Journal ArticleDOI
Minimal energy dissipation in logic
R. W. Keyes,Rolf Landauer +1 more
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In this article, it was shown that any required reliability can be obtained with this device, without increased energy expenditure, but at the expense of an increasing time per computational step, and that the system has dissipations larger than but of the same order of magnitude as, the original minimal quantities.Abstract:
Minimal energy dissipations for the logic process based on thermodynamics and general phase space considerations are known. The actual availability of these minimal dissipations has not, however, been demonstrated. These minimal dissipation sources in a computing system also act as noise sources and thereby lead to questions about the ultimate available reliability of the computing process. A new and hypothetical device is presented in this paper and used to construct a physically analyzable computing system. It is demonstrated that this system has dissipations larger than, but of the same order of magnitude as, the original minimal quantities. It is also shown that any required reliability can be obtained with this device, without increased energy expenditure, but at the expense of an increasing time per computational step.read more
Citations
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Journal ArticleDOI
The thermodynamics of computation—a review
TL;DR: In this paper, the authors consider the problem of rendering a computation logically reversible (e.g., creation and annihilation of a history file) in a Brownian computer, and show that it is not the making of a measurement that prevents the demon from breaking the second law but rather the logically irreversible act of erasing the record of one measurement to make room for the next.
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Reversible Computing
TL;DR: According to a physical interpretation, the central result of this paper is that i¢ is ideally possible to build sequential c/rcuits with zero internal power dissipation.
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A device architecture for computing with quantum dots
Craig S. Lent,P.D. Tougaw +1 more
TL;DR: A new adiabatic switching paradigm is developed which permits clocked control, eliminates metastability problems, and enables a pipelined architecture.
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Ultimate physical limits to computation
TL;DR: The physical limits of computation as determined by the speed of light c, the quantum scale ℏ and the gravitational constant G are explored.
Journal ArticleDOI
The computer as a physical system: A microscopic quantum mechanical Hamiltonian model of computers as represented by Turing machines
TL;DR: In this paper, a microscopic quantum mechanical model of computers as represented by Turing machines is constructed, and the model parameters can be adjusted so that for an arbitrary time interval, the “machine” part of the model is stationary.
References
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Theory of Self-Reproducing Automata
John von Neumann,Arthur W. Burks +1 more
TL;DR: This invention relates to prefabricated buildings and comprises a central unit having a peripheral section therearound to form a main residential part defined by an assembly of juxtaposed roofing and facing trusses.
Journal ArticleDOI
Irreversibility and heat generation in the computing process
TL;DR: Two simple, but representative, models of bistable devices are subjected to a more detailed analysis of switching kinetics to yield the relationship between speed and energy dissipation, and to estimate the effects of errors induced by thermal fluctuations.