Fig. 5

a The pump and the tunneling pulses. b The time evolutions of population P _i  = |a _i |² (i = 0–3). c The coherence dynamics |ρ _ij |. In step I, the peak values of ℏΩ _p and ℏT ₂ are 2.83 and 4 meV, respectively. In step II, the peak values of ℏΩ _p and ℏT ₃ are both 4 meV. Other parameters are the same as those in Fig. 2