Scales of Time Where the Quantum Discord Allows an Efficient Execution of the DQC1 Algorithm

Figure 2

Quantum discord of (4) as a function of the 𝑡/𝑇 where 𝑡 is the time and 𝑇 is the scale of time where the nonclassical correlations prevail. The interval considered is 0≤𝑡/𝑇≤10⁻³ and the value of the impurity is given by (7).