Integrable multi-phase thermodynamic systems and Tsallis' composition rule
arXiv:1310.6330 · doi:10.1088/1742-6596/482/1/012009
Abstract
We derive a class of equations of state for a multi-phase thermodynamic system associated with a finite set of order parameters that satisfy an integrable system of hydrodynamic type. As particular examples, we discuss one-phase systems such as the van der Waals gas and the effective molecular field model. The case of N-phase systems is also discussed in detail in connection with entropies depending on the order parameter according to Tsallis' composition rule.
8 pages, submitted to IOP Conference Series