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Critical remarks on Landauer's principle of erasure-dissipation: Including notes on Maxwell demons and Szilard engines
Dept of Electrical Engineering, Texas A&M University, College Station, USA.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Dept of Electrical Engineering, Texas A&M University, College Station, USA.
Dept of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, Gdansk, Polen.
2015 (English)In: Proceedings, 2015Conference paper, Published paper (Refereed)
Abstract [en]

We briefly address Landauer's Principle and some related issues in thermal demons. We show that an error-free Turing computer works in the zero-entropy limit, which proves Landauer's derivation incorrect. To have a physical logic gate, memory or information-engine, a few essential components necessary for the operation of these devices are often neglected, such as various aspects of control, damping and the fluctuation-dissipation theorem. We also point out that bit erasure is typically not needed or used for the functioning of computers or engines (except for secure erasure).

Place, publisher, year, edition, pages
2015.
Keyword [en]
entropy; noise; control; dissipation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-268236ISI: 000380427600097ISBN: 9781467383356 (print)OAI: oai:DiVA.org:uu-268236DiVA: diva2:876271
Conference
23rd International Conference on Noise and Flucutations (ICNF 2015), Xi'an, Kina, Juni 2-6
Available from: 2015-12-03 Created: 2015-12-03 Last updated: 2016-10-28Bibliographically approved

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Granqvist, Claes-Göran

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