Entropy 2013, 15(8), 3297-3311; doi:10.3390/e15083297

Entropy and Computation: The Landauer-Bennett Thesis Reexamined

1,* email and 2email
Received: 1 July 2013; in revised form: 2 August 2013 / Accepted: 14 August 2013 / Published: 21 August 2013
(This article belongs to the Special Issue Maxwell’s Demon 2013)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The so-called Landauer-Bennett thesis says that logically irreversible operations (physically implemented) such as erasure necessarily involve dissipation by at least kln2 per bit of lost information. We identify the physical conditions that are necessary and sufficient for erasure and show that the thesis does not follow from the principles of classical mechanics. In particular, we show that even if one assumes that information processing is constrained by the laws of classical mechanics, it need not be constrained by the Second Law of thermodynamics.
Keywords: entropy; erasure; Landauer-Bennett thesis; macrostates; Second Law of thermodynamics
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MDPI and ACS Style

Hemmo, M.; Shenker, O. Entropy and Computation: The Landauer-Bennett Thesis Reexamined. Entropy 2013, 15, 3297-3311.

AMA Style

Hemmo M, Shenker O. Entropy and Computation: The Landauer-Bennett Thesis Reexamined. Entropy. 2013; 15(8):3297-3311.

Chicago/Turabian Style

Hemmo, Meir; Shenker, Orly. 2013. "Entropy and Computation: The Landauer-Bennett Thesis Reexamined." Entropy 15, no. 8: 3297-3311.

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