Effect of entanglement embedded in environment on quantum non-Markovianity based on collision model

Xiao-Ming Li(李晓明),Yong-Xu Chen(陈勇旭),Yun-Jie Xia(夏云杰),Zhong-Xiao Man(满忠晓)

Figure 7. (a) Non-Markovianity against the intracollision strength ${\gamma }_{RR}$ for the different initial entangled states of auxiliary qubits with $\theta =\pi /4.$ For ease of comparison, the curve of the non-Markovianity N when $\theta =0,\beta =0$ is given in this plot, which is shown by dash black line. (b) Non-Markovianity against ${\gamma }_{RR}$ for the different initial entangled states of auxiliary qubits with $\theta =0.$ The parameters are given by ${\gamma }_{SR}=0.1,$ ${\gamma }_{SS}=0.01$ and $\omega =1.$