Characterization of the photon-number state of a narrow-band single photon generated from a cold atomic cloud

被引：3
|
作者：
Gu, Zhenjie [1 ]
Yang, Ce [1 ]
Chen, J. F. [1 ]
机构：
[1] East China Normal Univ, Sch Phys & Mat Sci, Quantum Inst Light & Atoms, Shanghai 200241, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2019年 / 439卷
基金：
中国国家自然科学基金; 上海市自然科学基金;
关键词：
Homodyne tomography; Quantum state reconstruction; Four-wave mixing; Photon statistics; Quasi-probability distribution;
D O I：
10.1016/j.optcom.2019.01.074
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we demonstrate homodyne tomography on a narrow-band heralded single photon generated from spontaneous four-wave mixing process in a cold atomic cloud. This is the first work that shows the photon-number state of the narrow-band single photons transmitted through electromagnetically-induced transparency window. The Wigner function of the optical state is demonstrated as a non-Gaussian state. The homodyne tomography provides an important route to characterize the single-photon source.
引用
收藏
页码：206 / 209
页数：4
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