期刊
COMPTES RENDUS PHYSIQUE
卷 8, 期 5-6, 页码 598-608出版社
centre Mersenne pour ldition scientifique ouverte
DOI: 10.1016/j.crhy.2007.05.002
关键词
thermodynamic entropy production; dynamical randomness; entropy per unit time; time reversal
In nonequilibrium steady states, the probabilities of the time-reversed paths differ in general from the path probabilities and they decrease at different rates given, respectively, by the time-reversed and standard entropies per unit time. These quantities characterize temporal disorder in the time-reversed paths and the paths themselves. The difference between these quantities gives the thermodynamic entropy production in units of Boltzmann's constant. Out of equilibrium, the temporal disorder of the time-reversed paths turns out to be larger than the temporal disorder of the paths themselves. In this way, a theorem is obtained according to which the temporal order of the paths is greater than for the time-reversed paths. The temporal disorder or dynamical randomness of the paths and their time-reversal have large-deviation proper-Lies directly connected to the thermodynamic entropy production.
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