Quantum dynamics of an impurity-doped Bose–Einstein condensate system

Yu Han,Zhen Li,Le-Man Kuang

Figure 4. The quantum evolution of the amplitude of the BEC matter-wave field versus the scaled time τ when the impurity part is rapidly changing, for different values of the number of impurities. Figures 4(a) and (b) correspond to the number of impurities N = ten and N = 20, respectively. The other related parameters are the number of the BEC n0 = 105 and the coupling ratio κ = 500. The dashed line in figures 4(a) and (b) corresponds to the situation of the absence of the impurities with κ = zero.