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Schematic diagram of a quantum capacitor consisting of a QD connected to a single electrode. The left and right figures represent the off- and on-states of the quantum capacitor, respectively.
The transient current vs time for various contact couplings, (solid curve), 0.25 (dotted curve), 0.5 (short dashed curve), 1.0 (dashed curve), and 2.5 (dotted-dashed curve). The scaling parameters for the time and for the current are chosen as and , respectively. The inset indicates the current for . Here, the pumping voltage is chosen to be .
Schematic energy diagrams of the quantum capacitor before and after switching the pumping voltage.
The transient current dynamics of experimental data (circles) in Ref. 4 and simulation results (curves). The relaxation times (the level broadening) are (a) and (b) . The experimental data (arbitrary unit) are extracted from Fig. 1B in Ref. 4. The scaling current is given by .
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