Minimal Energy Cost for Thermodynamic Information Processing: Measurement and Information Erasure
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چکیده
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Comment on "Minimal energy cost for thermodynamic information processing: measurement and information erasure".
The fundamental lower bounds on the thermodynamic energy cost of measurement and information erasure are determined. The lower bound on the erasure validates Landauer's principle for a symmetric memory; for other cases, the bound indicates the breakdown of the principle. Our results constitute the second law of "information thermodynamics," in which information content and thermodynamic variabl...
متن کاملMinimal Energy Cost of Thermodynamic Information Processing: Measurement and Information Erasure
The fundamental lower bounds on the thermodynamic energy cost of measurement and information erasure are determined. The lower bound on the erasure validates Landauer’s principle for a symmetric memory; for other cases, the bound indicates the breakdown of the principle. Our results constitute the second law of “information thermodynamics,” in which information content and thermodynamic variabl...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2009
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.102.250602