Results 211 to 220 of about 825 (258)

Origins of life: the possible and the actual. [PDF]

open access: yesPhilos Trans R Soc Lond B Biol Sci
Solé R, Kempes C, Stepney S.
europepmc   +1 more source

Molecular Quantum-Dot Cellular Automata

Journal of the American Chemical Society, 2003
Molecular electronics is commonly conceived as reproducing diode or transistor action at the molecular level. The quantum-dot cellular automata (QCA) approach offers an attractive alternative in which binary information is encoded in the configuration of charge among redox-active molecular sites.
Craig S, Lent   +2 more
openaire   +3 more sources

Quantum cellular automata

Nanotechnology, 1993
The authors formulate a new paradigm for computing with cellular automata (CAS) composed of arrays of quantum devices-quantum cellular automata. Computing in such a paradigm is edge driven. Input, output, and power are delivered at the edge of the CA array only; no direct flow of information or energy to internal cells is required.
C S Lent   +3 more
openaire   +1 more source

Quantum-dot cellular automata

Progress in Quantum Electronics, 2001
There has been increasing concern in recent years that the limits of what can be achieved with current approaches to improving device performance will soon be reached. Quantum-dot cellular automata (QCA) have been proposed as a means of getting around these limitations. This paper reviews the work done concerning QCA to date.
T. Cole, J.C. Lusth
openaire   +2 more sources

Nonlocal computation in quantum cellular automata

Physical Review A, 1993
Quantum cellular automata (QCA) have been introduced [G. Gr\"ossing and A. Zeilinger, Complex Syst. 2, 197 (1988); 2, 611 (1988)] as n-dimensional arrays of discrete sites characterized by a complex number whose absolute square lies between 0 and 1 such that each site represents a quantum-mechanical probability amplitude.
, Fussy   +3 more
openaire   +2 more sources

PLAs in Quantum-Dot Cellular Automata

IEEE Transactions on Nanotechnology, 2006
Various implementations of the quantum-dot cellular automata (QCA) device architecture may help many performance scaling trends continue as we approach the nanoscale. Experimental success has led to the evolution of a research track that looks at QCA-based design.
X.S. Hu   +4 more
openaire   +1 more source

Room Temperature Magnetic Quantum Cellular Automata

Science, 2000
All computers process information electronically. A processing method based on magnetism is reported here, in which networks of interacting submicrometer magnetic dots are used to perform logic operations and propagate information at room temperature. The logic states are signaled by the magnetization direction of the single-domain magnetic dots; the ...
, Cowburn, , Welland
openaire   +2 more sources

Quantum-Dot Cellular Automata

2003
An introduction to of quantum-dot cellular automata (QCA) is presented. QCA is a transistorless nanoelectronic computation paradigm that addresses the issues of device and power density which are becoming increasingly important in the electronics industry.
C. S. Lent   +8 more
openaire   +1 more source

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