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Thermal noise driven computing

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1 Author(s)
Kish, Laszlo B. ; Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843-3128

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A new type of computing, where thermal noise is the information carrier and the clock in a computer, is proposed. The energy requirement/dissipation is studied in a simple digital system with zero threshold voltage when the thermal noise is equal to or greater than the digital signal. In a simple realization of a thermal noise driven gate, the lower limit of energy needed to generate the digital signal is ≈1.1 kT/bit. The arrangement has potentially improved energy efficiency and it is free of leakage current, cross-talk, and ground plane electromagnetic interference problems. Disadvantage is the larger number of required elements.

Published in:

Applied Physics Letters  (Volume:89 ,  Issue: 14 )