The theory of hydrodynamic noise of Landau and Lifshitz is extended by the consideration of correlation times and lengths. We restrict our study to the domain of thermodynamic equilibrium. When the intensity of the fluctuations of a phenomenological model is characterized by a phenomenological...

It is shown that calculations of fluctuations in fluids driven into a stationary state by a temperature gradient are independent of the thermodynamic representation even to nonlinear order in the temperature gradient. The contrast between this result and the conjecture of Garibay-Jiménez and...

Heat and electric conduction in a rigid solid is investigated in the framework of extended irreversible thermodynamics. This allows us to apply directly the original procedure of Onsager to the analysis of the reciprocal relations. A non-local constitutive equation for the heat flux previously...

In the framework of extended irreversible thermodynamics, we propose a unified description of the fluctuations of both the temperature and the heat flux. Their two-time correlations are obtained in equilibrium. When applied to non-equilibrium steady states, the formalism suggests some...

Information theory yields different predictions for the radiation intensity of nonequilibrium radiative systems, depending on what quantity one identifies with the temperature. A possible experiment is proposed that may, in principle, be used in order to determine whether the generalized...

We generalize a previous proposal of an experiment (J. Fort, D. Jou, J.E. Llebot, Physica A 248 (1998) 97) that, on the basis of predicted corrections to the Planck spectral law, may allow to determine experimentally what quantity is measured by a thermometer in steady-state nonequilibrium...