Dipole–dipole interactions enhance non-Markovianity and protect information against dissipation

Jan Munsif^{1, 2}, Xu Xiao-Ye^{1, 2}, Wang Qin-Qin^{1, 2}, Chen Zhe^{1, 2}, Han Yong-Jian^{1, 2}, Li Chuan-Feng^{1, 2, †}, Guo Guang-Can^{1, 2}

Non-Markovianity N ( ρ SA ) as a function of DDI (η) (red curve) and detuning ( Δ ) (blue curve) throughout the whole time evolution for (a) non-Markovian regime with λ / γ 0 = 0.1 and (b) Markovian regime with λ / γ 0 = 3 . These demonstrate that non-Markovianity increases with DDI strength in both regimes, and decreases with increasing detuning in the non-Markovian regime.