zhou, Yi-Tao Wang, Yu-Long Li, Xiao Liu, Yi-Lin Hua, Yang Zou, Shuang Wang, De-Yong He, Geng Chen, Yong-Nan Sun, Ying Yu, Mi-Feng Li, Guo-Wei Zha, Hai-Qiao Ni, Zhi-Chuan Niu, Chuan-Feng Li, Guang-Can Guo. 2015-10-19. Storage of multiple single-photon pulses emitted from a quantum dot in a solid-state quantum memory. https://doi.org/10.1038/ncomms9652

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