Abstract
Linear diffusion in a system of noninteracting fermion oscillators is constructed using the methods of statistical dynamics. The temperature distribution is shown to obey the heat equation Cv(T) delta T/ delta t= lambda div (Cv(T) grad T)/2 where Cv= delta (E)/ delta T is the heat capacity/molecule. An example shows that the system violates the 'principle of minimal entropy production' at a stationary state. The model confirms the similar conclusion drawn by M.J. Klein (1956).
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