Nonequilibrium Quantum Systems: Divergence between Global and Local Descriptions

Figure 3

Dimer heat flux as a function of the temperature of reservoir in both approximations. The solid lines represent the local approach while the dashed lines represent the global approach. The steady state heat flux is calculated for three different values of the qubit energy gap : (a) , (b) , and (c) . In all the cases we have set the temperature of reservoir as zero and .

(a)

(b)

(c)