Transcending binary logic by gating three coupled quantum dots

[en] 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.

Disciplines :

Physics

Author, co-author :

Klein, M.

Rogge, S.

Remacle, Françoise ; Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de chimie physique théorique

Levine, Raphaël David

Language :

English

Title :

Transcending binary logic by gating three coupled quantum dots

Publication date :

2007

Journal title :

Nano Letters

ISSN :

1530-6984

eISSN :

1530-6992

Publisher :

American Chemical Society, Washington, United States - District of Columbia

Volume :

Pages :

2795-2799

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 05 January 2010

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