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}

Experimental setup for the PA of ultracold Cs atoms in a magnetically levitated crossed dipole trap at different magnetic fields. IPG, high power fiber laser; WLM, wavelength meter; OI, optical isolator; OF, optical fiber; AOM, acousto-optic modulator; BT, beam trap; L, lens; H, half-wave plate; Q, quarter-wave plate; M, mirror; PBS, polarization beam splitter; MC, magnetic field coil; CCD, charge-coupled device.