资料来源 : Free On-Line Dictionary of Computing

Quantum-dot Cellular Automata
     
         (QCA) Quantum logic circuits created
        by orientating pairs of {quantum cells} so that their relative
        positions determine their affect on each other.  This is
        functionally analogous but structurally different from how
        individual {gates} in {integrated circuits} are combined to
        create logical and memory circuitry.
     
        The advantages of quantum-dot cellular automata over
        conventional circuitry are extremely small size/high density,
        low power requirements, and potentially high processing
        speeds.  Disadvantages (in 2000) are difficulty of fabrication
        and low yield.
     
        See also: {quantum cell wire}.
     
        {Home (http://www.nd.edu/~qcahome/)}.
     
        {(http://www.mitre.org/research/nanotech/quantum_dot_cell.html)}.
     
        ["Quantum Dot Heterostructures", D. Bimberg, et al, John Wiley
        & Sons Ltd., Dec 1998].
     
        (2001-07-17)