Effect of external magnetic field on the shift of resonant frequency in photoassociation of ultracold Cs atoms<xref rid="cpb_28_1_013702fn1" ref-type="fn">*</xref><fn id="cpb_28_1_013702fn1"><label>*</label><p>Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304203), the Chang Jiang Scholars and Innovative Research Team in the University of the Ministry of Education of China (Grant No. IRT13076), the National Natural Science Foundation of China (Grant Nos. 61722507, 61675121, 61705123, and 11434007), the Fund for Shanxi 1331 Project Key Subjects Construction, China, and the Applied Basic Research Project of Shanxi Province, China (Grant No. 201701D221002).</p></fn>

Effect of external magnetic field on the shift of resonant frequency in photoassociation of ultracold Cs atoms**

Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304203), the Chang Jiang Scholars and Innovative Research Team in the University of the Ministry of Education of China (Grant No. IRT13076), the National Natural Science Foundation of China (Grant Nos. 61722507, 61675121, 61705123, and 11434007), the Fund for Shanxi 1331 Project Key Subjects Construction, China, and the Applied Basic Research Project of Shanxi Province, China (Grant No. 201701D221002).

Li Pengwei¹, Li Yuqing^{1, 2, †}, Feng Guosheng¹, Wu Jizhou^{1, 2}, Ma Jie^{1, 2}, Xiao Liantuan^{1, 2}, Jia Suotang^{1, 2}

The frequency shift as a function of PA laser intensity for the rovibrational level of v_D − v = 190, J = 0 of Cs 2 0 u + long-range state at three different magnetic fields. The color curves are the linear fittings for the variations of the frequency shifts on the intensity of PA laser at the external magnetic fields of 35 G (green diamonds), 60 G (blue squares), and 85 G (red circles).