Figure 2

Time evolution of the extractable work Wex/kT ln2 for one qubit system.
The blue solid line corresponds to a Pauli channel model with decay rates γ1(t) = γ2(t) = λ/2 and γ3(t) = ω tan(ωt)/2, with λ = 0.1 and ω = 2 (a.u.). The red dashed line corresponds to a Pauli channel model37 with decay rates γ1(t) = γ2(t) = λ/2 and γ3(t) = −ω tanh(ωt)/2, with λ = 1 and ω = 0.5 (a.u.). In both cases the dynamical map is non-divisible but only in one scenario (blue solid line) revivals of work extraction are present.