出典:Wikipedia
出典:『Wikipedia』 (2011/06/10 11:01 UTC 版)
In Classical Statistical Mechanics, the H-theorem, introduced by Ludwig Boltzmann in 1872, describes the increase in the entropy of an ideal gas in an irreversible process. H - theorem follows from considerations of Boltzmann's equation. Claude Shannon denoted his measure of information entropy H after the H-theorem.