Efficient solver for time-dependent Schrödinger equation with interaction between atoms and strong laser field

Zhou Sheng-Peng^{1, 2}, Liu Ai-Hua^{1, 2}, Liu Fang³, Wang Chun-Cheng^{1, 2}, Ding Da-Jun^{1, 2, †}

Plots of (a) power and (b) phase versus harmonics of HHG of hydrogen atom driven by intense laser field (800 nm and 1.0×10¹⁴ W/cm²), obtained by using Krylov subspace with different orders.