Inverse problem of quadratic time-dependent Hamiltonians
Guo Guang-Jiea), Meng Yana), Chang Hongb), Duan Hui-Zenga), Di Bing†b)
       
Plot of Berry’s phase δ B: Berry’s phase is a concave function of ω and has a minimum at ω ≈ 3.2257. The unit of ω is ħ λ 0/ m .