The (absence of a) relationship between thermodynamic and logical reversibility
| Autor: | O. J. E. Maroney |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
History
Statistical Mechanics (cond-mat.stat-mech) Logical operations Computer science Physics - History and Philosophy of Physics Information processing FOS: Physical sciences General Physics and Astronomy Landauer's principle Statistical mechanics Maxwell's demon Theoretical physics General Physics (physics.gen-ph) Physics - General Physics History and Philosophy of Science Heat generation History and Philosophy of Physics (physics.hist-ph) Erasure Condensed Matter - Statistical Mechanics |
| Zdroj: | Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics. 36:355-374 |
| ISSN: | 1355-2198 |
| DOI: | 10.1016/j.shpsb.2004.11.006 |
| Popis: | Landauer erasure seems to provide a powerful link between thermodynamics and information processing (logical computation). The only logical operations that require a generation of heat are logically irreversible ones, with the minimum heat generation being $kT \ln 2$ per bit of information lost. Nevertheless, it will be shown logical reversibility neither implies, nor is implied by thermodynamic reversibility. By examining thermodynamically reversible operations which are logically irreversible, it is possible to show that information and entropy, while having the same form, are conceptually different. 19 pages, 5 figures. Based on talk at ESF Conference on Philosophical and Foundational Issues in Statistical Physics, Utrecht, November 2003. Submitted to Studies in History and Philosophy of Modern Physics |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect