Simple explanation of Landauer's bound and its ineffectiveness for multivalued logic
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We discuss, using recent results on the Landauer's bound in multivalued logic, the difficulties and pitfalls of how to apply this principle. The presentation is based on Szilard's version of Maxwell's demon experiment. Different versions of thermodynamical/mechanical memory are presented - one-hot encoding version and the implementation based on reversed Szilard's experiment. Relation of Landauer's principle to Galois connection is explained in detail.
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