Fig. 3
From: Daemonic ergotropy: enhanced work extraction from quantum correlations
Distribution of two-qubit states in the daemonic gain-vs.-concurrence plane. We have generated 104 general random states of system and ancilla, evaluating the concurrence C and daemonic gain \(\delta {\cal W}\) for each of them (red dots). The blue curves enclosing the distribution correspond to boundary families discussed in the body of the paper. Notice that states at \({\cal C} = 0\) may correspond to arbitrarily large values of the daemonic gain \(\delta {\cal W}\)
