Wave–particle duality in a Raman atom interferometer

Jia Ai-Ai^a),^b), Yang Jun†^a), Yan Shu-Hua^a), Hu Qing-Qing^a), Luo Yu-Kun^a), Zhu Shi-Yao^b)

Scheme of a Raman atom interferometer. The φ -pulse splits the initial state | g 〉 into two paths, i.e., paths A and B . After a free flight time T , it is reflected by a π -pulse and recombined by a π /2-pulse finally.