![]() ![]() The thermodynamics of computation - a review. Dissipation and heat generation in the computing process. Furthermore, it provides new bounds on the heat generation of computations: because conditional entropies can become negative in the quantum case, an observer who is strongly correlated with a system may gain work while erasing it, thereby cooling the environment.īennett, C. This result gives a direct thermodynamic significance to conditional entropies, originally introduced in information theory. In other words, the more an observer knows about the system, the less it costs to erase it. Our main result is that the work cost of erasure is determined by the entropy of the system, conditioned on the quantum information an observer has about it. Here we show that the standard formulation and implications of Landauer’s principle are no longer valid in the presence of quantum information. However, this consideration assumes that the information about the system to be erased is classical, and does not extend to the general case where an observer may have quantum information about the system to be erased, for instance by means of a quantum memory entangled with the system. Landauer’s principle states that the erasure of data stored in a system has an inherent work cost and therefore dissipates heat 3, 4, 5, 6, 7, 8. In principle, reversible operations may be performed at no energy cost given that irreversible computations can always be decomposed into reversible operations followed by the erasure of data 1, 2, the problem of calculating their energy cost is reduced to the study of erasure. 1998.The heat generated by computations is not only an obstacle to circuit miniaturization but also a fundamental aspect of the relationship between information theory and thermodynamics. Journal of the Royal Statistical Society: Series A (Statistics in Society). Sustainability indicators–integrating quality of life and environmental protection. ![]() Journal of Water Chemistry and Technology. Conductivity of water media as an alternative of electronic and ionic transfer. In Statistical Physics and Thermodynamics of Nonlinear Nonequilibrium Systems. Violation of Boltzmann's H theorem in real gases. Journal of Geophysical Research: Atmospheres. Effect of forest fire on the fluxes of CO2, CH4 and N2 O in boreal forest soils, interior Alaska. Journal of Geophysical Research: Space Physics. Ionospheric holes made by ballistic missiles from North Korea detected with a Japanese dense GPS array. Primary production of the biosphere: integrating terrestrial and oceanic components. Volatile organic compound emissions in relation to plant carbon fixationĪnd the terrestrial carbon budget. Kesselmeier J., Ciccioli P., Kuhn U., Stefani P., Biesenthal T., Rottenberger S. An analog of the Boltzmann H-theorem (a Liapunov function) for systems of coupled chemical reactions. ![]() Physica A: Statistical Mechanics and its Applications. Seeking the foundations of cognition in bacteria: From Schrödinger's negative entropy to latent information. The thermodynamic meaning of negative entropy. D., Åberg J., Renner R., Dahlsten O., & Vedral V. Transition from Generalized Kinetic Equation to Equations of Gas Dynamics. In Turbulent Motion and the Structure of Chaos. International journal of bifurcation and chaos. Why irreversibility? The formulation of classical and quantum mechanics for nonintegrable systems. What is life? The physical aspect of the living cell. I) REPORT OF THE UNITED NATIONS CONFERENCE ON ENVIRONMENT AND DEVELOPMENT 3/5 Plan of Implementation of the World Summit on Sustainable Development Ī/CONF.151/26 (Vol. Report of the United Nations Conference on Environment and Development in June 1992 in Rio de Janeiro–Documents–Agenda 21 (Ed.: Bundesministerium f¸r Umwelt, Naturschutz und Reaktorsicherheit), Bonn, o.J. ![]()
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