Inelastic transport in the Coulomb blockade regime within a nonequilibrium atomic limit

A method developed by Sandalov et al. [Int. J. Quantum Chem. 94, 113 (2003)] is applied to inelastic transport in the case of strong correlations on the molecule, which is relatively weakly coupled to contacts. The ability of the approach to deal with the transport in the language of many-body molecular states as well as to take into account charge-specific normal modes and nonadiabatic couplings is stressed. We demonstrate the capabilities of the technique within simple model calculations and compare it to previously published approaches.

Figure 1

(Color online) Conductance map for elastic transport through a quantum dot. See text for parameters.

Figure 2

(Color online) Conductance map for inelastic transport through a quantum dot. Linear coupling model (42). See text for parameters.

Figure 3

(Color online) Conductance map for inelastic transport through a quantum dot. Charge state dependent frequencies. See text for parameters.

Figure 4

(Color online) Conductance map for elastic transport through a double quantum dot. See text for parameters.

Figure 5

(Color online) Elastic transport through a double quantum dot at fixed source-drain voltage $V_{\text{sd}}/U=0.25$: (a) current vs gate voltage and (b) probability of finding a double quantum dot empty (dotted line, black), singly (dashed line, green), doubly (solid line, red), triply (dash-dotted line, blue), or fully occupied (dash-double-dotted line, magenta). Parameters are the same as in Fig. 4.