Quantum speed limits of a qubit system interacting with a nonequilibrium environment
He Zhi†, , Yao Chun-Mei, Li Li, Wang Qiong
       

The QSL time τQSL (a), the non-Markovianity [(b) solid line] and the quantity [(b) dashed line] associated the non-Markovianity and decoherence factor as a function of the ohmicity parameter s for the thermal equilibrium environment. Other parameters are Ω = 1, α = π/4, and the actual driving time τ = 5.