Analytical solutions for a doubly driven two-level atom

Liu Jin-Yun¹, Jia Feng-Dong¹, Li Xiao-Kang¹, Lv Shuang-Fei¹, Xu Xiang-Yuan^{2, 3}, Xue Ping², Zhong Zhi-Ping^{1, †}

A quantum system of a two-level atom driven by a strong bichromatic laser field, which can be simplified as a two-step process.