Applying a mixed light field generated from a two-level atomic ensemble to two-photon interference

• 作者: SHANCHAO ZHANG SHUYU ZHOU YING WANG YUZHU WANG
• 来源期刊: 光子学研究:英文版
• 学科: 物理学
• 关键词: function. MIXED ENSEMBLE
• 年，卷（期）: 2020,（6）
• 页码范围: 781-787
• 页数: 7页
• 分类号: O43

摘要

A mixed light field generated from a two-level atomic ensemble can be used for two photon interference.In this mixed light field,correlated paired photons generated from a four wave mixing process provide a signal of two-photon interference,while Rayleigh scattered photons of the pump laser provide a stable reference to calibrate the normalized second-order correlation function.We demonstrate two-photon interference using the Hong-Ou-Mandel and Hanbury Brown-Twiss interferometers.A direct quantitative comparison between theoretical predictions and experimental data is performed under perturbed experimental conditions,which reveal this kind of light source has potential application for quantum metrology.