title: Transcending binary logic by gating three coupled quantum dots.
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.
authors: The Fritz Haber Research Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
authors: Michael
authors: M
authors: Klein
authors: S
authors: S
authors: Rogge
authors: F
authors: F
authors: Remacle
authors: R D
authors: RD
authors: Levine
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008962:Models, Theoretical; D008968:Molecular Conformation; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D045663:Quantum Dots; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*