Abstract
Physical considerations supported by numerical solution of the quantum dynamics including electron repulsion show that three weakly coupled quantum dots can robustly execute a complete set of logic gates for computing using three valued inputs and outputs. Input is coded as gating (up, unchanged, or down) of the terminal dots. A nanosecond time scale switching of the gate voltage requires careful numerical propagation of the dynamics. Readout is the charge (0, 1, or 2 electrons) on the central dot.
Original language | English |
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Pages (from-to) | 2795-2799 |
Number of pages | 5 |
Journal | Nano Letters |
Volume | 7 |
Issue number | 9 |
DOIs | |
State | Published - Sep 2007 |