Inverse problem of quadratic time-dependent Hamiltonians
Guo Guang-Jie
a)
, Meng Yan
a)
, Chang Hong
b)
, Duan Hui-Zeng
a)
, 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 .