Thermodynamic and Informational Entropies in Quantum Mechanics
It is to-day a widespread opinion that entropy (in its thermodynamical sense) and information (in Shannon’s one) are closely related notions (or quantities). As is known, the idea was first initiated by L. Szilard[l] as early as 1929, resumed in 1931 by J. Von Neumann in his treatise about Quantum Mechanics, and it was resumed again and more broadly developed by L. Bri11ouin in 1956 after the publication of the work of C.E. Shannon.
KeywordsQuantum Mechanics Entropy Production Shannonian Entropy External Constraint Macroscopic System
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