Norton, John D. (2025) The Simply Uninformed Thermodynamics of Erasure. Philosophy of Physics, 3(1) (3). pp. 1-21. ISSN 2753-5908
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Abstract
1. Strong and weak notions of erasure are distinguished according to whether the single erasure procedure does or does not leave the environment in the same state independently of the pre-erasure state.
2. Purely thermodynamic considerations show that strong erasure cannot be dissipationless.
3. The main source of entropy creation in erasure processes at molecular scales is the entropy that must be created to suppress thermal fluctuations (“noise”).
4. A phase space analysis recovers no minimum entropy cost for weak erasure and a positive minimum entropy cost for strong erasure.
5. An information entropy term has been attributed mistakenly to pre-erasure states in the Gibbs formalism through the neglect of an additive constant in the “–k sum p log p” Gibbs entropy formula.
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Item Type: | Published Article or Volume | ||||||
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Additional Information: | Open access. CC Attribution 4.0 | ||||||
Keywords: | entropy, erasure, fluctuations, information, Landauer's principle, thermodynamics | ||||||
Subjects: | Specific Sciences > Physics > Statistical Mechanics/Thermodynamics | ||||||
Depositing User: | John Norton | ||||||
Date Deposited: | 23 Feb 2025 14:27 | ||||||
Last Modified: | 23 Feb 2025 14:27 | ||||||
Item ID: | 24797 | ||||||
Journal or Publication Title: | Philosophy of Physics | ||||||
Publisher: | LSE Press | ||||||
Official URL: | https://philosophyofphysics.lse.ac.uk/articles/10.... | ||||||
DOI or Unique Handle: | DOI: https://doi. org/10.31389/pop.154 | ||||||
Subjects: | Specific Sciences > Physics > Statistical Mechanics/Thermodynamics | ||||||
Date: | 13 February 2025 | ||||||
Page Range: | pp. 1-21 | ||||||
Volume: | 3(1) | ||||||
Number: | 3 | ||||||
ISSN: | 2753-5908 | ||||||
URI: | https://philsci-archive.pitt.edu/id/eprint/24797 |
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