Entropy and Computation: The Landauer-Bennett Thesis Reexamined

Entropy

Meir Hemmo¹ 

[1] Department of Philosophy, University of Haifa, Haifa 31905, Israel

关键词: entropy;    erasure;    Landauer-Bennett thesis;    macrostates;    Second Law of thermodynamics;   

DOI  :  10.3390/e15083297

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.