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A Modified Szilard's Engine: Measurement, Information, and Maxwell's Demon

Authors :
Michael Devereux
Source :
Entropy, Vol 6, Iss 1, Pp 102-115 (2004)
Publication Year :
2004
Publisher :
MDPI AG, 2004.

Abstract

Abstract: Using an isolated measurement process, I've calculated the effect measurement has on entropy for the multi-cylinder Szilard engine. This calculation shows that the system of cylinders possesses an entropy associated with cylinder total energy states, and that it records information transferred at measurement. Contrary to other's results, I've found that the apparatus loses entropy due to measurement. The Second Law of Thermodynamics may be preserved if Maxwell's demon gains entropy moving the engine partition.

Details

Language :
English
ISSN :
10994300
Volume :
6
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Entropy
Publication Type :
Academic Journal
Accession number :
edsdoj.7ee682cd7b7e4dd3a8cebfb3e63837a3
Document Type :
article
Full Text :
https://doi.org/10.3390/e6010102