True Single-Photon Stimulated Four-Wave Mixing
True Single-Photon Stimulated Four-Wave Mixing
复制标题
真正的单光子受激四波混合
DOI：
10.1021/acsphotonics.6b01020
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发表时间：
2017
期刊：
影响因子：
7
通讯作者：
Huang Yidong
中科院分区：
文献类型：
--
作者：
Dong Shuai;Yao Xin;Zhang Wei;Chen Sijing;Zhang Weijun;You Lixing;Wang Zhen;Huang Yidong
单光子受激四波混频（StFWM）是单光子水平上的一种重要的非线性光学现象。在此过程中，当两个泵浦光子湮灭时，信号光子和闲频光子被种子单光子激发。生成的光子彼此相关，更重要的是，其中一个光子与种子光子处于相同的模式。因此，StFWM在实现量子态操纵和量子克隆等复杂的光子量子信息处理功能方面具有巨大的潜力。在本文中，我们首次在光纤中进行了单光子 StFWM 的实验演示。通过使用单光子作为种子光子，在电信频段实现了真正的单光子 StFWM 过程。通过时间分辨的四光子符合测量和不同种子泵延迟下四光子符合计数的变化证实了这一点。根据实验结果，量子克隆机的潜在性能......
Single-photon stimulated four-wave mixing (StFWM) is an important nonlinear optical phenomenon at the single-photon level. In this process, signal and idler photons are stimulated by seeded single photons when two pump photons are annihilated. The generated photons are correlated with each other, and more importantly, one of them is in the same mode with the seeded photons. Hence, StFWM has great potential to realize complex functions of photonic quantum information processing, such as quantum state manipulation and quantum cloning. In this paper, we provide the first experimental demonstration of single-photon StFWM in a piece of optical fiber. By using heralded single photons as the seeded photons, a true single-photon StFWM process is realized at the telecom band. It is confirmed by time-resolved four-photon coincidence measurement and variation of four-photon coincidence counts under different seed–pump delays. According to the experiment results, the potential performance of a quantum cloning machine...