Journal
NANO LETTERS
Volume 7, Issue 9, Pages 2795-2799Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl071376e
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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.
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