The two channel model discussed in the paper. Each channel comprises one level coupled to the left and right electrodes. W and S denote weakly and strongly coupled levels, respectively.
Current (panels (a)–(c)) and populations of the channels (panels (d)–(f)). Results for the models A (panels (a) and (d)), B (panels (b) and (e)), and C (panels (c) and (f)) are shown for the channels S (dashed-dotted line, red) and W (dotted line, blue), and compared to the PP-NEGF results for the same channels (solid, red, and dashed, blue lines, respectively). Note, the PP-NEGF data are the same in panels (a)–(c) and (d)–(f). See text for parameters.
Same as Fig. 2 except U = 500 meV.
Same as Fig. 2 except meV and meV.
Same as Fig. 2 except T = 0 K.
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