Entropy and Computation: The Landauer-Bennett Thesis Reexamined
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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-08-01
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| Series: | Entropy |
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| Online Access: | http://www.mdpi.com/1099-4300/15/8/3297 |
| _version_ | 1811300197700993024 |
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| author | Orly Shenker Meir Hemmo |
| author_facet | Orly Shenker Meir Hemmo |
| author_sort | Orly Shenker |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-13T06:47:43Z |
| format | Article |
| id | doaj.art-805a16bb48794239855dd0a16a47e490 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-13T06:47:43Z |
| publishDate | 2013-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-805a16bb48794239855dd0a16a47e4902022-12-22T02:57:30ZengMDPI AGEntropy1099-43002013-08-011583297331110.3390/e15083297Entropy and Computation: The Landauer-Bennett Thesis ReexaminedOrly ShenkerMeir HemmoThe 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.http://www.mdpi.com/1099-4300/15/8/3297entropyerasureLandauer-Bennett thesismacrostatesSecond Law of thermodynamics |
| spellingShingle | Orly Shenker Meir Hemmo Entropy and Computation: The Landauer-Bennett Thesis Reexamined Entropy entropy erasure Landauer-Bennett thesis macrostates Second Law of thermodynamics |
| title | Entropy and Computation: The Landauer-Bennett Thesis Reexamined |
| title_full | Entropy and Computation: The Landauer-Bennett Thesis Reexamined |
| title_fullStr | Entropy and Computation: The Landauer-Bennett Thesis Reexamined |
| title_full_unstemmed | Entropy and Computation: The Landauer-Bennett Thesis Reexamined |
| title_short | Entropy and Computation: The Landauer-Bennett Thesis Reexamined |
| title_sort | entropy and computation the landauer bennett thesis reexamined |
| topic | entropy erasure Landauer-Bennett thesis macrostates Second Law of thermodynamics |
| url | http://www.mdpi.com/1099-4300/15/8/3297 |
| work_keys_str_mv | AT orlyshenker entropyandcomputationthelandauerbennettthesisreexamined AT meirhemmo entropyandcomputationthelandauerbennettthesisreexamined |